DTC Diagnosis Procedure

If DTC P0090, P1197, P0190, P119A, P119B, P119C, P020x, or P062B, first perform the trouble diagnosis of DTC P0090, P1197, P0190, P119A, P119B, P119C, P020x, or P062B.

Is applicable DTC detected?

YES>>

Perform the diagnosis of the applicable or DTC Index .

NO>>

GO TO 2

.

Check that the fuel level is enough.

Is there 1/8 or more fuel?

YES>>

GO TO 4.

NO>>

GO TO 3

.

1. Refuel to over 1/8 of full.
2. Start the engine and keep the engine speed at 3, 000 RPM for 30 seconds.
   NOTE: For best results, warm up the engine until "COOLAN TEMP/S" on "DATA MONITOR" mode of "ENGINE" reaches at least 70°C (158°F).
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
5. Turn ignition switch OFF and wait at least 10 seconds.
6. Turn ignition switch ON.
7. Erase the DTC.
8. Start the engine and let it idle at least 60 seconds.
9. Perform DTC confirmation procedure again or Confirmation Procedure .

Is DTC P0087 detected?

YES>>

GO TO 4.

NO>>

INSPECTION END

1. Start the engine, and let the engine run at idle at least for 10 minutes.
2. Perform DTC confirmation procedure of DTC P0087 or Confirmation Procedure .

Is the DTC P0087 detected again?

YES>>

GO TO 5

.

NO>>

INSPECTION END

1. Turn ignition switch ON and select "DATA MONITOR" mode of "ENGINE" using CONSULT.
2. Start engine and warm it up to normal operating temperature.
3. Check the indication of "FUEL PRES SEN" or Physical Values .

Is inspection result normal?

YES>>

GO TO 6.

NO>>

GO TO 7

.

Check low fuel pressure or Work Procedure . Is inspection result normal?

YES>>

GO TO 7

.

NO>>

GO TO 11

.

Check high pressure fuel pump or Component Inspection . Is inspection result normal?

YES>>

GO TO 8

.

NO>>

Repair or replace the error-detected parts.

Check fuel rail pressure sensor or Component Inspection . Is inspection result normal?

YES>>

GO TO 9

.

NO>>

Repair or replace the error-detected parts.

Check high pressure fuel pump lifter or HIGH PRESSURE FUEL PUMP AND FUEL HOSE : Removal and Installation . Does the lifter top surface have scratches and/or dents?

YES>>

Replace the error-detected parts.

NO>>

GO TO 10

.

1. Start the engine.
2. Visually check that the high pressure fuel pump, fuel rail, and fuel piping have no fuel leakage.

Is inspection result normal?

YES>>

INSPECTION END

NO>>

Replace the error-detected parts.

Check low pressure fuel pump or Component Inspection . Is inspection result normal?

YES>>

GO TO 12

.

NO>>

Repair or replace the error-detected parts.

Check FPCM or Component Inspection . Is inspection result normal?

YES>>

GO TO 13

NO>>

Repair or replace the error-detected parts.

Check fuel hoses and fuel tubes for clogging.

Is inspection result normal?

YES>>

GO TO 14

.

NO>>

Repair or replace the error-detected parts.

1. Start the engine.
2. Visually check that the low pressure fuel pump, fuel rail, and fuel piping have no fuel leakage.

Is inspection result normal?

YES>>

INSPECTION END

NO>>

Replace the error-detected parts.