The camshaft position (CMP) sensor is a 1X sensor. The CMP sensor provides one digital ON/OFF signal to the ignition control (IC) module per revolution of the camshaft. The CMP sensor is connected directly to the IC module and sends the CMP sensor pulses to the powertrain control module (PCM) on the camshaft position signal. This information is used by the PCM to determine the position of the valve train relative to the crankshaft position (CKP). By monitoring the CMP and CKP signals, the PCM can accurately time the operation of the fuel injectors. The PCM monitors the CMP sensor for errors. The CMP sensor wiring includes the following circuits:

Important: The PCM detects engine movement by sensing the airflow through the mass air flow (MAF) sensor is more than 3 g/s, or by sensing CMP sensor pulses.

DTC P0341 is a Type B DTC.

DTC P0341 is a Type B DTC.

Schematic Reference

Engine Controls Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Electronic Ignition (EI) System Description

Electrical Information Reference

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

1. With the ignition OFF, inspect the engine wiring harnesses carrying the CKP sensor circuits for the following conditions:

•	Close routing of secondary ignition wires

•	Close routing of aftermarket electrical equipment

•	Close to solenoids, motors, and relays

⇒	Correct any wire harness routing or component placement conditions, if it is determined to be a possible source of electrical interference.

2. Monitor the CMP RPM and the CMP signal Present parameters. The parameters should indicate RPM and display YES continuously with the engine running or cranking.
3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

1. Ignition OFF, disconnect the IC module connector. Test for less than 1 ohm on the camshaft position signal circuit IC module terminal J.

⇒	If greater than the specified value, test the camshaft position signal circuit for an open/high resistance.

2. Inspect the CMP sensor for looseness and correct installation.

⇒	If the sensor is loose, inspect the sensor and the O-ring for damage, replace as necessary.

3. Inspect the engine for the following conditions:

•	Engine oil for debris and contamination

•	Crankshaft reluctor wheel for damage

•	The timing chain, tensioner, and sprockets for wear or damage

⇒	If debris is found in the engine oil, inspect the internal engine components to determine the cause. Repair or replace any worn or damaged components.

4. If the camshaft position signal circuit, CMP sensor and engine timing components test normal, replace the IC module.

1. Inspect the CMP sensor for looseness and correct installation.
2. Connect jumper wires from the CMP sensor connector 12-volt reference CMP sensor terminal C and the low reference CMP sensor terminal B to the CMP sensor. Turn ON the ignition, with the engine OFF.
3. Connect a DMM to the CMP sensor signal CMP sensor terminal A at the CMP sensor and observe the Duty Cycle. Pass a steel object by the sensor repeatedly. The Duty Cycle should increment.

⇒	If the Duty Cycle does not increment, replace the CMP sensor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.