ECD SYSTEM DATA LIST / ACTIVE TEST


  1. READ DATA LIST

    Tech Tips

    Using the intelligent tester to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

    Note

    In the table below, the values listed under "Normal Condition" are for reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.


    1. Warm up the engine.

    2. Turn the ignition switch off.

    3. Replace the normal DLC3 cable (12 V specification) for the intelligent tester with the 24 V DLC3 cable.

      Note

      Be sure to use the 24 V DLC3 cable when connecting the intelligent tester to the DLC3. Using the normal DLC3 cable (12 V specification) will cause damage to the tester.

    4. Connect the intelligent tester to the DLC3.

    5. Turn the ignition switch to ON.

    6. Turn the tester on.

    7. Enter the following menus: Powertrain / Engine and ECT / Data List.

    8. Read the Data List.

      Tester Display Measurement Item/Range Normal Condition Diagnostic Notes
      Vehicle Speed

      Vehicle speed:

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

      		 Actual vehicle speed Speed indicated on speedometer
      Engine Speed

      Engine speed:

      Min.: 0 rpm, Max.: 16383 rpm

      		 Idling: 600 to 700 rpm After warming-up engine
      Calculate Load

      Calculated load by ECM:

      Min.: 0%, Max.: 100%

      Idling: 10 to 25%

      Running without load (2500 rpm): 7.5 to 14.5%

      		 -
      MAF

      Air flow rate from mass air flow meter sub-assembly:

      Min.: 0 gm/sec, Max.: 655.35 gm/sec

      Idling: 5.0 to 20.0 gm/sec

      Running without load (3000 rpm): 70 to 90 gm/sec

      0 gm/sec: Mass air flow meter sub-assembly power source circuit is open or VG circuit is open/shorted

      160 gm/sec or more: E2G circuit is open
      Atmosphere Pressure

      Atmospheric pressure value:

      Min.: 0 kPa (0 mmHg, 0 in.Hg), Max.: 255 kPa (1912 mmHg, 75 in.Hg)

      		 Actual atmospheric pressure -
      MAP

      Absolute pressure inside intake manifold:

      Min.: 0 kPa, Max.: 255 kPa

      • Idling: 90 to 100 kPa or less

      • Engine running at 3000 rpm: 110 to 140 kPa or more

      		 -
      Coolant Temp

      Engine coolant temperature:

      Min.: -40°C, Max.: 140°C

      		 After warming up engine: 80 to 100°C (176 to 212°F) If value is -40°C (-40°F) or 140°C (284°F), sensor circuit open or shorted
      Intake Air

      Intake air temperature:

      Min.: -40°C, Max.: 140°C

      		 Equivalent to temperature at intake manifold If value is -40°C (-40°F) or 140°C (284°F), sensor circuit open or shorted
      Intake Air Temp (Turbo)

      Intake air temperature (Turbo):

      Min.: -40°C, Max.: 190°C

      		 65°C (149°F) or less -
      Engine Run Time

      Engine run time:

      Min.: 0 s, Max.: 65535 s

      		 Time after engine started Service data
      Initial Engine Coolant Temp

      Initial engine coolant temperature:

      Min.: -40°C, Max.: 120°C

      		 Engine coolant temperature when engine starts -
      Initial Intake Air Temp

      Initial intake air temperature:

      Min.: -40°C, Max.: 120°C

      		 Intake air temperature when engine starts -
      Battery Voltage

      Battery voltage:

      Min.: 0 V, Max.: 65.5 V

      		 Idling: 11 to 14 V -
      Accel Position

      Accelerator position status:

      Min.: 0%, Max.: 100%

      • Accelerator pedal released: 0%

      • Accelerator pedal depressed: 68 to 99.6%

      		 -
      Accel Sens. No. 1 Volt %

      Accelerator position No. 1:

      Min.: 0%, Max.: 100%

      • Accelerator pedal released: 12 to 20%

      • Accelerator pedal depressed: 56 to 72%

      		 -
      Accel Sens. No. 2 Volt %

      Accelerator position No. 2:

      Min.: 0%, Max.: 100%

      • Accelerator pedal released: 28 to 36%

      • Accelerator pedal depressed: 72 to 88%

      		 -
      Accel Sensor Out No. 1

      Accelerator position No. 1 voltage:

      Min.: 0 V, Max.: 5 V

      0.6 to 1.0 V: Accelerator pedal released

      2.8 to 3.6 V: Accelerator pedal fully depressed

      		 Read value with ignition switch to ON (Do not start engine)
      Accel Sensor Out No. 2

      Accelerator position No. 2 voltage:

      Min.: 0 V, Max.: 5 V

      1.4 to 1.8 V: Accelerator pedal released

      3.6 to 4.4 V: Accelerator pedal fully depressed

      		 Read value with ignition switch to ON (Do not start engine)
      Actual Throttle position

      Diesel throttle angle:

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

      		 Idling after warmed-up engine: 81 to 95% -
      Throttle Close learning Val.

