Instrument Cluster Test 3D - Temperature Gauge Not Operating Properly
NOTE:
Perform INSTRUMENT CLUSTER TEST 1A
before proceeding with this test. For connector terminal identification, refer to CONNECTOR IDENTIFICATION
. For wiring diagrams, refer to WIRING DIAGRAMS
. Perform, after each repair, VERIFICATION TEST VER-1A - VERIFICATION PROCEDURE
.
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
- Ensure cooling system is operating properly. If cooling system is operating properly, go to next step. If cooling system is not operating properly, repair as needed.
- Turn ignition on. Using scan tool, actuate gauges. If temperature gauge gradually steps up from cold to hot, then back to cold, go to next step. If temperature gauge does not move from cold to hot, replace temperature gauge. Recalibrate gauges using scan tool.
- Using scan tool, read Powertrain Control Module (PCM) status. If scan tool displays ACTIVE ON THE BUS, go to next step. If scan tool does not display ACTIVE ON THE BUS, go to VEHICLE COMMUNICATIONS .
- Using scan tool, read PCM DTCs. If an engine COOLANT TEMPERATURE SENSOR DTC is not present, go to next step. If an engine COOLANT TEMPERATURE SENSOR DTC is present, see TESTS W/CODES article in the ENGINE PERFORMANCE Section.
- Start and idle engine. Using scan tool, read engine temperature. If scan tool temperature display matches temperature gauge display, temperature gauge is operating properly. If scan tool display and temperature gauge do not match, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. See Figure .