Diagnostic Test Mode I-Bulb Check

DIAGNOSTIC TEST MODE I-BULB CHECK
In this mode, the MALFUNCTION INDICATOR LAMP on the instrument panel should stay ON. If it remains OFF, check the bulb. (Refer to WARNING LAMPS AND CHIME.)
1. BULB CHECK:
This function checks the bulb for damage (blown, open circuit, etc.) of the malfunction indicator lamp.
- If the MIL does not come on, check MIL circuit and ECM test mode selector.





DIAGNOSTIC TEST MODE I-MALFUNCTION WARNING
- These Diagnostic Trouble Code Numbers are clarified in Diagnostic Test Mode II (SELF-DIAGNOSTIC RESULTS).
2. MALFUNCTION WARNING:
This is a usual driving condition. When a malfunction is detected twice (2 trip detection logic), the malfunction indicator lamp will light up to inform the driver that a malfunction has been detected.
Only the following malfunctions will light up or blink the MIL even in the 1st trip.
- "Misfire (possible three way catalyst damage)"
- "Closed loop control"
- "Fail-safe mode" [except for crankshaft position sensor (REF) circuit]