ECD SYSTEM (w/o DPF) DATA LIST / ACTIVE TEST

Load calculated by ECM/

Min.: 0%, Max.: 100%

• Idling: 7 to 26%

• Running without load (2500 rpm): 10 to 20%

Results of real-vehicle check:

• Ignition switch ON: 0%

• Cranking: 21.1%

• Idling (warm up the engine): 16.4% (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 29.1%

• Running without load (4000 rpm): 31.3%

• Driving with the accelerator fully open at 2000 rpm: 95.2%

• Driving with the accelerator fully open at 3000 rpm: 94.5%

Diagnostic Note:

Calculated load = (Final injection volume / max. injection volume at current engine speed) x 100.

Air flow rate from mass air flow meter/

Min.: 0 g/sec., Max.: 400 g/sec.

• Idling: 5 to 12 g/sec.

• Running without load (2000 rpm): 15 to 35 g/sec.

• Mass air flow meter

• Mass air flow meter circuit

• Intake related clog or leak

• Exhaust related clog

• Turbocharger sub-assembly

• Leak or clog in passages for turbocharger

• Malfunction in which EGR valve does not close

Results of real-vehicle check:

• Ignition switch ON: 0.43 g/sec.

• Cranking: 6.57 g/sec.

• Idling (warm up the engine): 8.84 g/sec. (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 39.31 g/sec.

• Running without load (4000 rpm): 106.32 g/sec.

• Driving with the accelerator fully open at 2000 rpm: 90.46 g/sec.

• Driving with the accelerator fully open at 3000 rpm: 150.73 g/sec.

Symptoms when out of range:

Rough idling

Diagnostic Note:

• Based on the MAF, the ECM controls the fuel injection volume, injection timing, EGR, etc.

• If the value is always approximately 0 g/sec.:




• Mass air flow meter power source circuit is open.

• VG circuit is open or shorted.

• EVG circuit is open.

Engine speed/

Min.: 0 rpm, Max.: 6000 rpm

• 50 to 400 rpm: Cranking

• 610 to 710 rpm: Idling with warm engine*1

• 650 to 750 rpm: Idling with warm engine*2

• Crankshaft position sensor

• Crankshaft position sensor circuit

Symptoms when out of range:

-

Diagnostic Note:

When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 or varies greatly from the actual engine speed.

Target Idling Engine Speed/

Min.: 0 rpm, Max.: 10000 rpm

• 660 rpm*1

• 700 rpm (shift lever in P or N)*2

• 660 rpm (shift lever in D)*2

Symptoms when out of range:

-

Diagnostic Note:

-

Absolute pressure inside intake manifold/

Min.: 0 kPa, Max.: 255 kPa

• Idling: 94 to 104 kPa (depending on barometric pressure)

• Engine running at 3000 rpm: 100 to 150 kPa

• Manifold absolute pressure sensor

• Intake related clog or leak

• Exhaust related clog

• Turbocharger sub-assembly

• Leak or clog in passages for turbocharger

• EGR valve stuck open

• Exhaust leak

• Throttle valve stuck closed

Results of real-vehicle check:

• Ignition switch ON: 100 kPa

• Cranking: 99 kPa

• Idling (warm up the engine): 97 kPa (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 111 kPa

• Running without load (4000 rpm): 116 kPa

• Driving with the accelerator fully open at 2000 rpm: 173 kPa

• Driving with the accelerator fully open at 3000 rpm: 197 kPa

Symptoms when out of range:

Lack of power

Diagnostic Note:

• When the ignition switch is ON or the vehicle is idling, the intake manifold absolute pressure and atmospheric pressure are approximately the same (standard atmospheric pressure = 101 kPa).

  Above approximately 1500 rpm, the turbo becomes effective and the pressure becomes higher than atmospheric pressure.

• Inspect while comparing with "Target Booster Pressure".

• With the accelerator fully open, if the actual manifold absolute pressure (MAP) is low compared to the target booster pressure by at least 20 kPa for 5 seconds or more, a feeling of insufficient power will occur.

Vehicle speed/

Min.: 0 km/h, Max.: 255 km/h

• Speed sensor

• Speed sensor circuit

Symptoms when out of range:

-

Diagnostic Note:

-

Engine coolant temperature/

Min.: -40°C, Max.: 140°C

• Engine coolant temperature sensor

• Thermostat

Symptoms when out of range:

Difficulty starting when engine is cold, rough idle, black smoke, lack of power

Diagnostic Note:

• If the value is -40°C (-40°F) or 140°C (284°F), the sensor circuit is open or shorted.

• After a long soak, the coolant temperature, intake air temperature and ambient temperature are approximately equal.

Intake air temperature/

Min.: -40°C, Max.: 140°C

Symptoms when out of range:

-

Diagnostic Note:

• After a long soak, the engine coolant temperature, intake air temperature and ambient temperature are approximately equal.

• If the value is -40°C (-40°F) or 140°C (284°F), the sensor circuit is open or shorted.

Initial engine coolant temperature/

Min.: -40°C, Max.: 120°C

Diagnostic Note:

For freeze frame data, this tells whether the malfunction happened at a cold start or with a warm engine.

Initial intake air temperature/

Min.: -40°C, Max.: 120°C

Diagnostic Note:

-

Intake air temperature after intercooler/

Min.: -40°C, Max.: 190°C

Diagnostic Note:

• This is the intake air temperature at the intake manifold (after the intercooler).

• During fail-safe operation, the value is set to 165°C (329°F). As the value is set to a high temperature, the turbo pressure may be suppressed and there may be a lack of power.

Pre-glow operation/

ON or OFF

Diagnostic Note:

This is the ECM command.

After-glow operation/

ON or OFF

Diagnostic Note:

This is the ECM command.

Alternator generation duty ratio/

Min.: 0%, Max.: 100%

• No electrical load at idling:

  20 to 60%

• High electrical load at idling:

  100%

• Battery deterioration

• Alternator malfunction

• Electric load, lights, etc.

Results of real-vehicle check:

Idling (no electrical load) (warm up the engine): 41% (2 minutes after starting the vehicle)

Symptoms when out of range:

-

Diagnostic Note:

• This is outputs the alternator generation duty and is used to determine the electrical load.

