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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 211 (Engine Control System (DTC/Circuit Diagnosis) (CUMMINS 5.0L) (1 Of 6)) >> DTC/Circuit Diagnosis >> DTC P007B-00: Charge Air Cooler Temperature Sensor >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC PRIORITY 
    1. Turn ignition switch ON.
    2. Connect CONSULT and check for ENGINE diagnostic trouble codes.
    3. Check for DTC P007B-00 being current on the CONSULT screen.

    Is DTC P007B-00 detected as current?

    YES

    GO TO 2 .

    NO

    Refer to Intermittent Incident .

  2. CHECK DTC PRIORITY 
    1. Turn ignition switch ON.
    2. Connect CONSULT and check for ENGINE diagnostic trouble codes.
    3. Are any of the following displayed as current on the CONSULT screen:
      • P007C-00
      • P007D-00
      • Any turbocharger DTCs
      • P0237-00
      • P0238-00
      • P1191-00
      • P1192-00
      • P1193-00
      • P22CB-00
      • P22CC-00
      • P22CD-00
      • P22CE-00

    Is applicable DTC detected?

    YES

    Refer to DTC Index .

    NO

    GO TO 3 .

  3. CHECK CHARGE AIR COOLER OUTLET TEMPERATURE SENSOR 
    1. Turn ignition switch ON.
    2. Connect CONSULT and select "Data Monitor" mode.
    3. Select "CHARGE AIR COOLER OUTLET TEMPERATURE SENSOR" and check the indication.
    4. Compare engine charge air cooler outlet pressure/temperature sensor reading to ambient air temperature.

      Monitor item

      Condition

      Indication

      CHARGE AIR COOLER OUTLET TEMPERATURE SENSOR

      Ignition switch ON (Engine stopped.)

      Within 5.6C (10F) of ambient air temperature

    Is the inspection result normal?

    YES

    GO TO 4 .

    NO

    Replace engine charge air cooler outlet pressure/temperature sensor. Refer to Removal and Installation .

  4. INSPECT CHARGE AIR COOLER 

    Inspect the charge-air cooler:

    • Inspect the charge-air cooler for cracks, holes, and other damage.
    • Inspect the tubes, fins, and welds for tears, breaks, or other damage.

    Is the inspection result normal?

    YES

    GO TO 5 .

    NO

    Replace charge air cooler. Refer to Removal and Installation .

  5. INSPECT ENGINE CHARGE AIR COOLER OUTLET PRESSURE/TEMPERATURE SENSOR AND CONNECTOR PINS 
    1. Turn ignition switch OFF.
    2. Disconnect engine charge air cooler outlet pressure/temperature sensor harness connector F140.
    3. Inspect the harness connector and engine charge air cooler outlet pressure/temperature sensor pins for the following:
      • Loose connector
      • Corroded pins
      • Bent or broken pins
      • Pushed back or expanded pins
      • Moisture in or on the connector
      • Missing or damaged connector seals
      • Dirt or debris on or in the connector pins
      • Connector shell broken
      • Wire insulation damage
      • Damaged connector locking tab

    Is the inspection result normal?

    YES

    GO TO 6 .

    NO

    Repair or replace error-detected parts.

  6. CHECK THE CIRCUIT RESPONSE 
    1. Turn ignition switch OFF.
    2. Disconnect engine charge air cooler outlet pressure/temperature sensor harness connector F140.
    3. Turn ignition switch ON and wait 30 seconds.
    4. Connect CONSULT and check for current ENGINE diagnostic trouble codes.

    Did P007D-00 DTC become current?

    YES

    GO TO 7 .

    NO

    GO TO 8 .

  7. CHECK THE CIRCUIT RESPONSE 
    1. Turn ignition switch OFF.
    2. Connect a jumper wire between engine charge air cooler pressure/temperature sensor harness connector F140 terminal 3 and 4.
    3. Turn ignition switch ON and wait 30 seconds.
    4. Connect CONSULT and check for current ENGINE diagnostic trouble codes.

    Did P007C-00 DTC become current?

    YES

    Replace engine charge air cooler outlet pressure/temperature sensor. Refer to Removal and Installation .

    NO

    GO TO 8 .

  8. INSPECT ECM AND HARNESS CONNECTOR PINS 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector F101.
    3. Inspect the ECM connector pins for the following:
      • Loose connector
      • Corroded pins
      • Bent or broken pins
      • Pushed back or expanded pins
      • Moisture in or on the connector
      • Missing or damaged connector seals
      • Dirt or debris on or in the connector pins
      • Connector shell broken
      • Wire insulation damage
      • Damaged connector locking tab.

    Is the inspection result normal?

    YES

    GO TO 9 .

    NO

    Repair or replace error-detected parts.

  9. CHECK THE ECM RESPONSE 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector F101.
    3. Turn ignition switch ON.
    4. Connect CONSULT and check for current ENGINE diagnostic trouble codes.

    Did P007D-00 DTC become current?

    YES

    GO TO 10 .

    NO

    Replace ECM. Refer to Removal and Installation .

  10. CHECK THE ECM RESPONSE 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector F101.
    3. Connect a jumper wire between ECM harness connector F101 terminal 110 and 127.
    4. Turn ignition switch ON.
    5. Connect CONSULT and check for current ENGINE diagnostic trouble codes.

    Did P007C-00 DTC become current?

    YES

    Repair or replace engine harness.

    NO

    Replace ECM. Refer to Removal and Installation .

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