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DTC P0315: No Crank Sensor Learned: Testing

  1. Check for any TSBs that may apply to this symptom. Ignition on, engine not running. With the DRBIII® scan tool, clear DTCs, and perform the PCM battery disconnect to reset the PCM. Start the engine. If the MIL has not yet illuminated, test drive the vehicle to try to get the code to reset. Does the code reset while cranking or during the test drive? If yes, go to next step. If no, see INTERMITTENT CONDITION  under SELF-DIAGNOSTIC SYSTEM.
  2. Visually inspect the CKP sensor wire harness. Look for any chafed, pierced, pinched, or partially broken wires. Visually inspect the CKP sensor wire harness connectors. Look for broken, bent, pushed out, or corroded terminals. Ensure the CKP sensor is properly installed and the mounting bolt tight. Refer to any TSB that may apply. Were any of the above conditions present? If yes, repair as necessary. If no, go to next step.
  3. Turn the ignition off. Remove the CKP sensor. Inspect the tone wheel/flex plate slots for damage, foreign material, or excessive movement. Were any problems found? If yes, repair or replace the tone wheel/flex plate as necessary. If no, go to next step.
  4. If there are no possible causes remaining, replace the crankshaft position sensor.
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