• Can be used to determine whether a higher-than-normal injection volume at idle, etc. is due to electrical loading or from some other source. For example, when the duty is not high but the idling injection volume is high, there is injector volume degradation or high engine friction.

• Can be used for judging whether or not a malfunctioning component in the electrical system is generating continual generation requests (e.g., battery deterioration is causing an unending full recharge request, etc.). Regardless of whether or not an auxiliary device like the A/C or heater is active, if the alternator duty is always at the maximum value, there is an electrical system abnormality, like battery deterioration.

Starter signal/

ON or OFF

• OFF malfunction (ignition switch (STA) is ON but the signal is OFF and the starter is operating): Wire harness is open or shorted to ground

• ON malfunction (ignition switch (STA) is off but the signal is ON and the starter is not operating): Wire harness is shorted to +B

• Operation malfunction: ignition switch malfunction, starter relay malfunction, starter malfunction, battery or battery cable is defective, or wire harness is open or shorted

Symptoms when out of range:

• Ignition switch is ON but the starter does not operate: Starting is not possible

• Ignition switch is off but the starter continues to operate: STA signal malfunction (P0617) is stored

Diagnostic Note:

Ignition switch (STA) output:

• ON: Starter is operating.

• OFF: Starter is not operating.

Power steering switch status/

ON or OFF

• OFF malfunction: Wire harness (power steering switch to ECM) is open or shorted to ground

• ON malfunction: Wire harness (power steering switch to ECM) is shorted to +B

• Power steering switch malfunction

Symptoms when out of range:

• OFF malfunction (OFF during power steering operation): Engine speed decreases temporarily when power steering is operating

Diagnostic Note:

-

Power steering switch status history/

ON or OFF

Diagnostic Note:

• Power steering switch output history (after disconnecting and reconnecting the battery):




• ON: Power steering operated in the past.

• OFF: Power steering did not operate in the past.

A/C (Air Conditioner) signal/

ON or OFF

A/C operation signal output from A/C amplifier

• ON: Operating

• OFF: Not operating

• A/C switch

• A/C amplifier

• A/C system malfunction, wire harness between A/C amplifier and ECU open or shorted

Symptoms when out of range:

OFF malfunction (OFF even when A/C switch is turned on):

• Engine speed decreases temporarily when the A/C is operating.

Diagnostic Note:

-

Stop light switch/

ON or OFF

• ON: Brake pedal depressed

• OFF: Brake pedal released

• OFF malfunction: Wire harness (stop light switch to ECM, stop light switch to +B) open or shorted to ground

• ON malfunction: Wire harness (stop light switch to ECM) shorted to +B

• Stop light switch

Symptoms when out of range:

Stop light switch malfunction DTC P0504 is stored

Diagnostic Note:

Stop light switch (STP) operation condition:

• ON: Light is on (Brake pedal is depressed).

• OFF: Light is off (Brake pedal is released).

In-tank fuel pump status/

ON or OFF

Operates according to fuel consumption amount

(Operates after about 10 minutes of driving)

Symptoms when out of range:

-

Diagnostic Note:

In-tank fuel pump operation condition:

• ON: In-tank fuel pump is operating.

• Only for vehicles equipped with a double tank.

Immobiliser communication/

ON or OFF

• ON: Normal

• OFF: Engine cannot be started due to immobiliser communication malfunction

• Use of a non-registered key

• Key battery is fully depleted

Symptoms when out of range:

-

Diagnostic Note:

-

Neutral position switch status/

ON or OFF

Symptoms when out of range:

-

Diagnostic Note:

-

Clutch switch/

ON or OFF

Symptoms when out of range:

When OFF with the clutch pedal depressed, the engine does not start.

Diagnostic Note:

-

Battery voltage/

Min.: 0 V, Max.: 15 V

Results of real-vehicle check:

• Ignition switch ON: 12.4 V

• Cranking (with engine warmed up): 10.4 V

• Idling (warm up the engine): 13.5 V

• Running without load (2500 rpm): 13.5 V

• Driving with the accelerator fully open at 2000 rpm: 13.3 V

• Driving with the accelerator fully open at 3000 rpm: 13.5 V

Symptoms when out of range:

If 5 V or less, starting becomes difficult

Diagnostic Note:

If 11 V or less, characteristics of some electrical components change.

Atmospheric pressure value/

Min.: 50 kPa, Max.: 120 kPa

Symptoms when out of range:

-

Diagnostic Note:

• With the ignition switch ON, when the difference between the atmospheric pressure sensor and intake manifold absolute pressure is 10 kPa or more, there is a malfunction in one of the sensors.

• With the ignition switch ON, when the atmospheric pressure is 0 kPa or 140 kPa, there is a malfunction in the sensor circuit.

• Standard atmospheric pressure: 101 kPa.

• For every 100 m increase in elevation, pressure drops by 1 kPa.

  This varies by weather (high atmospheric pressure, low atmospheric pressure).

A/C cut status for Active Test/

ON or OFF

Diagnostic Note:

"Control the A/C Cut Signal" Active Test support data.

VSV for engine mount status/

ON or OFF

Diagnostic Note:

• VSV for engine mount status:




• Ignition switch is ON: OFF.

• Idling: ON.

• "Control the ACM Inhibit" Active Test support data.

TC and TE1 connection status for Active Test/

ON or OFF

Diagnostic Note:

When the "Connect the TC and TE1" Active Test is performed, the system behaves as if TC and CG were connected.

Number of codes/

Min.: 0, Max.: 255

Diagnostic Note:

Number of DTCs appearing at least once during the last 40 times the vehicle was warmed up.

Check mode/

ON or OFF

Diagnostic Note:

Check Mode: The mode in which certain DTCs can be detected more easily and with higher sensitivity.

Check mode result for vehicle speed sensor/

Compl or Incompl

Diagnostic Note:

SPD Test Result: Check mode result for the vehicle speed sensor.

