Comanche 4WD L6-242 4.0L VIN S MFI (1992)
Maintenance Required Lamp/Indicator: Service and Repair
Diagnostic Connector Location
The emission maintenance timer will illuminate an indicator lamp on the instrument cluster when vehicle mileage has reached 82,500 miles. At this
time, the oxygen sensor and other scheduled emission maintenance is required.
If the timer should fail before vehicle has accumulated 82,500 miles, the timer and oxygen sensor should both be replaced to maintain a proper
sensor replacement interval.
After necessary emission maintenance has been performed, connect Diagnosis Read-Out Box II (DRB II) to the on-board diagnosis connector.
Follow instructions indicated by DRB II tool.
