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ENGINE DRIVEABILITY AND EMISSIONS 6E–173 Diagnostic Aids An intermittent may be caused by a poor connection, • Poor connection - Inspect the ECM harness and connectors for improper mating, broken locks, • Damaged harness - Inspect the wiring harness for damage; shorts to ground, shorts to battery positive Diagnostic Trouble Code (DTC) P0336 Crankshaft Position Sensor Circuit Range/performance (58x) Diagnostic Trouble Code (DTC) P0337 Crankshaft Position Sensor Circuit Low Input (58x) Step Action Value(s) Yes No 1 Was the “On-Board Diagnostic (OBD) System Check” — Go to Step 2 Go to On Board Diagnostic (OBD) System Check 2 1. Connect the Tech 2. 2. Review and record the failure information. 3. Select “F0: Read DTC Infor By Priority” in “F0: Diagnostic Trouble Code”. Is the DTC P0336 or P0337 stored as “Present — Go to Step 3 Refer to Diagnostic Aids and Go to Step 3 3 1. Using the Tech2, ignition “On” and engine “Off”. 2. Select “Clear DTC Information” with the Tech2 and clear the DTC information. 3. Operate the vehicle and monitor the “F5: Failed This Ignition” in “F2: DTC Information”. Was the DTC P0336 or P0337 stored in this ignition — Go to Step 4 Refer to Diagnostic Aids and Go to Step 4 4 Check for poor/faulty connection at the CKP sensor or — Verify repair Go to Step 5 5 Visually check the CKP sensor. If a faulty installation is — Verify repair Go to Step 6 21 6 1 E-60(J1) E-59 |