Grand Cherokee 2WD L6-242 4.0L VIN S MFI (1993)
Temperature Gauge: Testing and Inspection
Temperature Gauge Test
1.
Check for a open in B+ line to cluster connector terminal D9. If D9 has battery voltage continue with next step, if not repair circuit as required.
2.
Turn ignition switch to RUN. Disconnect coolant temperature sensor connector, needle should to to LOW.
3.
If needle did not go to LOW, touch coolant temperature sender connector to ground, needle should go to HIGH. If satisfactory replace sender, if
not check for an open between sender and gauge. If satisfactory replace gauge.
