Test 56C - Checking Ambient Temperature Sensor For Shorts
NOTE:
For connector terminal identification, see CONNECTOR
IDENTIFICATION. For wiring diagram, see WIRING DIAGRAMS
. Perform TEST VER-1 after each repair.
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
- Disconnect ambient temperature sensor connector, located on inside of left front bumper. Using DRB, 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.
- Place DRB in ohmmeter mode. Turn ignition switch to OFF position. Disconnect compass/temperature module connector. Check, clean and repair connections as needed. Measure resistance at 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, measure resistance at 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.