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Symptom: P2606-CMP/CKP SYNCHRONIZATION ERROR POSSIBLE CAUSES CAMSHAFT POSITION SENSOR SIGNAL PROBLEM CRANKSHAFT POSITION SENSOR SIGNAL PROBLEM DAMAGED CKP SENSOR DAMAGED CMP SENSOR OR CAMSHAFT ENGINE CONTROL MODULE GEAR ALIGNMENT PROBLEM INTERMITTENT CONDITION TEST ACTION APPLICABILITY 1 NOTE: If the ECM detects and stores a DTC, the ECM also stores the t, erase the ECM DTCs. Attempt to start the engine. t, read the ECM DTCs. Does the DRB III display this DTC? All Yes → Go To 3 No → Go To 2 2 Turn the ignition on. t, erase the ECM DTCs. Test drive the vehicle. t, read the ECM DTCs. Does the DRB III display this DTC? All Yes → Go To 3 No → Go To 8 3 Refer to the Service Information to ensure the Engine Drive Gears/Sprocket are All Yes → Repair as necessary. Perform ROAD TEST VERIFICATION - VER-2. No → Go To 4 229 DRIVEABILITY - DIESEL |