Diagnosis Procedure
DIAGNOSIS PROCEDURE
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Idle Air Volume Learning Perform [Idle Air Volume Learning]. Is Idle Air Volume Learning carried out successfully? |
GO TO 2. | Follow the instruction of Idle Air Volume Learning. |
| 2 | CHECK Intake system Check for the cause of intake air volume lacking. Refer to the following. * Crushed intake air passage * Intake air passage clogging * Clogging of throttle body Is the inspection result normal? |
GO TO 3. | Repair or replace malfunctioning part. |
| 3 | CHECK FUEL INJECTION SYSTEM FUNCTION Perform DTC Confirmation Procedure for DTC P0171, P0174. Refer to P0171, P0174 FUEL INJECTION SYSTEM FUNCTION . OK or NG |
GO TO 4. | Go to P0171, P0174 FUEL INJECTION SYSTEM FUNCTION for DTC P0171, P0174. |
| 4 | PERFORM DTC CONFIRMATION PROCEDURE 1. Turn ignition switch ON. 2. Erase DTC. 3. Perform DTC Confirmation Procedure. See P050E Cold Start Control . Is the 1st trip DTC P050E displayed again? |
GO TO 5. | INSPECTION END |
| 5 | REPLACE ECM 1. Replace ECM. 2. Go to PROCEDURE AFTER REPLACING ECM . |
INSPECTION END |