Cherokee 4WD L6-4.0L VIN S (1998)
Malfunction Indicator Lamp: Testing and Inspection
The diagnosis found here addresses an inoperative malfunction indicator lamp condition. If the lamp comes on and stays on with the engine running,
refer to Powertrain Management/Computer and Control Systems for diagnosis.
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, REFER TO AIR BAGS SYSTEMS BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. FAILURE TO TAKE THE
PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIR-BAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
If the malfunction indicator lamp fails to light during the bulb test (about 3 Seconds after the ignition switch is turned to the On position), replace the
malfunction indicator lamp bulb with a known good unit. If the indicator lamp still fails to operate, diagnosis of the Powertrain Control Module (PCM)
and the Chrysler Collision Detection (CCD) data bus should be performed with a DRB scan tool. For diagnosis of the malfunction indicator lamp see
Instrument Panel, Gauges and Warning Indicators/Malfunction Indicator Lamp.
