Inspection Procedure 2

Inspection procedure 2: The malfunction indicator lamp (SERVICE ENGINE SOON or check engine lamp) does not illuminate right after the ignition switch is turned to the "ON" position

CIRCUIT OPERATION

- The combination meter causes the malfunction indicator lamp (SERVICE ENGINE SOON or Check Engine Lamp) to illuminate immediately after the ignition switch is turned to the "ON" position occurred.

TROUBLESHOOTING HINTS (The most likely causes for this case:)

- Combination meter failed.

DIAGNOSIS

STEP 1. Check the trouble symptoms.

(1)Turn the ignition switch to the "ON" position.

- The malfunction indicator lamp (SERVICE ENGINE SOON or Check Engine Lamp) should illuminate immediately after the ignition switch is turned to the "ON" position.

(2)Turn the ignition switch to the "LOCK" (OFF) position.

Q. Does the malfunction indicator lamp (SERVICE ENGINE SOON or Check Engine Lamp) illuminate?

YES It can be assumed that this malfunction is intermittent. How to Cope With Intermittent Malfunctions.
NO Check the combination meter system. Symptom Chart.