MIL status/

ON or OFF

Distance traveled with MIL on/

Min.: 0 km, Max.: 65535 km

Diagnostic Note:

• Distance traveled after a DTC is stored.

• Cleared when the cable is disconnected from the negative (-) battery terminal, or when the DTC is cleared using the intelligent tester.

Running time after MIL turns on/

Min.: 0 min., Max.: 65535 min.

Diagnostic Note:

• Engine run time since the MIL illumination.

• Cleared when the cable is disconnected from the negative (-) battery terminal, or when the DTC is cleared using the intelligent tester.

Engine run time/

Min.: 0 sec., Max.: 65535 sec.

Diagnostic Note:

Time passed since the ignition switch was turned to ON.

Time after DTC cleared/

Min.: 0 min., Max.: 65535 min.

Diagnostic Note:

Time elapsed since the DTCs were cleared (or shipment from the factory).

Distance driven after DTC cleared/

Min.: 0 km, Max.: 65535 km

Diagnostic Note:

• Distance driven since the DTCs were cleared.

• (Data List "Distance from DTC clear") - (Freeze frame data "Distance from DTC cleared") = Distance driven since the abnormality occurred.

Warmup cycles after DTC cleared/

Min.: 0, Max.: 255

Diagnostic Note:

• Number of engine warmup since DTCs were cleared.

• (Data List "Warmup Cycle Cleared DTC") - (Freeze frame data "Warmup Cycle Cleared DTC") = Warmup cycles since the abnormality occurred.

Diagnostic Note:

Euro-OBD

Diagnostic Note:

-

Complete parts monitor/

Not Avl or Avail

Diagnostic Note:

-

Engine start time/

Min.: 0 ms,

Max.: 267000 ms

Diagnostic Note:

Time necessary for the engine to start.

Accelerator position status/

Min.: 0%, Max.: 100%

• Accelerator pedal released:

  0%

• Accelerator pedal fully depressed:

  100%

• Accelerator pedal position sensor opening position

• ECT requested opening position

• Cruise requested opening position

• VSC requested opening position

Results of real-vehicle check:

• Ignition switch ON: 0.00% (accelerator pedal released)

• Running without load (2500 rpm): 8.98%

• Running without load (4000 rpm): 14.84%

Symptoms when out of range:

-

Diagnostic Note:

• "Accel Position" is the accelerator opening amount (%) for engine control use.

• When the accelerator pedal position sensor output itself (Accelerator Position 1, Accelerator Position 2) is in the normal voltage range, another actuator malfunction has caused the fail-safe function to restrict the accelerator.

• Without cruise, ECT or VSC requests, and without accelerator restriction by the fail-safe function, this is adjusted in proportion to the amount the accelerator pedal is depressed by the driver.

• Accelerator pedal released: 0%

• Accelerator pedal fully depressed: 100%

Accelerator position No. 1/

Min.: 0%, Max.: 100%

• Accelerator pedal released:

  8 to 28%

• Accelerator pedal fully depressed:

  51 to 86%

Diagnostic Note:

Read value with ignition switch ON (do not start engine)

Accelerator position No. 2/

Min.: 0%, Max.: 100%

• Accelerator pedal released:

  30 to 55%

• Accelerator pedal fully depressed:

  73 to 98%

Diagnostic Note:

Read value with ignition switch ON (do not start engine)

Status of VSV for swirl control valve/

ON or OFF

Diagnostic Note:

-

Engine speed for No. 1 cylinder/

Min.: 0 rpm, Max.: 6000 rpm

Symptoms when out of range:

When the engine speeds of all cylinders are not equal, idling will be rough.

Diagnostic Note:

• Output only when the "Check the Cylinder Compression" Active Test is performed.

• Indicates the speed of each cylinder when cranking.

  Example - Normal: Engine speeds of all cylinders are approximately equal.

  When No. 1 cylinder compression is low, "Engine Speed of Cyl #1" is approximately 300 rpm, and "Engine Speed of Cyl #2 to #4" is approximately 200 rpm.

Engine speed for No. 2 cylinder/

Min.: 0 rpm, Max.: 6000 rpm

Engine speed for No. 3 cylinder/

Min.: 0 rpm, Max.: 6000 rpm

Engine speed for No. 4 cylinder/

Min.: 0 rpm, Max.: 6000 rpm

Diagnostic Note:

Identifying model code:

Diagnostic Note:

Identifying engine type: 1KDFTV

Cylinder number/

Min.: 0, Max.: 255

Diagnostic Note:

Identifying cylinder number: 4

Transaxle type/

MT or ECT 5th

Diagnostic Note:

Identifying transaxle type:

• MT: Manual transaxle

• ECT 5th: Automatic transaxle

Diagnostic Note:

Identifying destination:

Model year/

Min.: 1900, Max.: 2155

Diagnostic Note:

Identifying model year: 20##

Diagnostic Note:

Identifying engine type: Diesel

VN turbo type/

Not, Commo or Vacuum

Symptoms when out of range:

-

Diagnostic Note:

Indicates the VN turbo vane actuation method.

• DC motor system.

• Negative-pressure diaphragm system.

• Step motor system.

Target common rail pressure/

Min.: 0 kPa, Max.: 250000 kPa

Symptoms when out of range:

-

Diagnostic Note:

• Inspect the (actual) fuel pressure, comparing it with the common rail target value.

• Considered normal when the actual fuel pressure is within +/-5000 kPa of the target fuel pressure under stable conditions.

Fuel pressure/

Min.: 0 kPa, Max.: 250000 kPa

• Fuel supply pump assembly

• High pressure pipes

• Fuel pressure sensor

• Injector assembly

• Feed pump (fuel supply pump assembly)

• Fuel filter element sub-assembly

• Pressure limiter

• Air in the fuel pipes

• Lack of fuel

Results of real-vehicle check:

• Ignition switch ON: 0 kPa

• Cranking: 35840 kPa

• Idling (warm up the engine): 34870 kPa (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 67520 kPa

• Running without load (4000 rpm): 80340 kPa

• Driving with the accelerator fully open at 2000 rpm: 121840 kPa

• Driving with the accelerator fully open at 3000 rpm: 159070 kPa

Symptoms when out of range:

Difficult to start, poor driveability, lack of power, abnormal combustion noise

Diagnostic Note:

• Fuel press is the actual common rail fuel pressure.

