ECD SYSTEM(w/o Gear Shift Indicator) DATA LIST / ACTIVE TEST

Calculated load by ECM/

Min.: 0%, Max.: 100%

• Idling: 7 to 26%

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

• Driving with the accelerator fully open at 3000 rpm: 80.3 to 99.6%

• Driving with the accelerator fully open at 4000 rpm: 96.4 to 98%

Results of real-vehicle check:

• Ignition switch ON: 0%

• Cranking: 53%

• Idling (warm up the engine): 14% (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 19%

• Running without load (4500 rpm): 31%

• Driving with the accelerator fully open at 2000 rpm: 98%

• Driving with the accelerator fully open at 3000 rpm: 96%

Diagnostic Note:

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

Air flow rate from MAF meter/

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

• Idling: 3 to 12 g/sec.

• Running without load (2000 rpm): 17 to 130 g/sec.

• MAF meter

• MAF 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 g/sec.

• Cranking: 5.07 g/sec.

• Idling (warm up the engine): 3.87 g/sec. (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 34 g/sec.

• Running without load (4500 rpm): 107 g/sec.

• Driving with the accelerator fully open at 2000 rpm: 79 g/sec.

• Driving with the accelerator fully open at 3000 rpm: 138 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.

• If the value is always 200 g/sec. or more:




• EVG circuit is open.

Engine speed/

Min.: 0 rpm, Max.: 6000 rpm

• 50 to 400 rpm: Cranking

• 720 to 820 rpm: Idling with warm engine

• 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.

Absolute pressure inside intake manifold/

Min.: 0 kPa, Max.: 255 kPa

• Idling: 90 to 103 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): 94 kPa (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 117 kPa

• Running without load (4000 rpm): 138 kPa

• Running without load (4500 rpm): 144 kPa

• Driving with the accelerator fully open at 2000 rpm: 186 kPa

• Driving with the accelerator fully open at 3000 rpm: 242 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:

Difficult 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 air 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 air 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:

• Intake air temperature at the intake manifold (after 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:

  0 to 60%

• High electrical load at idling:

  100%

• Battery deterioration

• Alternator malfunction

• Check for accessory lights, malfunctions, 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:

• Outputs the alternator generation duty in order to see the electrical load.

• Can be used to determine whether a higher-than-normal injection volume at idle, etc. is resulting from 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 MAX status, 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.

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).

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:

-

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: 12.2 V

• Cranking (with engine warmed up): 10.1 V

• Idling (warm up the engine): 13.3 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: 13.0 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 higher, 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 altitude, pressure drops by 1 kPa.

  Varies by weather (high atmospheric pressure, low atmospheric pressure).

Connect the TC and TE1 status for Active Test/

ON or OFF

Diagnostic Note:

When the Active Test "Connect the TC and TE1" 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: Check mode result for vehicle speed sensor.

MIL status/

ON or OFF

MIL on run distance/

Min.: 0 km, Max.: 65535 km

Diagnostic Note:

• Distance traveled after a DTC is stored.

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

Running time from MIL on/

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

Diagnostic Note:

• Engine run time since the MIL illumination.

• Cleared when the negative (-) battery cable is disconnected 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 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 clear") = Distance driven since the abnormality occurred.

Warmup cycle after DTC cleared/

Min.: 0, Max.: 255

Diagnostic Note:

• Number of engine warm ups 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

• ETC request opening position

• Cruise request opening position

• VSC request opening position

Results of real-vehicle check:

• Ignition switch ON: 0% (accelerator pedal released)

• Running without load (2500 rpm): 12.1%

• Running without load (5200 rpm): 99.6% (accelerator pedal fully depressed)

Symptoms when out of range:

-

Diagnostic Note:

• "Accel Position" is the accelerator opening angle (%) 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 to restrict the accelerator.

• Without cruise, ETC or VSC requests, and without accelerator restriction by the fail-safe, this is adjusted proportionally to the depressing of the accelerator pedal by the driver.

• Accelerator pedal released: 0%

• Accelerator pedal fully depressed: 100%

Accelerator position No. 1/

Min.: 0%, Max.: 100%

• Accelerator pedal released:

  10 to 22%

• Accelerator pedal fully depressed:

  52 to 90%

Diagnostic Note:

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

Accelerator position No. 2/

Min.: 0%, Max.: 100%

• Accelerator pedal released:

  24 to 40%

• Accelerator pedal fully depressed:

  68 to 95%

Diagnostic Note:

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

Engine speed for No. 1 cylinder/

Min.: 0 rpm, Max.: 6000 rpm

Symptoms when out of range:

When the engine speed of all cylinders is not equal, idling will be rough.

Diagnostic Note:

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

• Indicates the speed of each cylinder when cranking.

  Example - Normal: Engine speed of all cylinders is 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

Engine speed for all cylinders/

Min.: 0 rpm, Max.: 6000 rpm

Diagnostic Note:

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

• Indicates the average engine speed of all cylinders during cranking.