      Throttle valve fully closed:

      Min.: 0 deg, Max.: 84 deg

      		 - -
      Diesel Throttle Learn Status

      Diesel throttle learning status:

      OK or NG

      		 OK -
      Throttle Motor DUTY

      Throttle actuator output :

      Min.: 0%, Max.: 100%

      		 Idling after warming up engine: 30 to 100% -
      Injection Volume

      Injection volume:

      Min.: 0 mm3/st, Max.: 1279.98 mm3/st

      Idling: 5.0 to 15.0 mm3/st

      		 -
      Inj. FB Vol. for Idle

      Idle stable control:

      Min.: -80 mm3/st, Max.: 79.99 mm3/st

      -10 to 10 mm3/st

      		 -
      Inj Vol Feedback Learning

      Injection volume feedback learning value:

      Min.: -10 mm3/st, Max.: 9.9 mm3/st

      Idling: -0.4 to 1.0 mm3/st

      		 -
      Injection Feedback Val #1

      Injection volume correction for cylinder 1:

      Min.: -10 mm3/st, Max.: 10 mm3/st

      Idling: -2.0 to 2.0 mm3/st

      		 -
      Injection Feedback Val #2

      Injection volume correction for cylinder 2:

      Min.: -10 mm3/st, Max.: 10 mm3/st

      Idling: -2.0 to 2.0 mm3/st

      		 -
      Injection Feedback Val #3

      Injection volume correction for cylinder 3:

      Min.: -10 mm3/st, Max.: 10 mm3/st

      Idling: -2.0 to 2.0 mm3/st

      		 -
      Injection Feedback Val #4

      Injection volume correction for cylinder 4:

      Min.: -10 mm3/st, Max.: 10 mm3/st

      Idling: -2.0 to 2.0 mm3/st

      		 -
      Pilot 1 Injection Period

      Pilot 1 Injection period:

      Min.: 0 μs, Max.: 65535 μs

      		 Idling after warming up engine: 0 μs -
      Pilot 2 Injection Period

      Pilot 2 Injection period:

      Min.: 0 μs, Max.: 65535 μs

      		 Idling: 500 to 600 μs -
      Main Injection Period

      Main Injection period:

      Min.: 0 μs, Max.: 65535 μs

      		 Idling: 650 to 800 μs -
      After Injection Period

      After Injection period:

      Min.: 0 μs, Max.: 65535 μs

      		 - -
      Pilot 1 Injection Timing

      Pilot 1 Injection timing:

      Min.: -70°CA, Max.: 20°CA

      		 - -
      Pilot 2 Injection Timing

      Pilot 2 Injection timing:

      Min.: -50°CA, Max.: 20°CA

      		 Idling: -8 to -6°CA -
      Main Injection Timing

      Main Injection timing:

      Min.: -90°CA, Max.: 90°CA

      		 Idling: -1 to 1°CA -
      After Injection Timing

      After Injection timing:

      Min.: -10°CA, Max.: 50°CA

      		 - -
      Injector Memory Error

      Injector Memory Error:

      No Error or Error

      		 No Error If the injector compensation codes are not input into the new ECM, or if a 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".
      Injection Pressure Correction

      Injection pressure correction:

      Min.: -500 mm3/st, Max.: 779.9 mm3/st

      -400 to 400 mm3/st

      		 -
      Target Common Rail Pressure

      Target common rail pressure:

      Min.: 0 kPa, Max.: 655350 kPa

      		 Idling: 25000 to 35000 kPa -
      Fuel Press

      Fuel pressure:

      Min.: 0 kPa, Max.: 655350 kPa

      		 Idling: 25000 to 35000 kPa -
      Fuel Temperature

      Fuel temperature:

      Min.: -40°C, Max.: 215°C

      		 Actual fuel temperature -
      Target Pump SCV Current

      Pump open current value:

      Min.: 0 mA, Max.: 8191.8 mA

      		 Idling: 800 to 1400 mA ECD freeze frame data
      Target EGR Position

      Target EGR position:

      Min.: 0%, Max.: 100%

      		 Idling: 35 to 65% -
      EGR Lift Sensor Volt%

      EGR lift position:

      Min.: 0%, Max.: 100%

      		 Idling 70 to 90% -
      EGR Close Learn Val.

