Trooper S V6-3.5L (1998)
Diagnostic Chart
Malfunction Indicator Lamp (MIL) "on" Steady
Circuit description
The malfunction indicator lamp (MIL) should always be illuminated and steady with ignition "ON" and the engine stopped. Ignition feed voltage is
supplied directly to the MIL indicator. The powertrain control module (PCM) turns the MIL "ON" by grounding the MII driver circuit.
The MIL should not remain "ON" with the engine running and no DTC(s) set. A steady MII with the engine running and no DTC(s) suggests a short to