Diagnostic Note:

Identifying model code:

Diagnostic Note:

Identifying engine type: 2ADFTV

Cylinder number/

Min.: 0, Max.: 255

Diagnostic Note:

Identifying cylinder number: 4

Transmission type/

MT or ECT 6th

Diagnostic Note:

Identifying transmission type:

• MT: Manual transmission

• ECT 6th: Automatic transmission

Diagnostic Note:

Identifying destination:

Model year/

Min.: 1900, Max.: 2155

Diagnostic Note:

Identifying model year: 200#

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.

• Negative-pressure diaphragm system.

Target common rail pressure/

Min.: 0 kPa, Max.: 250000 kPa

Results of real-vehicle check:

• Ignition switch ON: 35000 kPa

• Cranking: 50000 kPa

• Idling (warm up the engine): 35000 kPa (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 63240 kPa

• Running without load (3500 rpm): 72950 kPa

• Running without load (4500 rpm): 89870 kPa

• Driving with the accelerator fully open at 2000 rpm: 138590 kPa

• Driving with the accelerator fully open at 3000 rpm: 183210 kPa

Symptoms when out of range:

-

Diagnostic Note:

• Inspect the (actual) fuel pressure, comparing it against 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

• High pressure pipes

• Fuel pressure sensor

• Fuel injector

• Feed pump (fuel supply pump)

• Fuel filter

• Pressure limiter

• Air in the fuel pipes

• Lack of fuel

Results of real-vehicle check:

• Ignition switch ON: 0 kPa

• Cranking: 35390 kPa

• Idling (warm up the engine): 33640 kPa (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 62920 kPa

• Running without load (4500 rpm): 89420 kPa

• Driving with the accelerator fully open at 2000 rpm: 134390 kPa

• Driving with the accelerator fully open at 3000 rpm: 178670 kPa

Symptoms when out of range:

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

Diagnostic Note:

• Fuel pressure 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 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, "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

• High pressure pipes

• Fuel pressure sensor

• Fuel injector

• Feed pump (fuel supply pump)

• Fuel filter

• Pressure limiter

• Air in the fuel pipes

• Lack of fuel

Results of real-vehicle check:

• Ignition switch ON: 0 kPa

• Cranking: 35530 kPa

• Idling (warm up the engine): 34130 kPa (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 63070 kPa

• Driving with the accelerator fully open at 2000 rpm: 135230 kPa

• Driving with the accelerator fully open at 3000 rpm: 179500 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.

Pump current target final value/

Min.: 0 mA, Max.: 4000 mA

• Suction control valve malfunction

• Clogged fuel filter

Results of real-vehicle check:

• Ignition switch ON: 1008 mA

• Cranking: 1155 mA

• Running without load (2500 rpm): 1300 mA

• Driving with the accelerator fully open at 2000 rpm: 1233 mA

• Driving with the accelerator fully open at 3000 rpm: 1397 mA

Symptoms when out of range:

Difficult 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.

• Value becomes stuck at 3000 mA or more, or 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

Results of real-vehicle check:

• Ignition switch ON: 0.2 mA

• Cranking: -6.0 mA

• Idling (warm up the engine): 0.1 mA (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 0.1 mA

• Driving with the accelerator fully open at 2000 rpm: 4.0 mA

• Driving with the accelerator fully open at 3000 rpm: 4.0 mA

Symptoms when out of range:

Difficult starting, lack of power or rough idling

Diagnostic Note:

Value becomes stuck at +/-200 mA or more, or operation is poor (poor movement due to deposits, etc.).

Idle stability status integral control volume/

Min.: -80 mm³/st, Max.: 79 mm³/st

-6 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 RPM, this corrects the injection volume.

  Abnormal if +/-10 mm³/st or more.

• 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: 22 mm³/st

• Idling (warm up the engine and A/C off): 5.4 mm³/st

• Running without load (2500 rpm): 8.2 mm³/st

• Running without load (4500 rpm): 12.5 mm³/st

• Driving with the accelerator fully open at 2000 rpm: 75 mm³/st

• Driving with the accelerator fully open at 3000 rpm: 78 mm³/st

Symptoms when out of range:

-

Diagnostic Note:

• Injection amount for each combustion.

• If injectors are clogged, fuel quality is poor, the fuel filter 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.

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 fuel injector compensation codes are not input into the new ECM, or if a fuel 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:

Displays whether "Pilot Quantity Learning" is prohibited or not due to DPF system control operations.

"Pilot Quantity Learning" is prohibited in the following situations:

• During DPF catalyst regeneration.

• During A/F sensor compensation learning.

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

-20 to 20 mm³/st at standard temperature

• Suction control valve malfunction

• Clogged fuel filter

Results of real-vehicle check:

• Ignition switch ON: -0.3 mm³/st

• Cranking: 0 mm³/st

• Idling (warm up the engine): 4 mm³/st (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 6 mm³/st

• Driving with the accelerator fully open at 2000 rpm: 26.2 mm³/st

• Driving with the accelerator fully open at 3000 rpm: 53.0 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 warm up, 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.

