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P0366




DTC P0341 or P0366

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provide an overview of each diagnostic category.

DTC Descriptors
DTC P0341 00
- Intake Camshaft Position Sensor Performance

DTC P0366 00
- Exhaust Camshaft Position Sensor Performance

Diagnostic Fault Information






Circuit/System Description

Each camshaft is equipped with a camshaft position sensor that the engine control module (ECM) monitors. The camshaft position sensor is a hall effect switch that works in conjunction with a 4X reluctor wheel. The reluctor wheels are mounted to the camshaft position actuators that are mounted to the end of the camshafts. The ECM uses the camshaft position sensor signals in order to determine the position of the camshafts. The ECM supplies 5 V to the camshaft position sensors on the 5 V reference circuits, and supplies a ground on the low reference circuits. The camshaft position sensors provide a signal to the ECM on the signal circuits.

Conditions for Running the DTC

* Starter has been engaged.
* P0335, P0336, P0641, or P0651, are not set.

Conditions for Setting the DTC

The ECM detects a signal from the camshaft position sensor, but the number of pulses are less than or greater than what is expected for one crankshaft revolution.

Action Taken When the DTC Sets

DTCs P0341 00, and P0366 00 are Type B DTCs.

Conditions for Clearing the DTC

DTCs P0341 00, and P0366 00 are Type B DTCs.

Diagnostic Aids

A high resistance condition on the camshaft position sensor circuits may cause a DTC to set.

Reference Information
Schematic Reference

Engine Controls Schematics [1][2]Electrical Diagrams
Connector End View Reference

Component Connector End Views Hybrid/EV Battery Pack X1 A4
Description and Operation

Hybrid Modes of Operation Description Hybrid Modes of Operation Description
Electrical Information Reference

* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit/System Verification

1. Service Mode active, observe the DTC information with a scan tool. DTC P0641 00 should not be set.

• If DTC P0641 00 is set, refer to DTC P0641, P0651, P0697, or P06A3 Powertrain Management.

2. Engine running, observe the scan tool Intake Camshaft Position Active Counter and Exhaust Camshaft Position Active Counter parameter. The parameters should be incrementing.
3. Engine running, observe the DTC information with a scan tool. DTC P0341 00 or P0366 00 should not set.
4. 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.

Circuit/System Testing

1. Ignition OFF, inspect the appropriate B23F Camshaft Position Sensor - Intake or B23E Camshaft Position Sensor - Exhaust sensor for correct installation.

• If the B23F Camshaft Position Sensor - Intake or B23E Camshaft Position Sensor - Exhaust sensor is loose, inspect the sensor and the O-ring for damage, and replace as necessary.

2. Disconnect the harness connector at the appropriate B23F Camshaft Position Sensor - Intake or B23E Camshaft Position Sensor - Exhaust sensor.
3. Ignition OFF and all vehicle systems OFF, it may take 2 minutes for all Vehicle systems to power down, test for less than 5 ohm between the low reference circuit terminal 2 and ground.

• If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K20 Engine Control Module.

4. Service Mode active, test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and ground.

• If less than the specified range, test the 5 V reference circuit for a short to ground, or an open/high resistance. If the circuit tests normal, replace the K20 Engine Control Module.
• If greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the K20 Engine Control Module.

5. Test for 4.8-5.2 V between the signal circuit terminal 3 and ground.

• If less than the specified range, test the signal circuit for a short to ground, or an open/high resistance. If the circuit tests normal, replace the K20 Engine Control Module.
• If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K20 Engine Control Module.

6. Ignition OFF, connect a 3 A fused jumper wire to the B23F Camshaft Position Sensor - Intake or B23E Camshaft Position Sensor - Exhaust signal circuit terminal 3.
7. Service Mode active, momentarily touch the end of the fused jumper wire to ground while monitoring the scan tool Camshaft Position Active Counter. The Camshaft Position Active Counter should increment.

* Physical damage to the B23F Camshaft Position Sensor - Intake or B23E Camshaft Position Sensor - Exhaust sensor or the reluctor wheel
* Excessive play or looseness of the B23F Camshaft Position Sensor - Intake or B23E Camshaft Position Sensor - Exhaust sensor or the reluctor wheel
* Excessive camshaft end play
* Improper installation of the B23F Camshaft Position Sensor - Intake or B23E Camshaft Position Sensor - Exhaust sensor or the reluctor wheel
* Foreign material passing between the B23F Camshaft Position Sensor - Intake or B23E Camshaft Position Sensor - Exhaust sensor and the reluctor wheel
* The timing chain and tensioner for wear or damage

• If any of the above conditions exists, repair as necessary.

8. If all circuits test normal, replace the B23F Camshaft Position Sensor - Intake or B23E Camshaft Position Sensor - Exhaust sensor.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

* Camshaft Position Sensor Replacement (Exhaust) Camshaft Position Sensor Replacement (Exhaust)Camshaft Position Sensor Replacement (Intake) Camshaft Position Sensor Replacement (Intake)
* Camshaft Timing Chain Replacement Service and Repair
* Control Module References Control Module References for Engine Control Module replacement, setup, and programming

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