Test K: The Malfunction Indicator Lamp (MIL) Is Never On

PINPOINT TEST K: THE MALFUNCTION INDICATOR LAMP (MIL) IS NEVER ON

K1-K3:

K3-K5:

K5-K7:

Normal Operation
The MIL is controlled by the instrument cluster using data sent from the powertrain control module (PCM) through circuit 658 (PK/LG). If the PCM detects a fault, the circuit is grounded, causing the MIL to illuminate.

Possible Causes
- circuit 658 (PK/LG) open or short to ground
- instrument cluster
- PCM