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: 297 μs

• Idling (warm up the engine): 208 μs

• Running without load (2500 rpm): 166 μs

• Running without load (3500 rpm): 0 μs

• Driving with the accelerator fully open at 2000 rpm: 0 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 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: 303 μs

• Idling (warm up the engine): 213 μs (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 182 μs

• Driving with the accelerator fully open at 2000 rpm: 168 μs

• Driving with the accelerator fully open at 3000 rpm: 175 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: 682 μs

• Idling (warm up the engine): 250 μs (2 minutes after starting the vehicle)

• Running without load (2500 rpm): 233 μs

• Driving with the accelerator fully open at 2000 rpm: 714 μs

• Driving with the accelerator fully open at 3000 rpm: 585 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:

poor driveability.

Pilot 1 injection timing/

Min.: -70°CA, Max.: 20°CA

Results of real-vehicle check:

• Ignition switch ON: -10.3°CA

• Cranking: -8.6°CA

• Idling (warm up the engine): -5.5°CA

• Running without load (2500 rpm): -16.4°CA

• Driving with the accelerator fully open at 2000 rpm: -36.0°CA

• Driving with the accelerator fully open at 3000 rpm: -36.0°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: -5.5°CA

• Cranking: -3.4°CA

• Idling (warm up the engine): -5.5°CA

• Running without load (2500 rpm): -6.4°CA

• Driving with the accelerator fully open at 2000 rpm: -12.6°CA

• Driving with the accelerator fully open at 3000 rpm: -26.3°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: 0°CA

• Cranking: 1.8°CA

• Idling (warm up the engine): -2.3°CA

• Running without load (2500 rpm): 2.8°CA

• Driving with the accelerator fully open at 2000 rpm: 0.2°CA

• Driving with the accelerator fully open at 3000 rpm: -3.8°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°CA

• Cranking: 0°CA

• Idling (warm up the engine): 0°CA

• Running without load (2500 rpm): 0°CA

• Driving with the accelerator fully open at 2000 rpm: 25.1°CA

• Driving with the accelerator fully open at 3000 rpm: 25.1°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 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 angle/

Min.: 0%, Max.: 100%

Results of real-vehicle check:

• Ignition switch ON: 0%

• Cranking: 0%

• Idling (warm up the engine): 54%

• Running without load (2500 rpm): 47%

• Running without load (4500 rpm): 0%

• 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:

• When value is out of range and approaching 0%: MAF 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%

Results of real-vehicle check:

• Ignition switch ON: 0%

• Cranking: 0%

• Idling (warm up the engine): 54%

• Running without load (2500 rpm): 47%

• Running without load (4500 rpm): 0%

• 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:

• 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 operation prohibit/

OK or NG

Symptoms when out of range:

-

Diagnostic Note:

• OK: "EGR Valve Control Active Test Possible" Condition.

• NG: "Not Possible" Condition.

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.

• At the upper and lower limits 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 0.34 V and 0.70 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 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: 60 to 85%

• Warmed-up and idling: 10 to 80%

Results of real-vehicle check:

• Ignition switch ON: 80.7%

• Cranking: 84.7%

• Idling (warm up the engine): 18%

• Running without load (2500 rpm): 45.8%

• Driving with the accelerator fully open at 2000 rpm: 80.7%

• Driving with the accelerator fully open at 3000 rpm: 80.7%

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 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%

Results of real-vehicle check:

• Ignition switch ON: 0%

• Cranking: 0%

• Idling (warm up the engine): 93%

• Running without load (2500 rpm): 51%

• Running without load (4500 rpm): 0%

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

• Driving with PM regeneration operation at 2500 rpm: 75%

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: 0%

• Cranking: -6%

• Idling (warm up the engine): 93%

• Running without load (2500 rpm): 51%

• Running without load (4500 rpm): 0%

• 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 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: 0%

• Idling (warm up the engine): 13.7%

• Running without load (2500 rpm): 9.8%

• Driving with the accelerator fully open at 2000 rpm: 9.8%

• Driving with the accelerator fully open at 3000 rpm: 9.4%

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: 16.9 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 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

Results of real-vehicle check:

• Ignition switch ON: 100 kPa

• Cranking: 101 kPa

• Idling (warm up the engine): 92 kPa

• Running without load (2500 rpm): 109 kPa

• Running without load (5200 rpm): 149 kPa (accelerator pedal depressed)

• Driving with the accelerator fully open at 2000 rpm: 227 kPa

• Driving with the accelerator fully open at 3000 rpm: 237 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 supercharging pressure.

VN turbo command value/

Min.: 20%, Max.: 100%

Results of real-vehicle check:

• Ignition switch ON: 79%

• Cranking: 0%

• Idling (warm up the engine): 57%

• Running without load (2500 rpm): 77%

• Running without load (4700 rpm): 41% (accelerator pedal depressed)

• Driving with the accelerator fully open at 2000 rpm: 70%

• Driving with the accelerator fully open at 3000 rpm: 38%

Symptoms when out of range:

-

Diagnostic Note:

• "VN Turbo Command" is a command value.

• 0%: Fully open vanes (contraction of actuation-use rods)

• 90% or more: Fully closed vanes (extension of actuation-use rods)

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

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

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 3.9 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 3.6 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

0 mm³/st

Symptoms when out of range:

-

Diagnostic Note:

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