Engine Control System

DIAGNOSTIC TROUBLE CODE CHART

P0090 - P0138:

P0139 - P0506:

P0507 - P2263:

NOTE: Do not replace the engine control module (ECM) until a thorough terminal check reveals there are no short/open circuits.

NOTE: Check that the ECM ground circuit is normal before checking for the cause of the problem.

NOTE: 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 "*," the diagnostic trouble code is recorded on the first detection of the malfunction.

NOTE: Sensor 1 indicates the sensor mounted at a position closest to the engine, and sensor 2 indicates the sensor mounted at the position second closest to the engine.