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 FOR ACTIVE DTC
1. Turn ignition switch ON.
2. Connect CONSULT and check for other existing ENGINE diagnostic trouble codes.
3. Check for DTC P0112-00 being current on the CONSULT screen.
Is applicable DTC current?

YES

GO TO 2 .

NO

Refer to Intermittent Incident .
INSPECT INTAKE MANIFOLD TEMPERATURE SENSOR AND CONNECTOR PINS
1. Turn ignition switch OFF.
2. Disconnect intake manifold temperature sensor from engine harness connector.
3. Inspect intake manifold temperature 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 3 .

NO

Repair or replace error-detected parts.
CHECK THE CIRCUIT RESPONSE
1. Turn ignition switch OFF.
2. Disconnect the intake manifold temperature sensor from the engine harness.
3. Turn key ON and wait 30 seconds.
4. Connect CONSULT and check for current ENGINE diagnostic trouble codes.
Did P0113-00 DTC become current and P0112-00 DTC become past?

YES

GO TO 4 .

NO

GO TO 5 .
CHECK THE CIRCUIT RESPONSE
1. Turn ignition switch OFF.
2. Reconnect the intake manifold temperature sensor connector.
3. Turn key ON and wait 30 seconds.
4. Connect CONSULT and check for current ENGINE diagnostic trouble codes.
Did P0112-00 DTC become current?

YES

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

NO

The removal and installation of the connector corrected the issue.
INSPECT ECM AND ENGINE HARNESS CONNECTOR PINS
1. Turn ignition switch OFF.
2. Disconnect ECM connector F101 from engine harness connector.
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 6 .

NO

Repair or replace error-detected parts.
CHECK THE ECM RESPONSE
1. Turn ignition switch ON and wait 30 seconds.
2. Connect CONSULT and check for current ENGINE diagnostic trouble codes.
Did P0113-00 DTC become current and P0112-00 DTC become past?

YES

GO TO 7 .

NO

Replace the ECM. Refer to Removal and Installation .

CHECK INTAKE MANIFOLD TEMPERATURE SENSOR SIGNAL CIRCUIT CONNECTOR FOR SHORT

Turn ignition switch OFF.
Disconnect ECM.
Check the continuity between intake manifold temperature sensor signal and all other circuits at ECM harness connector.

ECM			Continuity
Connector	Terminal	Terminal	Continuity
F101	195	All others	No

Is the inspection result normal?

YES

GO TO 8 .

Repair short circuit in harness connector.

CHECK INTAKE MANIFOLD TEMPERATURE SENSOR SIGNAL CIRCUIT FOR SHORT

Check the continuity between intake manifold temperature sensor harness connector and ground.

ECM		Ground	Continuity
Connector	Terminal
F101	195	-	No

Is the inspection result normal?

YES

GO TO 9 .

Repair short circuit in harness or connectors.

CHECK FOR CURRENT DTC
1. Connect all disconnected harness connectors.
2. Turn ignition switch ON and wait 30 seconds.
3. Connect CONSULT and check for ENGINE diagnostic trouble codes.
Is P0112-00 DTC CURRENT?

YES

The troubleshooting procedure needs to be repeated. Refer to DTC Description .

NO

The removal and installation of the connector corrected the issue.