• Inspect by comparing the fuel pressure with the target fuel pressure.

• When in a stable condition such as when idling, the fuel pressure is within +/-5000 kPa of the target fuel pressure.

• The ECM uses fuel pressure for feedback control of the target fuel pressure via the supply pump.

  The injection amount is determined based on the injection timing and fuel pressure.

  Also, the spray pattern is selected based on the fuel pressure.

• For startup, at least 25000 kPa of fuel pressure is needed (take care as there is a response lag when the pressure rises).

• When the fuel pressure is below 25000 kPa, it may cause rough idling.

• When the fuel pressure has decreased by 20000 kPa from the target fuel pressure, there may be a lack of power.

• If the actual fuel pressure is 40000 kPa higher than the target fuel pressure, P1229 will be stored. When it is lower than the target fuel pressure, a lack of power will occur, but a DTC will not be stored.

• When the fuel pressure is higher than 200000 kPa, DTC P0088 will be stored.

Fuel pressure/

Min.: 0 kPa, Max.: 250000 kPa

• Fuel supply pump assembly

• High pressure pipes

• Fuel pressure sensor

• Injector assembly

• Feed pump (fuel supply pump assembly)

• Fuel filter element sub-assembly

• Pressure limiter

• Air in the fuel pipes

• Lack of fuel

Results of real-vehicle check:

• Ignition switch ON: 0 kPa

• Cranking: 46050 kPa

• Idling (warm up the engine): 33530 kPa (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 69850 kPa

• Driving with the accelerator fully open at 2000 rpm: 119900 kPa

• Driving with the accelerator fully open at 3000 rpm: 153780 kPa

Symptoms when out of range:

Poor driveability, lack of power, abnormal combustion noise

Diagnostic Note:

This is a backup output value from the fuel pressure sensor.

Final pump current target value/

Min.: 0 mA, Max.: 4000 mA

• Suction control valve malfunction

• Clogged fuel filter element sub-assembly

Results of real-vehicle check:

• Ignition switch ON: 0.0 mA

• Cranking: 1174.1 mA

• Running without load (2500 rpm): 1112.6 mA

• Driving with the accelerator fully open at 2000 rpm: 1435.0 mA

• Driving with the accelerator fully open at 3000 rpm: 1568.0 mA

Symptoms when out of range:

Difficulty starting, lack of power or rough idling

Diagnostic Note:

• ECU-calculated value for the suction control valve actuation target current.

• Value is large when a high fuel pressure is desired.

• Normally, the value is between 800 and 2500 mA.

• If the value is stuck at 3000 mA or higher, it indicates that the operation is poor (poor movement due to deposits, etc.).

• When this deviates from the standard value, it indicates that for some reason, even though the pump is running hard, the actual fuel pressure is inconsistent with the target fuel pressure.

Pump SCV learning value/

Min.: -4096 mA, Max.: 4095.8 mA

Min.: -100 mA

Max.: 100 mA

• Suction control valve malfunction

• Clogged fuel filter element sub-assembly

Results of real-vehicle check:

• Ignition switch ON: -16.6 mA

• Cranking: -16.6 mA

• Idling (warm up the engine): -18.0 mA (2 minutes after starting the vehicle)

• Running without load (2500 rpm): -19.6 mA

• Driving with the accelerator fully open at 2000 rpm: 26.8 mA

• Driving with the accelerator fully open at 3000 rpm: 26.8 mA

Symptoms when out of range:

Difficulty starting, lack of power or rough idling

Diagnostic Note:

If the value is stuck at 200 mA or higher or -200 mA or less, it indicates that the operation is poor (poor movement due to deposits, etc.).

Idle stability status integral control volume/

Min.: -80 mm³/st, Max.: 79 mm³/st

-10 to 10 mm³/st

Results of real-vehicle check:

Idling (warm up the engine): 0.51 mm³/st

Symptoms when out of range:

Engine friction problem, compression problem or injector breakdown

Diagnostic Note:

• When the actual engine speed does not match the target idling speed, this corrects the injection volume.

  Abnormal if 10 mm³/st or more, or -10 mm³/st or less.

• Only calculated and reflected at idle.

Injection volume/

Min.: 0 mm³/st, Max.: 1279.98 mm³/st

Idling: 3.0 to 10 mm³/st

Results of real-vehicle check:

• Cranking: 45.1 mm³/st

• Idling (warm up the engine and A/C off): 8.8 mm³/st

• Running without load (2500 rpm): 11.9 mm³/st

• Running without load (4000 rpm): 14.1 mm³/st

• Driving with the accelerator fully open at 2000 rpm: 86.5 mm³/st

• Driving with the accelerator fully open at 3000 rpm: 88.0 mm³/st

Symptoms when out of range:

-

Diagnostic Note:

• Injection amount for each combustion.

• If injector assemblies are clogged fuel quality is poor, the fuel filter element sub-assembly is clogged, or engine friction increases, "Injection Volume" will increase.

• If there is a malfunction due to low turbocharger pressure or a low intake air volume, the injection volume is limited and there is a lack of power.

Injection volume feedback learning value:

Min.: -10 mm³/st, Max.: 9.92 mm³/st

Idling: -4.0 to 4.0 mm³/st

• Injector assembly

• Fuel filter element sub-assembly

• Inferior quality fuel

Symptoms when out of range:

-

Diagnostic Note:

• "Inj Vol Feedback Learning" is calculated by the deviation of injection volume at idle speed when the engine is warmed up.

• When the engine is warmed up and in a stable idling condition, this learning will be performed.

• When poor quality fuel or sustained low-speed driving causes a reduction in injector nozzle hole area (reducing injection volume), the "Inj Vol Feedback Learning" will become an abnormal value (for example, 2.0 mm³/st). At that time, if all of "Injection Feedback Value #1 to #4" are within specifications (for example, less than 2 mm³/st), all cylinders are considered to be malfunctioning. If "Injection Feedback Value #1 to #4" is large at only one cylinder (for example, more than 3 mm³/st), that cylinder may have a malfunction.

