Diagnosis Procedure

1. Turn ignition switch ON.
2. Connect CONSULT and check for "ENGINE" diagnostic trouble codes.
3. Check for sensor supply DTC U0106-00 being current on the CONSULT screen.

Is applicable DTC detected?

YES

Refer to DTC Description .

NO

GO TO 2 .

1. Turn ignition switch ON.
2. Connect CONSULT and check for "ENGINE" diagnostic trouble codes.
3. Check for DTC P06E5-00 being current on the CONSULT screen.

Is DTC P06E5-00 detected as current?

YES

GO TO 3 .

NO

Refer to Intermittent Incident .

1. Turn ignition switch OFF.
2. Disconnect the glow plug control module from engine harness connector.
3. Inspect the glow plug control 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 4 .

NO

• Repair or replace error-detected parts.
• GO TO 7 .

1. Turn ignition switch ON.
2. Check the voltage between the glow plug control module ignition voltage supply circuit and ground circuit.
   NOTE: Check the voltage while cranking the engine, and with the engine at idle.

   Glow plug control module			Voltage (V) (Approx.)
   Connector	Terminal (+)	Terminal (-)
   F102	7	6	Battery voltage

Is the inspection result normal?

YES

GO TO 6 .

NO

GO TO 5 .

Check the voltage between the glow plug control module ignition voltage supply circuit and engine block.

Is the inspection result normal?

YES

• A malfunction has been detected in the ground supply circuit. Repair or replace engine harness as necessary.
• GO TO 7 .

NO

• A malfunction has been detected in the ignition supply circuit. Repair or replace engine harness as necessary.
• GO TO 7 .

1. Turn ignition switch OFF.
2. Reconnect the glow plug control module connector.
3. Turn ignition switch ON.
4. Turn ignition switch OFF, and wait 5 seconds.
5. Start the engine and let it idle for 1 minute.
6. Connect CONSULT and check for current "ENGINE" diagnostic trouble codes.

Did P064C-00 DTC become "Current"?

YES

• A malfunctioning glow plug control module has been detected. Replace the glow plug control module. Refer to Removal and Installation .
• GO TO 7 .

NO

• The removal and installation of the connector corrected the malfunction.
• GO TO 7 .

1. Turn ignition switch OFF.
2. Connect all harness connectors.
3. Turn ignition switch ON.
4. Using CONSULT, select "ENGINE" and erase DTCs.
5. Operate the engine within the "Conditions for Clearing the DTC".

Is P06E5-00 DTC current?

YES

Diagnosis procedure needs to be repeated. Refer to DTC Description .

NO

Repair complete.