Diagnosis Procedure

1. Turn ignition switch ON.
2. Connect CONSULT and check for ENGINE diagnostic trouble codes.
3. Are any of the following displayed as current or have high past counts on the CONSULT screen:
   • P009C-00
   • P009D-00
   • P0191-00
   • P0192-00
   • P0193-00
   • P0252-00
   • P0253-00
   • P0254-00
   • P0257-00
   • P0686-00
   • P0687-00
   • P2540-00

Is applicable DTC detected?

YES

Refer to DTC Index .

NO

GO TO 2 .

1. Turn ignition switch OFF.
2. Disconnect fuel rail pressure sensor harness connector F139.
3. Inspect the engine harness and fuel rail 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.

1. Turn ignition switch OFF.
2. Check for fuel filter restriction.
3. Turn ignition switch ON and wait 30 seconds.
4. Connect CONSULT and check for current ENGINE diagnostic trouble codes.

Is the inspection result normal?

YES

GO TO 4 .

NO

Replace stage 1 and 2 fuel filters. Refer to Removal and Installation and Removal and Installation .

1. Turn ignition switch ON.
2. Using CONSULT, perform High-Pressure Fuel System Actuator Override test.

Are actuators within specifications?

YES

GO TO 5 .

NO

Repair or replace error-detected parts.

1. Turn ignition switch OFF.
2. Disconnect fuel rail pressure sensor harness connector F139.
3. Inspect the engine harness and fuel rail 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 6 .

NO

Repair or replace error-detected parts.

1. Turn ignition switch OFF.
2. Disconnect fuel rail pressure sensor harness connector F139.
3. Start engine and idle for 30 seconds.
4. Connect CONSULT and check for current ENGINE diagnostic trouble codes.

Is DTC P0193-00 current?

YES

GO TO 7 .

NO

GO TO 8 .

1. Turn ignition switch OFF.
2. Connect a jumper wire between fuel rail pressure sensor harness connector F139 terminal 1 and 2.
3. Turn ignition switch ON and wait 30 seconds.
4. Connect CONSULT and check for current ENGINE diagnostic trouble codes.

Is DTC P0192-00 current?

YES

Replace the fuel rail pressure sensor. Refer to Removal and Installation .

NO

GO TO 8 .

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector F101.
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 9 .

NO

Repair or replace error-detected parts.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector F101.
3. Turn ignition switch ON and wait 30 seconds.
4. Connect CONSULT and check for current ENGINE diagnostic trouble codes.

Is DTC P0193-00 current?

YES

GO TO 10 .

NO

Replace ECM. Refer to Removal and Installation .

1. Turn ignition switch OFF.
2. Connect a jumper wire between ECM harness connector F101 terminal 128 and 171.
3. Turn ignition switch ON and wait 30 seconds.
4. Connect CONSULT and check for current ENGINE diagnostic trouble codes.

Is DTC P0192-00 current?

YES

Repair or replace the engine harness.

NO

Replace ECM. Refer to Removal and Installation .