DTC Troubleshooting

DTC DIAGNOSTIC TROUBLESHOOTING CHART

Step	Action	YES	NO
1	Was "Engine and Emission Control System Check" performed?	Go to Step 2.	Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK .
2	CKP sensor and its circuit resistance check Remove ECM cover. With ignition switch turned OFF, disconnect ECM coupler ("C51-2"). Check for proper connection to ECM at "C51-2-19" and "C51-2-20" terminals. If OK, measure resistance of the followings. CKP sensor resistance Between "C51-2-19" and "C51-2-20" terminals: 485 - 655 Ω at 20 °C (68 °F) CKP sensor resistance between each terminal and ground: 1 MΩ or more Is measure result satisfactory?	Go to Step 4.	Go to Step 3.
3	CKP sensor resistance check With ignition switch turned OFF, disconnect CKP sensor coupler. Measure resistance between terminals of CKP sensor coupler. Were measured resistance values as specified in Step 2?	Faulty "WHT/BLU" wire or "ORN/BLU" wire.	Faulty CKP sensor.
4	CKP sensor visual inspection Check visually CKP sensor and sensor plate (1) for the followings. Damage No foreign material attached Correct installation Are they in good condition?	Intermittent trouble or faulty ECM. Recheck for intermittent referring to INTERMITTENT AND POOR CONNECTION INSPECTION .	Replace or reinstall.