• Other than the injector assemblies, fuel filter element sub-assembly pore blockage, poor-quality fuel, compression loss and large engine friction can all cause "Inj Vol Feedback Learning" to be abnormal.

• When the engine is started cold, the idling speed is high and gradually slows down in accordance with the increase in engine coolant temperature. If the changing value of the idling speed is unstable while the engine is warming up, check "Inj. FB Vol. For Idle".

• When combustion noise or driveability is bad, check "Inj Vol Feedback Learning" as part of the injection system deterioration diagnosis.

• Only when the ignition switch is turned off is the learned value updated gradually.

Injector Memory Error/

No Error or Error

Symptoms when out of range:

Rough idling, poor driveability, black smoke, white smoke, combustion noise

Diagnostic Note:

If the injector compensation codes are not input into the new ECM, or if an injector compensation code of a different injector model or a compensation code representing a value which exceeds the compensation setting range is input into the new ECM, DTC P1601 is stored and "Injector Memory Error" displays "Error".

Pilot quantity learning prohibition state/

READY or NG

Diagnostic Note:

-

State of "Pilot Quantity Learning"/

Standby / Wait / Learn / Stop / Comple

Diagnostic Note:

If "Pilot Quantity Learning" is incomplete, the MIL illuminates and DTC P1601 is stored.

Fuel return temperature/

Min.: -40°C, Max.: 140°C

Diagnostic Note:

If the "Fuel Return Temp" value is not between 35°C (95°F) and 110°C (230°F), "Pilot Quantity Learning" is prohibited.

Injection pressure feedback compensation volume/

Min.: -500 mm³/st, Max.: 780 mm³/st

-400 to 400 mm³/st at standard temperature

• Suction control valve malfunction

• Clogged fuel filter element sub-assembly

Results of real-vehicle check:

• Ignition switch ON: 0.0 mm³/st

• Cranking: 0.0 mm³/st

• Idling (warm up the engine): 1.4 mm³/st (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 18.9 mm³/st

• Driving with the accelerator fully open at 2000 rpm: 11.2 mm³/st

• Driving with the accelerator fully open at 3000 rpm: -19.5 mm³/st

Symptoms when out of range:

-

Diagnostic Note:

• When the (actual) fuel pressure is equal to the target fuel pressure, this value becomes 0.

• This indicator can be used for diagnosing supply pump related malfunctions.

• When this value (absolute value) is large, it indicates that the difference between the actual and target fuel pressure is also large.

  A positive value indicates that the pressure feed is being increased due to insufficient pressure. A negative value indicates that pressure is being reduced due to excessive rail pressure.

  When the suction control valve does not close properly, it causes rail overpressure, and this value and the "Pump SCV Learning Value" slip to the negative volume side.

Injection volume correction for No. 1 cylinder/

Min.: -10 mm³/st, Max.: 10 mm³/st

Idling: -3.0 to 3.0 mm³/st

• Injector clogging

• Injector deterioration

• Decrease in cylinder compression

• Injector compensation code is incorrectly set (forgot to input code after replacement or made mistake during setting of code after replacing ECM with one from another vehicle)

Results of real-vehicle check:

Idling (warm up the engine): 0 mm³/st (2 minutes after starting the vehicle)

Symptoms when out of range:

Rough idling, black smoke, white smoke, poor driveability, lack of power, abnormal combustion noise, difficult to start

Diagnostic Note:

• When idling after warmup, the injection amount for each cylinder is corrected to optimize the difference between the engine speed of each cylinder.

  Example: For cylinders that are slowing the engine speed compared to other cylinders, the injection volume is increased.

• "Injection Feedback Val" more than 3.0 mm³/st: Injector breakdown is causing injection volume deviation, or insufficient compression is causing poor combustion.

• Even if "Injection Feedback Val" for a cylinder is less than -3.0 mm³/st, the cylinder with this value does not necessarily have a problem.

  Tech Tips

  
  

  • The ECM adjusts each cylinder so that the average "Injection Feedback Val" of the 4 cylinders is approximately 0 mm³/st.

  • If more than one cylinder has a positive correction value, a normal cylinder may have a value less than -3.0 mm³/st.

Injection volume correction for No. 2 cylinder/

Min.: -10 mm³/st, Max.: 10 mm³/st

Idling: -3.0 to 3.0 mm³/st

• Injector clogging

• Injector deterioration

• Decrease in cylinder compression

• Injector compensation code is incorrectly set (forgot to input code after replacement or made mistake during setting of code after replacing ECM with one from another vehicle)

Results of real-vehicle check:

Idling (warm up the engine): -0.5 mm³/st (2 minutes after starting the vehicle)

Diagnostic Note:

-

Injection volume correction for No. 3 cylinder/

Min.: -10 mm³/st, Max.: 10 mm³/st

Idling: -3.0 to 3.0 mm³/st

• Injector clogging

• Injector deterioration

• Decrease in cylinder compression

• Injector compensation code is incorrectly set (forgot to input code after replacement or made mistake during setting of code after replacing ECM with one from another vehicle)

Results of real-vehicle check:

Idling (warm up the engine): 0 mm³/st (2 minutes after starting the vehicle)

Diagnostic Note:

-

Injection volume correction for No. 4 cylinder/

Min.: -10 mm³/st, Max.: 10 mm³/st

Idling: -3.0 to 3.0 mm³/st

• Injector clogging

• Injector deterioration

• Decrease in cylinder compression

• Injector compensation code is incorrectly set (forgot to input code after replacement or made mistake during setting of code after replacing ECM with one from another vehicle)

Results of real-vehicle check:

Idling (warm up the engine): 0.1 mm³/st (2 minutes after starting the vehicle)

Diagnostic Note:

-

Pilot 1 injection period/

Min.: 0 μs, Max.: 65535 μs

Results of real-vehicle check:

• Cranking: 487 μs

• Idling (warm up the engine): 433 μs

• Running without load (2500 rpm): 308 μs

• Running without load (4000 rpm): 294 μs

• Driving with the accelerator fully open at 2000 rpm: 0 μs

• Driving with the accelerator fully open at 3000 rpm: 286 μs

Symptoms when out of range:

Combustion noise, poor driveability, white smoke

Diagnostic Note:

Check to see if "Pilot 1 Injection Period" is not zero when symptoms occur.

