Test S

PINPOINT TEST S: THE SERVICE ENGINE SOON INDICATOR IS NEVER ON

Test S1:

Test S1-S2:

Normal Operation
The malfunction indicator lamp (MIL) is controlled by the instrument cluster utilizing data sent from the PCM over the CAN, using circuits 3125 (RD/YE) and 3126 (TN/YE).

Possible Causes
- PCM
- instrument cluster