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 DTC P0111-00 being current on the CONSULT screen.
Is applicable DTC detected?

YES

GO TO 2 .

NO

Refer to Intermittent Incident .
CHECK DTC PRIORITY
Check for DTC P0112-00 or P0113-00 being current on the CONSULT screen.

Is applicable DTC detected?

YES

Refer to DTC Index .

NO

GO TO 3 .
CHECK DATA MONITOR
1. Check intake manifold temperature Data Monitor item on the CONSULT screen.
2. Compare intake manifold temperature to the ambient air temperature.
Is the reading within 5.6°C (10°F) of each other?

YES

GO TO 4 .

NO

Replace the intake manifold temperature sensor. Refer to Removal and Installation .
INSPECT INTAKE MANIFOLD TEMPERATURE SENSOR AND CONNECTOR PINS
1. Turn ignition switch OFF.
2. Disconnect intake manifold temperature sensor connector F143.
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 5 .

NO

Repair or replace error-detected parts.
CHECK DTC PRIORITY
1. Intake manifold temperature sensor connector F143 remains disconnected.
2. Turn ignition switch ON.
3. Check for DTC P0113-00 being current on the CONSULT screen after 30 seconds.
Is applicable DTC detected?

YES

GO TO 6 .

NO

GO TO 7 .
CHECK DTC PRIORITY
1. Turn ignition switch OFF.
2. Connect a jumper wire between terminals 1 and 2 of the intake manifold temperature sensor connector F143.
3. Turn ignition switch ON.
4. Check for DTC P0112 being current on the CONSULT screen after 30 seconds.
Is applicable DTC detected?

YES

Replace the intake manifold temperature sensor. Refer to Removal and Installation .

NO

GO TO 7 .
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 P0113-00 being current 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 a jumper wire between terminals 170 and 195 of the ECM connector F101.
3. Turn ignition switch ON.
4. Check for DTC P0112-00 being current on the CONSULT screen after 30 seconds.
Is applicable DTC detected?

YES

Refer to Intermittent Incident .

NO

Replace the ECM. Refer to Removal and Installation .