Pilot 2 injection period/

Min.: 0 μs, Max.: 65535 μs

Results of real-vehicle check:

• Ignition switch ON: 0 μs

• Cranking: 384 μs

• Idling (warm up the engine): 434 μs (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 337 μs

• Driving with the accelerator fully open at 2000 rpm: 288 μs

• Driving with the accelerator fully open at 3000 rpm: 0 μs

Symptoms when out of range:

Combustion noise, poor driveability, white smoke

Diagnostic Note:

Check to see if "Pilot 2 Injection Period" is not zero when symptoms occur.

Main injection period/

Min.: 0 μs, Max.: 65535 μs

Results of real-vehicle check:

• Cranking: 1185 μs

• Idling (warm up the engine): 569 μs (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 491 μs

• Driving with the accelerator fully open at 2000 rpm: 1123 μs

• Driving with the accelerator fully open at 3000 rpm: 1002 μs

Symptoms when out of range:

-

Diagnostic Note:

• When the fuel pressure becomes 15000 kPa or less, "Main Injection Period" is set to 0.

• When the engine will not start, confirm that injection is performed.

• When P0093, P0627 or P062D is stored, there is an engine stall request. At that time, "Main Injection Period" equals 0.

  Tech Tips

  As the engine stalls 1 minute after the MIL illuminates, freeze frame data cannot be checked.

After injection period/

Min.: 0 μs, Max.: 65535 μs

Symptoms when out of range:

-

Diagnostic Note:

Check to see if "After Injection Period" is not zero when the following symptoms occur:

Black smoke, poor driveability.

Pilot 1 injection timing/

Min.: -70°CA, Max.: 20°CA

Results of real-vehicle check:

• Ignition switch ON: 0.0°CA

• Cranking: -23.0°CA

• Idling (warm up the engine): -16.9°CA

• Running without load (2500 rpm): -40.4°CA

• Driving with the accelerator fully open at 2000 rpm: -53.3°CA

• Driving with the accelerator fully open at 3000 rpm: -53.3°CA

Symptoms when out of range:

-

Diagnostic Note:

-

Pilot 2 injection timing/

Min.: -50°CA, Max.: 20°CA

Results of real-vehicle check:

• Ignition switch ON: 0.0°CA

• Cranking: -3.0°CA

• Idling (warm up the engine): -10.6°CA

• Running without load (2500 rpm): -17.9°CA

• Driving with the accelerator fully open at 2000 rpm: -34.8°CA

• Driving with the accelerator fully open at 3000 rpm: -38.8°CA

Symptoms when out of range:

-

Diagnostic Note:

-

Main injection timing/

Min.: -90°CA, Max.: 90°CA

Results of real-vehicle check:

• Ignition switch ON: 4.6°CA

• Cranking: 0.0°CA

• Idling (warm up the engine): 4.6°CA

• Running without load (2500 rpm): 3.2°CA

• Driving with the accelerator fully open at 2000 rpm: -4.4°CA

• Driving with the accelerator fully open at 3000 rpm: -6.7°CA

Symptoms when out of range:

-

Diagnostic Note:

Use "Main Injection Timing" to check poor drivability when the following symptoms are present: Bad injection timing, black smoke, and white smoke.

After injection timing/

Min.: -10°CA, Max.: 50°CA

Results of real-vehicle check:

• Ignition switch ON: 0.0°CA

• Cranking: 0.0°CA

• Idling (warm up the engine): 0.0°CA

• Running without load (2500 rpm): 0.0°CA

• Driving with the accelerator fully open at 2000 rpm: 0.0°CA

• Driving with the accelerator fully open at 3000 rpm: 0.0°CA

Symptoms when out of range:

-

Diagnostic Note:

-

Fuel temperature/

Min.: -40°C, Max.: 140°C

Symptoms when out of range:

-

Diagnostic Note:

After fully cold soaking the engine, the fuel temperature is the same as the outside air temperature.

Pressure discharge valve operation/

ON or OFF

Diagnostic Note:

This is the ECM command.

EGR valve target opening amount/

Min.: 0%, Max.: 100%

Results of real-vehicle check:

• Ignition switch ON: 0.0%

• Cranking: 0.0%

• Idling (warm up the engine): 57.6%

• Running without load (2500 rpm): 55.6%

• Running without load (4000 rpm): 0.0%

• Driving with the accelerator fully open at 2000 rpm: 0.0%

• Driving with the accelerator fully open at 3000 rpm: 0.0%

Symptoms when out of range:

• When value is out of range and approaching 0%: mass air flow meter degradation, intake or exhaust system blockage

• When value is out of range and approaching 100%: EGR pipe blockage

Diagnostic Note:

• Fully open: 100%.

• Fully closed: 0%.

• Used for comparison to "Actual EGR Valve Pos.".

EGR valve position/

Min.: 0%, Max.: 100%

Symptoms when out of range:

• EGR valve stuck open: Poor starts (engine does not stop), black smoke, white smoke, lack of power

• EGR valve stuck closed: Increased turbo booster noise

Diagnostic Note:

• Fully open: 100%.

• Fully closed: 0%.

• Inspect while comparing to "Target EGR Valve Position".

• Check the valve movement via the Active Test.

• Sometimes malfunctions only occur around a certain temperature, so refer to the engine coolant temperature and outside temperature at the time the malfunction occurred.

EGR lift position/

Min.: 0%, Max.: 100%

Results of real-vehicle check:

• Ignition switch ON: 14.8%

• Cranking: 14.8%

• Idling (warm up the engine): 51.1%

• Running without load (2500 rpm): 43.6%

• Running without load (4000 rpm): 14.8%

• Driving with the accelerator fully open at 2000 rpm: 12.8%

• Driving with the accelerator fully open at 3000 rpm: 12.8%

Symptoms when out of range:

-

Diagnostic Note:

• EGR lift sensor output is calculated from the EGR position sensor output voltage. Value is 0 to 5 V converted to 0 to 100%.

