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Home >> Dodge and Ram >> 1994 >> Intrepid ES, 3.5 F >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Body Control Computer >> Self-Diagnostic Tests >> Test 15E - Repairing OTIS Ambient Temperature Sensor
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Test 15E - Repairing OTIS Ambient Temperature Sensor

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  . For wiring diagrams, see WIRING DIAGRAMS  . Perform TEST VER-1 after each repair.
CAUTION: Always turn ignition switch to OFF position prior to disconnecting any module connector.
  1. Using DRB, read outside temperature. If DRB does not display 185°F, go to step 4). If DRB displays 185°F, go to next step.
  2. Disconnect ambient (outside) temperature sensor connector. Sensor is located behind front bumper, left of center. Turn ignition switch to OFF position, then back to ON position. If DRB temperature display drops below 0°F, replace ambient temperature sensor. If DRB temperature display does not drop below 0°F, go to next step.
  3. Turn ignition switch to OFF position. Disconnect Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. Using DRB in ohmmeter mode, check resistance on BCM Gray connector terminal No. 10 (Violet/Light Green wire). If resistance is less than 5 ohms, repair short to ground in Violet/Light Green wire. If resistance is more than 5 ohms, replace BCM.
  4. Disconnect ambient (outside) temperature sensor connector. Sensor is located behind front bumper, left of center. Connect jumper wire between ambient temperature sensor connector terminals No. 1 (Gray/Tan wire) and No. 2 (Violet/Light Green wire). Turn ignition switch to OFF position, then back to ON position. Using DRB, read outside temperature. If DRB displays 185°F, replace ambient temperature sensor. If DRB does not display 185°F, go to next step.
  5. Connect jumper wire between chassis ground and ambient temperature sensor connector terminal No. 2 (Violet/Light Green wire). Turn ignition switch to OFF position, then back to ON position. If DRB displays 185°F, repair open Gray/Tan wire. If DRB does not display 185°F, go to next step.
  6. Turn ignition switch to OFF position. Disconnect Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. Using an external ohmmeter, check resistance of Violet/Light Green wire between BCM Gray connector terminal No. 10 and ambient temperature sensor connector terminal No. 2. If resistance is less than 5 ohms, replace BCM. If resistance is more than 5 ohms, repair open Violet/Light Green wire.
NOTE: A break in test sequence occurs at this point. Diagnostic TEST 16A and TEST 16B are related to manual A/C-heater system. Diagnostic TEST 17A through TEST 25J are related to Automatic Temperature Control (ATC) system. Test procedures for manual or automatic A/C-heater systems may be found in 1994 lemon-25(R) AIR CONDITIONING & HEATING SERVICE & REPAIR, DOMESTIC CARS, LIGHT TRUCKS & VANS manual.
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