DTC Logic

DTC DETECTION LOGIC

NOTE

:
If DTC P0002 is displayed with DTC P0087, P0089, P0090 or P0190, first perform trouble diagnosis for DTC P0087, P0089, P0090 or P0190. Refer to EC-895, "DTC Logic" (DTC P0087), EC-897, "DTC Logic" (DTC P0089), EC-899, "DTC Logic" (DTC P0090) or EC-917, "DTC Logic" (DTC P0190).

Diagnosis Procedure

1.CHECK LOW PRESSURE FUEL SUPPLY SYSTEM

Refer to EC-867, "Work Procedure (TEST 1: Low Pressure Fuel Supply System Check)".

Is the inspection result normal? OK >> GO TO 2.

NG >> Replace or replace. Then GO TO 9.

2.CHECK INTERNAL FUEL TRANSFER PUMP

Refer to EC-868, "Work Procedure (TEST 2: Internal Fuel Transfer Pump Check)".

Is the inspection result normal? OK >> GO TO 3.

NG >> Replace or replace. Then GO TO 9.

3.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)

Refer to EC-868, "Work Procedure [TEST 3: High Pressure Supply Pump (Pressure Control Valve) Check]".

Is the inspection result normal? OK >> GO TO 4.

NG >> Replace or replace. Then GO TO 9.

4.CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)

Refer to EC-869, "Work Procedure [TEST 4: High Pressure Supply Pump (Volumetric Control Valve) Check]".

Is the inspection result normal? OK >> GO TO 5.

NG >> Replace or replace. Then GO TO 9.

5.CHECK RAIL HIGH PRESSURE REGULATION

Refer to EC-871, "Work Procedure (TEST 5: Rail High Pressure Regulation Check)".

Is the inspection result normal? OK >> GO TO 6.

NG >> Replace or replace. Then GO TO 9.

6.CHECK MAJOR LEAK IN FUEL INJECTORS/FUEL INJECTORS OPEN

Refer to EC-876, "Work Procedure (TEST 6: Fuel Injectors Leak Check)".

Is the inspection result normal? OK >> GO TO 7.

NG >> Replace or replace. Then GO TO 9.

7.CHECK INCORRECT FUEL INJECTION QUANTITY

Refer to EC-877, "Work Procedure (TEST 7: Fuel Injection Quantity Check)".

Is the inspection result normal? OK >> GO TO 8.

NG >> Replace or replace. Then GO TO 9.

8.CHECK INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident", ???INCIDENT SIMULATION TESTS??? and ???GROUND INSPECTION???.

Is the inspection result normal? YES >> INSPECTIO END.

NO >> Repair or replace. Then GO TO 9.

9.CLEAR PRESSURE REGULATION

Perform ???PRES REG ADAPTIVE??? in WORK SUPPORT mode with CONSULT-III.

>> INSPECTION END.

Component Inspection

1.CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)

1. Turn ignition switch OFF.

2. Disconnect high pressure supply pump (volumetric control valve) harness connector.

3. Check resistance between high pressure supply pump (volumetric control valve) terminals as follows.

Is the inspection result normal? YES >> INSPECTION END

NO >> Replace high pressure supply pump.