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 P0384-00 being current on the CONSULT screen.
Is DTC P0384-00 detected as current?

YES

GO TO 2 .

NO

Refer to Intermittent Incident .
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:
  - P0562-00
  - P0563-00
  - P0686-00
  - P0687-00
  - P2503-00
  - P2504-00
Is applicable DTC detected?

YES

Refer to DTC Index .

NO

GO TO 3 .
INSPECT GLOW PLUG CONTROL MODULE AND CONNECTOR PINS
1. Turn ignition switch OFF.
2. Disconnect glow plug control module harness connector F102.
3. Inspect the harness connector and glow plug control module 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 THE GLOW PLUG CONTROL MODULE VOLTAGE

Turn ignition switch OFF.
Disconnect the glow plug control module harness connector E69.
Turn ignition switch ON.

Measure the voltage between glow plug control module harness connector E69 terminal 1 and ground.

Glow plug control module

Voltage

(Approx.)

Connector

Terminal

E69

Ground

> 16.5V

Is the inspection result normal?

YES

GO TO 6 .

GO TO 5 .

CHECK THE CIRCUIT RESPONSE
1. Turn ignition switch OFF.
2. Connect the glow plug control module connectors.
3. Turn ignition switch ON.
4. Connect CONSULT and check for current ENGINE diagnostic trouble codes.
Is DTC P0384-00 current?

YES

Replace glow plug control module. Refer to Removal and Installation .

NO

The removal and installation of the connector corrected the fault.
CHECK THE BATTERY VOLTAGE
1. Turn ignition switch OFF.
2. Measure the voltage of the battery.
Is the battery voltage > 16.5V?

YES

Troubleshoot the cause of the overcharging condition. Refer to Work Flow (With EXP-800 NI or GR8-1200 NI) (with Cummins 5.0L) or Work Flow (Without EXP-800 NI or GR8-1200 NI) (with Cummins 5.0L) .

NO

Inspection End.