Possible causes – Faulty cooling fan clutch– Faulty control unit Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Faulty cooling fan clutch– Faulty control unit Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Faulty Crankshaft Position (CKP)– Crankshaft Position (CKP) sensor harness is open or shorted– Crankshaft Position (CKP) sensor circuit poor electrical connection– Damaged crankshaft pulse wheel teeth Tech notes Visual inspection of the Crankshaft Position (CKP) sensor and

Possible causes – Faulty crankshaft position sensor– Crankshaft position sensor harness is open or shorted– Crankshaft position sensor circuit poor electrical connection– Signal plate may be damage– Starter motor may be faulty– Starting system circuit– Dead or weak battery Tech

Possible causes – Faulty crankshaft position sensor– Crankshaft position sensor harness is open or shorted– Crankshaft position sensor circuit poor electrical connection– Signal plate may be damage– Starter motor may be faulty– Starting system circuit– Dead or weak battery Tech

Possible causes – Faulty Cruise Control Accel Switch– Cruise Control Accel Switch harness is open or shorted– Cruise Control Accel Switch circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) has detected a fault in

Possible causes – Faulty Cruise Control Coast Switch– Cruise Control Coast Switch harness is open or shorted– Cruise Control Coast Switch circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) has detected a fault in

Possible causes – Faulty Cruise Control Main Switch– Cruise Cruise Control Main Switch harness is open or shorted– Cruise Cruise Control Main Switch circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) has detected a

Possible causes – Faulty Cruise Control Multi-Function Switch– Faulty Cruise Control Multi-Function Switch harness is open or shorted– Faulty Cruise Control Multi-Function Switch circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) has detected a

Possible causes – Faulty Cruise Control Resume Switch– Cruise Control Resume Switch harness is open or shorted– Cruise Control Resume Switch circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) has detected a fault in

Possible causes – Faulty Cruise Control Set Switch– Cruise Control Set Switch harness is open or shorted– Cruise Control Set Switch circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) has detected a fault in

Possible causes – Faulty Cruise Multifunction Switch– Cruise Multifunction Switch harness is open or shorted– Cruise Multifunction Switch circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) has detected a fault in the Cruise Multifunction

Possible causes – Faulty Cruise Multifunction Switch– Cruise Multifunction Switch harness is open or shorted– Cruise Multifunction Switch circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) has detected a fault in the Cruise Multifunction

Possible causes – Faulty cylinder #1 glow plug– Cylinder #1 glow plug harness is open or shroted– Cylinder #1 glow plug circuit poor electrical connection– Faulty glow plug module When is the code detected? The Engine Control Module (ECM) has

Possible causes – Faulty cylinder #2 glow plug– Cylinder #2 glow plug harness is open or shroted– Cylinder #2 glow plug circuit poor electrical connection– Faulty glow plug module When is the code detected? The Engine Control Module (ECM) has

Possible causes – Faulty cylinder #3 glow plug– Cylinder #3 glow plug harness is open or shroted– Cylinder #3 glow plug circuit poor electrical connection– Faulty glow plug module When is the code detected? The Engine Control Module (ECM) has

Possible causes – Faulty cylinder #4 glow plug– Cylinder #4 glow plug harness is open or shroted– Cylinder #4 glow plug circuit poor electrical connection– Faulty glow plug module When is the code detected? The Engine Control Module (ECM) has

Possible causes – Faulty cylinder #5 glow plug– Cylinder #5 glow plug harness is open or shroted– Cylinder #5 glow plug circuit poor electrical connection– Faulty glow plug module When is the code detected? The Engine Control Module (ECM) has

Possible causes – Faulty cylinder #6 glow plug– Cylinder #6 glow plug harness is open or shroted– Cylinder #6 glow plug circuit poor electrical connection– Faulty glow plug module When is the code detected? The Engine Control Module (ECM) has

Possible causes – Faulty EGR volume control solenoid valve– EGR volume control solenoid valve harness is open or shorted– EGR volume control solenoid valve circuit poor electrical connection– EGR temperature sensor and circuit When is the code detected? An improper