Instrument Cluster Test 2

An instrument cluster chime request circuit to the [1][2]Central Timer Module ([1][2]CTM) is used on models equipped with the optional Vehicle Theft Security System (VTSS). Before performing this test, see Driver Seat Belt Switch.

WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, REFER TO AIRBAGS AND SEAT BELTS/AIRBAGS BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

1. Disconnect and isolate the battery negative cable. Remove the instrument cluster from the instrument panel.
2. Access and unplug the Central Timer Module (CTM) wire harness connectors.
3. Check for continuity between the chime request circuit cavity of the 14-way [1][2]CTM wire harness connector and a good ground. There should be no continuity. If OK, go to Step 4. If not OK, repair the short circuit as required.
4. Check for continuity between the chime request circuit cavities of the 14-way [1][2]CTM wire harness connector and the instrument cluster wire harness connector (connector B). There should be continuity. If OK, see [1][2]Central Timer Module. If not OK, repair the open circuit as required.