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.

CHECK DTC PRIORITY
1. Turn ignition switch ON.
2. Connect CONSULT and check for ENGINE diagnostic trouble codes.
3. Check for any sensor supply DTCs being current on the CONSULT screen.
Is applicable DTC detected?

YES

Refer to DTC Index .

NO

GO TO 2 .
CHECK DTC PRIORITY
Check for DTC P0107-00 being past on the CONSULT screen.

Is applicable DTC detected?

YES

Refer to Intermittent Incident .

NO

GO TO 3 .
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 connector F140.
3. Inspect the harness and sensor 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 4 .

NO

Repair or replace error-detected parts.
CHECK DTC PRIORITY
1. Engine charge air cooler outlet pressure/temperature sensor connector F140 remains disconnected.
2. Turn ignition switch ON.
3. Check for DTC P0108-00 being current and DTC P0107-00 being past on the CONSULT screen after 30 seconds.
Are applicable DTCs detected?

YES

GO TO 5 .

NO

GO TO 7 .

CHECK SENSOR SUPPLY VOLTAGE

Check voltage between the terminals of the engine charge air cooler outlet pressure/temperature sensor connector F140.

Engine charge air cooler outlet pressure/temperature sensor connector F140		Condition	Voltage
Terminal	Terminal
2	4	Ignition switch ON	4.75V - 5.25V

Is the inspection result normal?

YES

GO TO 6 .

GO TO 10 .

CHECK DTC PRIORITY
1. Turn ignition switch OFF.
2. Connect engine charge air cooler outlet pressure/temperature sensor connector F140.
3. Turn ignition switch ON.
4. Check for DTC P0107-00 being current on the CONSULT screen after 30 seconds.
Is applicable DTC detected?

YES

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

NO

Refer to Intermittent Incident .
INSPECT ECM AND CONNECTOR PINS
1. Turn ignition switch OFF.
2. Disconnect ECM connector F101.
3. Inspect the harness and module 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 8 .

NO

Repair or replace error-detected parts.
CHECK DTC PRIORITY
1. ECM connector F101 remains disconnected.
2. Turn ignition switch ON.
3. Check for DTC P0108-00 being current and DTC P0107-00 being past on the CONSULT screen after 30 seconds.
Is applicable DTC detected?

YES

GO TO 9 .

NO

Replace the ECM. Refer to Removal and Installation .
CHECK DTC PRIORITY
1. Turn ignition switch OFF.
2. Connect all components.
3. Turn ignition switch ON.
4. Check for DTC P0107 being past on the CONSULT screen after 30 seconds.
Is applicable DTC detected?

YES

Refer to Intermittent Incident .

NO

A pin to pin short circuit has been detected on the signal circuit of the engine harness. Repair or replace the engine harness.
INSPECT ECM AND CONNECTOR PINS
1. Turn ignition switch OFF.
2. Disconnect ECM connector F101.
3. Inspect the harness and module 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 11 .

NO

Repair or replace error-detected parts.

CHECK SENSOR SUPPLY VOLTAGE

ECM connector F101 remains disconnected.
Turn ignition switch ON.

Check voltage between the terminals of the engine charge air cooler outlet pressure/temperature sensor connector F140.

Engine charge air cooler outlet pressure/temperature sensor connector F140		Condition	Voltage
Terminal	Terminal
2	4	Ignition switch ON	4.75V - 5.25V

Is the inspection result normal?

YES

GO TO 12 .

Replace the ECM. Refer to Removal and Installation .

CHECK DTC PRIORITY
1. Turn ignition switch OFF.
2. Connect all components.
3. Turn ignition switch ON.
4. Check for DTC P0107 being past on the CONSULT screen after 30 seconds.
Is applicable DTC detected?

YES

Refer to Intermittent Incident .

NO

An open has been detected on the return circuit of the engine harness. Repair or replace the engine harness.