      EGR valve leaning value:

      Min.: 0 V, Max.: 5 V

      		 0.15 to 0.45 V -
      EGR Close Lrn. Val.

      EGR close learning value:

      Min.: 0 V, Max.: 5 V

      		 3.5 to 4.5 V -
      EGR Close Lrn. Status

      EGR learning status:

      OK or NG

      		 OK -
      VN Turbo Command

      VN turbo command:

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

      		 - -
      VN Turbo Type

      VN turbo type:

      Not Avl, Commo, Vacuum or CAN Com

      		 CAN Com -
      VN Turbo Max angle

      VN turbo maximum angle :

      Min.: 0%, Max.: 100%

      		 100% -
      VN Turbo Min angle

      VN turbo minimum angle :

      Min.: 0%, Max.: 100%

      		 7.5% -
      Exhaust Temperature B1S1

      Exhaust gas temperature sensor for sensor 1 (upstream):

      Min.: -40°C, Max.: 1000°C

      Idling: 50 to 150°C (122 to 302°F)

      Idling after driving: 80 to 400°C (176 to 752°F)

      If -40°C (-40°F), sensor circuit is open

      If 1000°C (1832°F), sensor circuit is shorted
      Exhaust Temperature B1S2

      Exhaust gas temperature sensor for sensor 2 (downstream):

      Min.: -40°C, Max.: 1000°C

      Idling: 50 to 150°C (122 to 302°F)

      Idling after driving: 80 to 400°C (176 to 752°F)

      If -40°C (-40°F), sensor circuit is open

      If 1000°C (1832°F), sensor circuit is shorted
      DPF Differential Pressure

      DPF differential pressure:

      Min.: -5 kPa, Max.: 100 kPa

      		 -3 kPa to 3 kPa -
      Diff. Press. Sensor Corr.

      Differential pressure correction:

      Min.: -10 kPa, Max.: 246 kPa

      		 Idling: -1.5 to 1.5 kPa -
      DPF PM Block

      DPF particulate matter (PM) Block:

      No Block or Blocked

      		 No Block -
      DPNR/DPF Status Reju (PM)

      Result of DPF catalyst regeneration (PM):

      Standby, Ready, Operate or Compl

      		 Operate: DPF catalyst regeneration operate -
      Catalyst Regeneration Switch

      DPF switch status:

      ON or OFF

      		 ON: DPF switch on -
      Exhaust Brake Switch

      Exhaust brake switch status:

      ON or OFF

      		 ON: Exhaust brake operated -
      Starter Signal

      Starter signal:

      ON or OFF

      		 ON: Cranking -
      Clutch Switch

      Exhaust retarder switch status:

      ON or OFF

      		 ON: Exhaust retarder switch on -
      Stop Light Switch

      Stop light switch status:

      ON or OFF

      • ON: Brake pedal depressed

      • OFF: Brake pedal released

      		 -
      A/C Signal

      Air conditioning signal:

      ON or OFF

      		 ON: Air conditioning operate -
      Check Mode

      Check mode:

      ON or OFF

      		 ON: Check mode on

      Click here

      SPD Test Result

      Check mode result for vehicle speed sensor:

      Compl or Incmpl

      		 Compl -
      Complete Parts Monitor

      Comprehensive component monitor:

      Not Avl or Avail

      		 - -
      Fuel System Monitor

      Fuel system monitor:

      Not Avl or Avail

      		 - -
      Misfire Monitor

      Misfire monitor:

      Not Avl or Avail

      		 - -
      EGR/VVT Monitor

      EGR/VVT monitor:

      Not Avl or Avail

      		 - -
      EGR/VVT Monitor

      EGR/VVT monitor:

      Compl or Incmpl

      		 - -
      O2S (A/FS) Heater Monitor

      O2S (A/FS) heater monitor:

      Not Avl or Avail

      		 - -
      O2S (A/FS) Heater Monitor

      O2S (A/FS) heater monitor:

      Compl or Incmpl

      		 - -
      O2S (A/FS) Monitor

      O2S (A/FS) monitor:

      Not Avl or Avail

      		 - -
      O2S (A/FS) Monitor

      O2S (A/FS) monitor:

      Compl or Incmpl

      		 - -
      A/C Monitor

      Air conditioning monitor:

      Not Avl or Avail

      		 - -
      A/C Monitor

      Air conditioning monitor:

      Compl or Incmpl

      		 - -
      2nd Air Monitor

      2nd air monitor:

