P0341
Diagnostic Chart:
Wiring Diagram:
CIRCUIT DESCRIPTION
This DTC identifies that the cam and the crank relationship is skewed and that the cam pulses are read in a haphazard ratio to the crank pulses. This fault is not a solid or consistent failure. The fault may not act the same way twice.
CONDITIONS FOR SETTING THE DTC
^ The engine running
^ Cam sensor reference pulse is not detected at the correct interval every 8 cylinders
ACTION TAKEN WHEN THE DTC SETS
The VCM will turn ON the MIL (Malfunction Indicator Lamp) after 2 consecutive test failures.
CONDITIONS FOR CLEARING THE MIL/DTC
^ The VCM turns the MIL OFF after 3 consecutive drive trips when the test has Run and Passed and not Failed.
^ A history DTC will clear if no fault conditions have been detected for 40 warm-up cycles (coolant temperature has risen 22°C (40°F) from the start-up coolant temperature and the engine coolant temperature exceeds 70°C (160°F) during the same ignition cycle).
^ Use the scan tool Clear Information function.
^ Disconnect the VCM battery feed for 30 seconds.
DIAGNOSTIC AIDS
A poor connection, rubbed through wire insulation, or a wire that is broken inside the insulation may cause an intermittent.
Any circuitry, that is suspected as causing the intermittent complaint, should be thoroughly checked for the following conditions:
^ Backed out terminals
^ Improper mating
^ Broken locks
^ Improperly formed or damaged terminals
^ Poor terminal to wiring connections or
^ Physical damage to the wiring harness.
Refer to Symptoms. Testing and Inspection
TEST DESCRIPTION
The step number below refers to the step number in the diagnostic table.
2. This step determines if DTC P0341 is the result of a hard failure or an intermittent condition. Determines, also, if voltage is available to the CMP through the VCM.
If the ignition feed circuit is shorted to ground, the test light will be ON. This step determines it the circuit is open or shorted to ground. If the circuit is OK, then the VCM connections or VCM is faulty.