MFI Engine Control System

DIAGNOSTIC TROUBLE CODE CHART

CAUTION: During diagnosis, a DTC code associated with other system may be set when the ignition switch is turned on with connector(s) disconnected. On completion, confirm all systems for DTC(s). If DTC(s) are set, erase them all.

P0010-P0125*1:

P0128-P0420:

P0441-P1237*1:

P12381-U01211:

U01411-U11801:

NOTE:
- Do not replace the engine control module (ECM) until a through terminal check reveals there are no short/open circuits.
- Check that the ECM ground circuit is normal before checking for the cause of the problem.
- After the ECM detects a malfunction, a diagnostic trouble code is recorded the next time the engine is started and the same malfunction is re-detected. However, for items marked with a "*1", the diagnostic trouble code is recorded on the first detection of the malfunction.
- The codes marked with a "*2" in the diagnostic trouble code number column have the following two conditions for recording the diagnostic trouble code.
- In case that the misfire causing the damaged catalyst is detected, the diagnostic trouble code is recorded at the time.
- In case that the misfire deteriorating the exhaust gas is detected, the diagnostic trouble code is recorded when the same malfunction is redetected after the next engine start.
- Sensor 1 of the heated oxygen sensor indicates the sensor mounted at a position closest to the engine, and sensor 2 of the heated oxygen sensor indicates the sensor mounted at the position second closest to the engine.