VTSS Test 5A - VTSS Indicator Light
NOTE:
Perform VTSS TEST 1A
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.
- Using scan tool, read VTSS status. If scan tool displays PCM status as 1 NO RESPONSE/2 NO RESPONSE, see NO RESPONSE TEST 3A . If scan tool does not display PCM status as 1 NO RESPONSE/2 NO RESPONSE and VTSS indicator light is on all the time, go to step 5). If scan tool does not display PCM status as 1 NO RESPONSE/2 NO RESPONSE and VTSS indicator light is not on all the time, go to next step.
- Turn ignition off. Locate instrument panel 10-pin connector at BCM/junction block. See Figure in CHIME TEST 3A. Disconnect instrument panel 10-pin connector. Ensure connector is clean and not damaged. Connect a jumper wire between instrument panel 10-pin connector terminal No. 4 (Black/Orange wire) and ground. If VTSS indicator light does not come on, go to next step. If VTSS indicator light comes on, replace BCM.
- Locate instrument cluster Red 13-pin connector behind instrument cluster. See Figure in INSTRUMENT CLUSTER TEST 8A. Disconnect instrument cluster Red 13-pin connector and ensure connector is clean and not damaged. Using scan tool in voltmeter mode, check voltage on instrument cluster Red 13-pin connector terminal No. 2 (Pink/Red wire). If voltage is greater than 10 volts, go to next step. If voltage is less than 10 volts, repair open in Pink/Red wire circuit.
- Using an external ohmmeter, check resistance between instrument cluster Red 13-pin connector terminal No. 7 (Black/Orange wire) and instrument panel 10-pin connector terminal No. 4 (Black/Orange wire). If resistance is greater than 5 ohms, repair open in Black/Orange wire circuit. If resistance is less than 5 ohms, replace VTSS indicator light.
- Disconnect instrument panel 10-pin connector and ensure connector is clean and not damaged. If VTSS indicator light goes off, replace BCM. If VTSS indicator light stays on, repair short to ground in Black/Orange wire circuit.