      Not Avl or Avail

      		 - -
      2nd Air Monitor

      2nd air monitor:

      Compl or Incmpl

      		 - -
      EVAP Monitor

      EVAP monitor:

      Not Avl or Avail

      		 - -
      EVAP Monitor

      EVAP monitor:

      Compl or Incmpl

      		 - -
      Heated Catalyst Monitor

      Heated catalyst monitor:

      Not Avl or Avail

      		 - -
      Heated Catalyst Monitor

      Heated catalyst monitor:

      Compl or Incmpl

      		 - -
      Catalyst Monitor

      Catalyst monitor:

      Not Avl or Avail

      		 - -
      Catalyst Monitor

      Catalyst monitor:

      Compl or Incmpl

      		 - -
      # Codes (Include History)

      Number of codes:

      Min.: 0, Max.: 255

      		 - Number of detected DTCs
      MIL

      MIL status:

      ON or OFF

      		 ON: MIL ON -
      MIL ON Run Distance

      MIL ON run distance:

      Min.: 0 km, Max.: 65535 km

      		 Distance after DTC detected -
      Running Time from MIL ON

      Running time from MIL on:

      Min.: 0 min, Max.: 65535 min

      		 Equivalent to running time after MIL was on -
      Time After DTC Cleared

      Time after DTC cleared:

      Min.: 0 min, Max.: 65535 min

      		 Equivalent to time after DTCs were erased -
      Distance from DTC Cleared

      Distance after DTC cleared:

      Min.: 0 km, Max.: 65535 km

      		 Equivalent to drive distance after DTCs were erased -
      Warmup Cycle Cleared DTC

      Warm up cycle after DTC cleared:

      Min.: 0, Max.: 255

      		 - Number of warm up cycles after DTC cleared
      OBD Requirements Identifying OBD requirement EURO 5 -
      Number of Emission DTC (Number of emission DTC) - -
      TC and TE1

      TC and TE1 terminal of DLC3:

      ON or OFF

      		 - -
      PTO Switch

      Power take-off switch status:

      ON or OFF

      		 Unused -
      Engine Warm Up Switch

      Warm up switch status:

      ON or OFF

      		 ON: Warm up switch on -
      ACT VSV

      Air conditioning cut signal:

      ON or OFF

      		 - -
      Model Code Model code - Identifying model code: XZU40
      Engine Type Engine type - Identifying engine type: N04CUH
      Cylinder Number

      Identifying cylinder number:

      Min.: 0, Max.: 255

      		 - Identifying cylinder number: 4
      Transmission Type Transmission type - Identifying transmission type: MT
      Destination Destination - Identifying destination: W
      Model Year

      Identifying model year:

      Min.: 1900, Max.: 2155

      		 - Identifying model year: 20##
      System Identification Identifying engine system - Identifying engine system: Diesel
      Target Engine Speed

      Target engine speed:

      Min.: 0 rpm, Max.: 5000 rpm

      		 Idling: 600 to 700 rpm -
      Target Common Rail Press

      Target common rail pressure:

      Min.: 0 MPa, Max.: 256 MPa

      		 Idling: 30 to 32 MPa -
      Catalyst Warm Up Malfunction

      Catalyst warm up malfunction:

      ON or OFF

      		 OFF -
      Manual Catalyst Regeneration

      Manual catalyst regeneration status:

      ON or OFF

      		 OFF -
      Pump Mode

      Injection or supply pump assembly control mode:

      PCV, DUTY, IG OFF, STOP or Normal

      		 - -
      Catalyst Malfunction

      Catalyst malfunction (differential pressure detection):

      ON or OFF

      		 OFF -
      Clogged Catalyst

      Clogged catalyst (differential pressure detection):

      ON or OFF

      		 OFF -
      Heat Catalyst

      Catalyst temperature malfunction:

      ON or OFF

      		 OFF -
      Clogged Catalyst Warning

      Clogged catalyst warning status:

      SAFE, Danger or Warning

      		 SAFE -
      Catalyst Deteriorate

      DPF catalyst deteriorate:

      ON or OFF

      		 OFF -
      Exhaust Fuel Addition

      Exhaust fuel addition malfunction:

      ON or OFF

      		 OFF -
      DPF Mode

      DPF mode:

      Undef, Normal, N/EGR, Warm, Warm/Idl, PM, PM/Idl or Dchg

      		 Normal -
      Injection Pump Learning Status

      Injection pump learning status:

      Compl or Incmpl

      		 Compl -
      VN Turbo Valve Position

      Turbocharger opening value:

