Comanche 2WD L4-150 2.5L VIN E TBI (1989)
Maintenance Required Lamp/Indicator: Service and Repair
Emissions Maintenance Reminder Timer 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 PCV valve should be replaced, in addition to the other required emission maintenance scheduled for this mileage.
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 performing the required service, replace the emission maintenance timer as follows:
1. On Comanche, Cherokee and Wagoneer models, the emission maintenance timer is located under the instrument panel to the right of the
steering column.
2. On Comanche, Cherokee and Wagoneer models, remove cruise control module attaching screws, then remove module, if equipped.
3. On all models, remove emission maintenance timer to dash bracket attaching screws.
4. Remove timer, then disconnect electrical connector.
5. Connect electrical connector to replacement timer, then position timer to dash panel and install and tighten attaching screws.