• Fully open: 33.5 to 35.5%.

• Fully closed: 76.9 to 77.3%.

EGR operation prohibition/

OK or NG

Symptoms when out of range:

-

Diagnostic Note:

• OK: It is possible to perform the "Control the EGR Step Position" and "Activate the EGR Valve Close" Active Tests.

• NG: It is not possible to perform the "Control the EGR Step Position" and "Activate the EGR Valve Close" Active Tests..

EGR fully closed position learned value/

Min.: 0 V, Max.: 5 V

Results of real-vehicle check:

Ignition switch ON: 0.52 V

Symptoms when out of range:

-

Diagnostic Note:

• This value is the EGR position sensor output voltage.

• When the value is at the upper or lower limit of the normal range, it is possible that a foreign object is lodged in the EGR valve seat area.

• As the lower and upper limits are 0 V and 1 V respectively, if the value becomes stuck at either of these values, there is a malfunction in the lift sensor or the valve position may be misaligned (foreign matter is present, etc.).

EGR valve lift volume learned value/

Min.: 0 V, Max.: 5 V

Results of real-vehicle check:

Ignition switch ON: 0.74 V

Symptoms when out of range:

-

Diagnostic Note:

When the value is at the upper or lower limit of the normal range, it is possible that a foreign object is lodged in the EGR valve seat area.

EGR valve fully closed position learning status/

OK or NG

Results of real-vehicle check:

Ignition switch ON: OK

Symptoms when out of range:

-

Diagnostic Note:

• "OK" means the fully closed position learning has completed normally.

• When NG, the learned fully closed position may be outside of the normal range.

  When NG, there may be foreign matter stuck in the valve.

EGR monitor/

Not Avl or Avail

Symptoms when out of range:

-

Diagnostic Note:

EGR monitor indicates that the detection of related DTCs is complete.

Absolute throttle position sensor/

Min.: 0%, Max.: 100%

• Ignition switch ON: 70 to 90%

• Warmed-up and idling: 10 to 80%

Results of real-vehicle check:

• Ignition switch ON: 69.8%

• Cranking: 66.6%

• Idling (warm up the engine): 29.9%

• Running without load (2500 rpm): 34.1%

• Driving with the accelerator fully open at 2000 rpm: 69.8%

• Driving with the accelerator fully open at 3000 rpm: 69.8%

Symptoms when out of range:

• Stuck closed: Engine stall, difficult to start, rough idling, lack of power, black smoke, white smoke

• Stuck open: Loud turbocharging sound, bad vibration when engine is stopped

• When the ECM detects a malfunction with the diesel throttle (MIL on), engine power is restricted but city driving is possible.

Diagnostic Note:

• Throttle position sensor output voltage is converted using 5 V = 100%.

• When fully closed: 14%.

• When fully open: 70%.

• When the ignition switch is turned from off to ON, the throttle valve fully opens once.

• When the ignition switch is turned from ON to off, the throttle valve fully closes once.

Target throttle position

Min.: -128%, Max.: 127%

• Throttle valve fully opened: 0%

• Throttle valve fully closed: 100%

Symptoms when out of range:

-

Diagnostic Note:

If there is a malfunction of the throttle actuator, compare the target and actual throttle position values for troubleshooting.

Actual diesel throttle position/

Min.: -20%, Max.: 120%

Results of real-vehicle check:

• Ignition switch ON: -1%

• Cranking: 5%

• Idling (warm up the engine): 81%

• Running without load (2500 rpm): 63%

• Running without load (4000 rpm): -1%

• Driving with the accelerator fully open at 2000 rpm: 0%

• Driving with the accelerator fully open at 3000 rpm: 0%

Symptoms when out of range:

• Stuck closed: Engine stall, difficult to start, lack of power, black smoke, rough idle

• Stuck open: Loud turbocharging sound, bad vibration when engine is stopped

• When ECM detects a malfunction of the diesel throttle (MIL on), engine power is restricted so that the vehicle can drive with a maximum speed of 80 to 100 km/h.

Diagnostic Note:

Closing percentage of the throttle valve.

• Fully closed: 100%.

• Fully open: 0%.

  Tech Tips

  There is no connection with the accelerator. However, under full load, the throttle is usually fully open (0%).

Diesel throttle motor duty/

Min.: 0%, Max.: 100%

Results of real-vehicle check:

• Cranking: 61.1%

• Idling (warm up the engine): 40.0%

• Running without load (2500 rpm): 46.2%

• Driving with the accelerator fully open at 2000 rpm: 61.1%

• Driving with the accelerator fully open at 3000 rpm: 62.3%

Symptoms when out of range:

-

Diagnostic Note:

When the moving force to open and close the diesel throttle valve increases, the value of the Throttle Motor Duty increases.

Throttle fully closed position learned value/

Min.: 0 deg, Max.: 84 deg

Results of real-vehicle check:

Ignition switch ON: 17.1 deg

Symptoms when out of range:

-

Diagnostic Note:

• When the ignition switch is turned from ON to off and 5 seconds elapse, learning of "Throttle Close Learning Val." will be complete.

• When "Throttle Close Learning Val." is outside of the normal range, a foreign object may be lodged in the throttle valve.

• If the value is stuck at the upper limit of 21.25 deg, there is a chance that a malfunction is present.

  However, as the initial value for the learned value is 21.25 deg, it is necessary to check the value after learning is completed.

Diesel throttle learning history/

OK or NG

Results of real-vehicle check:

Ignition switch ON: OK

Symptoms when out of range:

-

Diagnostic Note:

• If the system is functioning properly, learning will be performed when the ignition switch is turned from ON to off.

• NG indicates that a foreign object may be lodged in the throttle valve or actuator components, or a disconnection/short exists in the signal wires.

Target booster pressure/

Min.: 0 kPa, Max.: 320 kPa

Symptoms when out of range:

-

Diagnostic Note:

• Inspect while comparing with "MAP".

