Specifications

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
engine/vehicle operating conditions under which the DTC was set. Some of
these conditions are displayed on the DRB at the same time the DTC is
displayed.
NOTE: Before erasing stored DTCs, record these conditions. Attempting to
duplicate these conditions may assist when checking for an active DTC.
Turn the ignition on.
With the DRBIIIt, erase the ECM DTCs.
Attempt to start the engine.
With the DRBIIIt, 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.
With the DRBIIIt, erase the ECM DTCs.
Test drive the vehicle.
With the DRBIIIt, 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
installed correctly and the camshaft and crankshaft gears are timed correctly.
Turn the ignition off.
Remove the CMP Sensor.
Inspect the CMP Sensor for conditions such as loose mounting screws, damage or
debris, also check the camshaft for cracked teeth.
Is there any evidence of these conditions?
All
Yes → Repair as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
No → Go To 4
229
DRIVEABILITY - DIESEL