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AMBIENT TEMPERATURE SENSOR CIRCUIT (CONTINUED) 3. READ AMBIENT TEMPERATURE SENSOR VOLTAGE WITH DRB III T Turn the ignition off. Connect a jumper wire between the Ambient Temperature Sensor Sig- Turn the ignition on. With the DRB III T , read the Ambient Temperature Sensor voltage. Does the DRB III T display AMBIENT TEMP: 4.5 VOLTS or greater? Yes >> Go to 4 No >> Replace the Ambient Temperature Sensor. (Refer to 24 - HEATING & AIR CONDITIONING/CONTROLS/AMBIENT Perform BODY VERIFICATION TEST. 4. MEASURE THE RESISTANCE OF THE AMBIENT TEMPERATURE SENSOR SIGNAL CIRCUIT Turn the ignition off. Disconnect the Instrument Cluster harness connector. Note: Check connectors - Clean/repair as necessary. Is the resistance below 5.0 ohms? Yes >> Go to 5 No >> Repair the Ambient Temperature Sensor Signal circuit for an open. Perform BODY VERIFICATION TEST. ZH INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS 8J - 13 |