• With the accelerator fully open, if the actual manifold absolute pressure (MAP) is low compared to the target booster pressure by at least 20 kPa for 5 sec. or more, a feeling of a lack of power will occur.

• When the vehicle is driven with the engine speed at 3000 rpm or more and the accelerator pedal fully depressed, "MAP" is approximately equal to "Target Booster Pressure".

Boost pressure deviation/

Min.: -320 kPa, Max.: 320 kPa

Diagnostic Note:

Difference between target and actual boost pressure.

VN turbo driver opening angle level when abnormality detected/

1, 2 or 3

Symptoms when out of range:

-

Diagnostic Note:

• 3: Nearly fully closed (boost pressure and pre-turbine pressure are incredibly high and there is a risk of engine damage).

• 2: Roughly intermediate opening angle (not as bad as "3", but long-term usage is problematic).

• 1: Nearly fully open (will not cause engine damage, but at a low engine speed, turbocharging pressure will not rise and a lack of power will be felt).

VN turbo command value/

Min.: 0%, Max.: 100%

Results of real-vehicle check:

• Ignition switch ON: 85%

• Cranking: 75%

• Idling (warm up the engine): 90%

• Running without load (2500 rpm): 89%

• Running without load (4000 rpm): 54%

• Driving with the accelerator fully open at 2000 rpm: 64%

• Driving with the accelerator fully open at 3000 rpm: 40%

Symptoms when out of range:

-

Diagnostic Note:

• "VN Turbo Command" is a command value.

• 0%: Vanes fully open (contraction of actuation rods)

• 90% or more: Vanes fully closed (extension of actuation rods)

• When this value is large, the turbo works well.

• There is no actual opening angle data to handle the VN turbo command value.

Actual VN turbo position/

Min.: 0%, Max.: 127.5%

Results of real-vehicle check:

• Ignition switch ON: 85%

• Cranking: 75%

• Idling (warm up the engine): 90%

• Running without load (2500 rpm): 89%

• Running without load (4000 rpm): 54%

• Driving with the accelerator fully open at 2000 rpm: 64%

• Driving with the accelerator fully open at 3000 rpm: 40%

Symptoms when out of range:

-

Diagnostic Note:

If the vanes do not move smoothly or become stuck, the difference between the actual value and the target value ("VN Turbo Command") becomes larger, and as a result, the motor duty also becomes larger.

VN position sensor output voltage/

Min.: 0 V, Max.: 5 V

Symptoms when out of range:

-

Diagnostic Note:

-

VN turbo motor duty/

Min.: 0%, Max.: 127.5%

Symptoms when out of range:

-

Diagnostic Note:

If the vanes do not move smoothly, the duty will increase towards 100%.

VN turbo fully closed position learned value/

Min.: 0 V, Max.: 5 V

Symptoms when out of range:

-

Diagnostic Note:

-

VN turbo fully closed position learning status/

OK or NG

Symptoms when out of range:

-

Diagnostic Note:

If learning is not complete, the vehicle performance may decrease (power output is low).

VN turbo maximum opening amount/

Min.: 0%, Max.: 100%

100%

Results of real-vehicle check:

Ignition switch ON: 99.6%

Symptoms when out of range:

-

Diagnostic Note:

• Vane maximum angle expressed in % (Fully open: 100%).

• KD engine is usually 100%.

VN turbo minimum opening amount/

Min.: 0%, Max.: 100%

0%

Results of real-vehicle check:

Ignition switch ON: 99.8%

Symptoms when out of range:

-

Diagnostic Note:

• Vane maximum angle expressed in % (Fully open: 100%).

• KD engine is usually 7%.

VN turbo operation prohibition/

OK or NG

Symptoms when out of range:

-

Diagnostic Note:

When NG is displayed, the ECM does not permit "Test the Turbo Charger Step Motor" and "Activate the VN Turbo Open" Active Tests to be performed.

Engine speed when starter off/

Min.: 0 rpm,

Max.: 1594 rpm

Diagnostic Note:

Engine speed immediately after starting the engine.

Starter on count/

Min.: 0, Max.: 255

Diagnostic Note:

Number of times the starter turned on from the time the ignition switch was turned to ON.

Distance driven during previous trip/

Min.: 0 km, Max.: 261 km

Diagnostic Note:

• Used to confirm the driving conditions of the previous trip (before the malfunction occurred).

• If the vehicle is frequently driven under light load (always idling, distance driven is often short, etc.), engine startability and idling stability may deteriorate due to an insufficient injection volume caused by an injector clog.

Electric load feedback value/

Min.: 0 mm³/st, Max.: 39.8 mm³/st

0 to 7 mm³/st

Symptoms when out of range:

-

Diagnostic Note:

Expected injection volume increase after the electrical load turns from off to on.

A/C load feedback value/

Min.: 0 mm³/st, Max.: 39.8 mm³/st

0 to 3.7 mm³/st

Symptoms when out of range:

-

Diagnostic Note:

Expected injection volume increase after the A/C turns from off to on.

Power steering load feedback value/

Min.: 0 mm³/st, Max.: 39.8 mm³/st

3.2 mm³/st

Symptoms when out of range:

-

Diagnostic Note:

Expected injection volume increase after the power steering turns from off to on.

MIL status from ECT/

ON or OFF

Symptoms when out of range:

-

Diagnostic Note:

-

Shift position signal from ECT/

1st, 2nd, 3rd, 4th, 5th or 6th

Symptoms when out of range:

-

Diagnostic Note:

-

ATF temperature from ECT/

Min.: -40°C, Max.: 215°C

Symptoms when out of range:

-

Diagnostic Note:

-

Output shaft speed/

Min.: 0 rpm, Max.: 12750 rpm

Symptoms when out of range:

-

Diagnostic Note:

-

Lock-up/

ON or OFF

Symptoms when out of range:

-

Diagnostic Note:

-

ATF temperature sensor value/

Min.: -40°C, Max.: 215°C

With engine cold:

Equal to ambient temperature

Symptoms when out of range:

-

Diagnostic Note:

If the value is -40°C (-40°F) or 150°C (302°F), the ATF temperature sensor circuit is open or shorted.