Instrument Cluster Test 8A - Coolant Temperature Light
NOTE:
Perform INSTRUMENT CLUSTER TEST 4A
before proceeding with this test. For connector terminal identification, see CONNECTOR IDENTIFICATION in BODY CONTROL COMPUTER INTRODUCTION. Perform TEST VER-1A
after each repair.
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
- Turn ignition from OFF position to ON/RUN position. If coolant temperature coolant light comes on, go to next step. If coolant temperature coolant light does not come on, go to step 3).
- Using scan tool, select FAILURE MONITORS under body monitors and read COOLANT SENSOR status. If coolant sensor status is FAILED, see appropriate article in ENGINE PERFORMANCE:
TESTS W/CODES - 2.0L VINS [C,Y] & 2.4L VIN [X]
If coolant sensor status is not FAILED and coolant temperature light does not stay on, light is operating properly. If coolant sensor status is not FAILED and coolant temperature light stays on, repair or replace Mechanical Instrument Cluster (MIC).
- Turn ignition to UNLOCK position. Using scan tool, actuate ALL LAMPS. If coolant temperature light comes on, light is operating properly. If coolant temperature light does not come, go to next step.
- Turn ignition off. Disconnect instrument cluster and ensure connectors are clean and not damaged. Remove and inspect coolant temperature bulb. See Fig 1 . If bulb is okay, go to next step. If bulb is defective, replace bulb.
- Inspect instrument cluster and ensure bulb socket is clean and not damaged. If instrument cluster is okay, replace BCM. If instrument cluster is defective, repair or replace as necessary.