VTSS Indicator Inoperative
- Turn ignition off. Disconnect sun sensor/VTSS indicator harness connector. Measure voltage at terminal No. 1 (Pink wire) at sun sensor/VTSS indicator harness connector. See Figure . If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
- Connect scan tool to Data Link Connector (DLC). Turn ignition on. Measure voltage between terminals No. 1 (Pink wire) and 2 (Black/Orange wire) at sun sensor/VTSS indicator harness connector. Using scan tool, activate VTSS light. If voltage does not pulse between 2-10 volts, go to next step. If voltage pulses between 2-10 volts, replace sun sensor/VTSS indicator.
- Turn ignition off. Disconnect Body Control Module (BCM) harness connector C2. Measure resistance in Black/Orange wire between terminal No. 2 at sun sensor/VTSS indicator harness connector and terminal No. 23 at BCM harness connector C2. See Figure . If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Black/Orange wire between sun sensor/VTSS indicator and BCM.