Comanche 2WD L4-150 2.5L VIN H TBI (1988)
Temperature Warning Lamp/Indicator: Testing and Inspection
1.
Turn ignition switch to Run position.
2.
Touch coolant temperature indicator connector terminal S to ground.
3.
If indicator lamp illuminates, replace switch.
4.
If bulb is satisfactory, repair open to instrument cluster connector terminal A1.