      Min.: 0% Max.: 100%

      		 - -
      PCV Open Duty

      Suction control valve open duty:

      Min.: 0% Max.: 100%

      		 45 to 55% -
      PCV Open Current FB Val

      Suction control valve open current feedback volume:

      Min.: -6000 mA, Max.: 6000 mA

      		 -400 to 400 mA -
      Intake Water History

      Water intake history:

      ON or OFF

      		 OFF -
      Engine Overspeed History

      Engine overspeed history:

      ON or OFF

      		 OFF -
      Accel Sensor Position

      Accel sensor position (for power take-off):

      Min.: 0% Max.: 100%

      		 Unsned -
      Accel Sensor Voltage

      Accel sensor voltage (for power take-off):

      Min.: 0 V, Max.: 5 V

      		 Unsned -
      Throttle Knob Voltage

      Throttle knob voltage

      Min.: 0 V, Max.: 5 V

      		 Unsned -

      Tech Tips

      Normal Condition: If no idling conditions are specified, the shift lever is in the neutral position, and the A/C switch and all accessory switches are off.

  2. PERFORM ACTIVE TEST

    Tech Tips

    Using the intelligent tester to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.


    1. Warm up the engine.

    2. Turn the ignition switch off.

    3. Replace the normal DLC3 cable (12 V specification) for the intelligent tester with the 24 V DLC3 cable.

      Note

      Be sure to use the 24 V DLC3 cable when connecting the intelligent tester to the DLC3. Using the normal DLC3 cable (12 V specification) will cause damage to the tester.

    4. Connect the intelligent tester to the DLC3.

    5. Turn the ignition switch to ON.

    6. Turn the tester on.

    7. Enter the following menus: Powertrain / Engine and ECT / Active Test.

    8. According to the display on the tester, perform the "Active Test".

      Tester Display Test Part Control Range Diagnostic Notes
      Control the A/C Cut Signal Control the air conditioning cut signal ON or OFF

      Test possible when following conditions met:


      • Ignition switch ON

      • Engine stopped
      Connect the TC and TE1 Turn on TC and TE1 connection ON or OFF

      Test possible when following conditions met:


      • Ignition switch ON

      • Engine stopped
      Control the EGR Step Position Control the EGR valve step position 0 to 100% -
      Activate the DPF Rejuvenate (PM) DPF catalyst regeneration (PM) raises temperature of DPF to more than 600°C (1112°F) by adding fuel intermittently ON or OFF

      Test possible when following conditions met:


      • Warm up the engine

      • Engine idling
      Test the Turbo Charger Step Motor Control the tarbocharger actuator 40 to 100% -
      Test the Fuel Leak Pressurizes common rail internal fuel pressure, and checks for fuel leaks Stop or Start

      • Fuel pressure inside common rail pressurized to specified value and engine speed increased to 2000 rpm when Start is selected

      • Above conditions preserved while test is Start
      Control the Cylinder#1 Fuel Cut Cut off fuel injection from No. 1 injector assembly ON or OFF

      Fuel injection is stopped while the test is ON.


      • Confirm that the vehicle is stopped and the engine is idling.

      • If the running condition of the engine does not worsen even though injection of the designated cylinder is stopped, the cylinder can be confirmed to be malfunctioning
      Control the Cylinder#2 Fuel Cut Cut off fuel injection from No. 2 injector assembly ON or OFF

      Fuel injection is stopped while the test is ON.


      • Confirm that the vehicle is stopped and the engine is idling.

      • If the running condition of the engine does not worsen even though injection of the designated cylinder is stopped, the cylinder can be confirmed to be malfunctioning
      Control the Cylinder#3 Fuel Cut Cut off fuel injection from No. 3 injector assembly ON or OFF

      Fuel injection is stopped while the test is ON.


      • Confirm that the vehicle is stopped and the engine is idling.

      • If the running condition of the engine does not worsen even though injection of the designated cylinder is stopped, the cylinder can be confirmed to be malfunctioning
      Control the Cylinder#4 Fuel Cut Cut off fuel injection from No. 4 injector assembly ON or OFF

      Fuel injection is stopped while the test is ON.


      • Confirm that the vehicle is stopped and the engine is idling.

      • If the running condition of the engine does not worsen even though injection of the designated cylinder is stopped, the cylinder can be confirmed to be malfunctioning
      Control the All Cylinders Fuel Cut Injector fuel cut for all cylinders ON or OFF Fuel injection stops in all cylinders
      Activate the VSV for Exhaust Brake Activate the solenoid valve for exhaust brake ON or OFF -