Test 15C - Shorted Ambient Temperature Sensor Circuit
CAUTION:
Always turn ignition off prior to disconnecting or connecting any module connector.
NOTE:
For connector terminal identification, see CONNECTOR IDENTIFICATION . For wiring diagram, see WIRING DIAGRAMS - 3.0L
article in ENGINE PERFORMANCE. Perform TEST VER-1 after each repair.
- Disconnect ambient temperature sensor connector, located behind right front bumper fascia. Using scan tool, read ambient temperature sensor voltage. If voltage is more than 4 volts, replace ambient temperature sensor. If voltage is less than 4 volts, go to next step.
- Turn ignition off. Disconnect compass/temperature module connector. Check, clean and repair connections as needed. Ifconnections are okay, go to next step.
- Using scan tool in ohmmeter mode, check resistance of compass/temperature module connector terminal No. 6 (Violet/Light Green wire). If resistance is less than 5 ohms, repair short to ground in Violet/Light Green wire. If voltage is more than 5 ohms, go to next step.
- Using external ohmmeter, check resistance of compass/temperature module connector between terminals No. 6 (Violet/Green wire) and No. 8 (Black/Light Blue wire). If resistance is more than 5 ohms, replace compass/temperature module. If resistance is less than 5 ohms, repair short between Violet/Light Green wire and Black/Light Blue wire.