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P0070 - AMBIENT AIR TEMPERATURE SENSOR STUCK For a complete wiring diagram Refer to Section 8W • When Monitored: • Set Condition: Possible Causes INTERMITTENT DTC FRONT CONTROL MODULE AMBIENT TEMPERATURE SENSOR Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Diagnostic Test 1. DTC IS ACTIVE NOTE: The Ambient Air Temperature Sensor is hardwired to the FCM. With the scan tool, Clear DTCs in the Engine Control Module (ECM). Monitor the scan tool for at least two minutes. Cycle the ignition key off and on several times, leaving the ignition on for at least 10 seconds at a time. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes >> Refer to the Service Information to diagnose problem with Ambient Air Temperature Sensor or associ- ated wiring and connectors. No >> Test Complete. 9 - 1092 ENGINE ELECTRICAL DIAGNOSTICS - DIESEL LX |