The P1014 trouble code is a manufacturer-specific powertrain code. Its exact definition depends entirely on the vehicle application, relating to either the Valvetronic system or the exhaust camshaft position actuator.
Because it is manufacturer-specific, the exact application must be verified. The code identifies a detected condition, and testing is required to identify the root cause.
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Key Takeaways
- P1014 is a manufacturer-specific powertrain code with definitions varying by automaker.
- On BMW and MINI applications, it indicates a Valvetronic eccentric shaft sensor parity or signal error.
- On GM, Chevrolet, Buick, and Suzuki applications, it points to an exhaust camshaft position actuator park position fault on Bank 2.
- Proper diagnosis requires verifying the exact factory definition and testing the relevant system circuits.
- Repairs range from fixing damaged wiring harnesses to replacing the eccentric shaft sensor or camshaft actuator solenoid.
P1014 Code Description and Implications
The P1014 code is a manufacturer-specific powertrain definition. Because it is not a generic SAE code, its exact meaning depends entirely on the vehicle application.
BMW and MINI applications: On these vehicles, P1014 indicates a fault in the Valvetronic eccentric shaft sensor circuit, such as a parity error or signal integrity problem. The engine control module monitors the sensor to control variable valve lift.
GM, Chevrolet, Buick, and Suzuki applications: On these vehicles, P1014 indicates an issue with the exhaust camshaft position actuator park position on Bank 2. The powertrain control module monitors the actuator solenoid circuit and sets this error code if it detects a performance or electrical fault.
Common Causes of the P1014 Code
Electrical faults and component wear are the primary triggers, though the specific causes vary by manufacturer.
For BMW and MINI Valvetronic systems: The issue may stem from a failed eccentric shaft sensor, an open or short in the wiring harness, or poor connector contact. Oil contamination inside the sensor connector is a known issue.
For GM and Suzuki camshaft actuator systems: The fault is caused by a failed exhaust camshaft position actuator solenoid, damaged wiring, low engine oil level, or low engine oil pressure preventing the actuator from reaching its park position.
Symptoms Associated With P1014
Symptoms vary drastically based on which system has detected the fault.
BMW and MINI applications: The primary symptom is reduced engine power, rough idling, and a drivetrain malfunction warning on the dashboard. The Valvetronic system may default to a fixed valve lift.
GM and Suzuki applications: You may experience an illuminated Check Engine Light, rough idling, engine stalling, or decreased fuel efficiency due to improper exhaust valve timing on Bank 2.
Diagnosing the P1014 Trouble Code
Accurate diagnosis requires confirming the exact factory definition for your specific make and model before proceeding.
BMW and MINI diagnosis: Inspect the eccentric shaft sensor connector for oil intrusion. Use a scan tool to monitor the Valvetronic angle data and check the sensor wiring for opens, shorts, or high resistance.
GM and Suzuki diagnosis: Verify the engine oil level and condition. Inspect the wiring harness between the powertrain control module and the exhaust camshaft actuator solenoid on Bank 2. Test the solenoid resistance and check for proper voltage and ground signals.
Repairing the P1014 Issue
Repairs must address the specific root cause identified during testing for your vehicle’s system.
Wiring and connector repairs: If an open, short, or oil-contaminated connector is found, repair the wiring or replace the connector pigtail using appropriate materials.
Component replacement: If the wiring is intact but the circuit remains faulty, the eccentric shaft sensor or the exhaust camshaft position actuator solenoid may require replacement.
Cost Considerations for P1014 Repairs
Cost depends on diagnostic time, component accessibility, required parts, programming requirements, and labor.
Replacing an eccentric shaft sensor on a BMW requires significant labor due to valve cover removal. Replacing a camshaft actuator solenoid on a GM vehicle is generally a more straightforward repair.
Prevention Strategies for Future Occurrences
While internal sensor failures cannot always be predicted, you can protect the external circuits from common damage.
Inspecting the Valvetronic sensor connector for early signs of oil wicking can help prevent oil from reaching the engine control module. Maintaining proper engine oil level and using the correct oil viscosity ensures the mechanical camshaft actuators operate as designed.
Troubleshooting Tips and Best Practices
Do not assume the engine control module or the entire actuator assembly requires replacement just because a P1014 code is present. A pinched wire or an oil-fouled connector will produce the exact same circuit fault reading.
Always check the engine oil level and condition first on GM applications. Sludge or low oil can prevent the actuator from moving, triggering the code.
Check for Technical Service Bulletins for your specific vehicle. Manufacturers frequently release updated sensor part numbers or revised valve cover gaskets to address chronic oil intrusion issues.
More OBD-II Codes
| P1002 | P1003 | P1005 | P1009 |
| P1011 | P1013 | P1015 | P1016 |
| P1018 | P1031 | P1032 | P1035 |
| P0010 | P0011 | P0012 | P0013 |
| P1106 | P1107 | P1118 | P1119 |
| P1121 | P1122 | P1123 | P1124 |
Frequently Asked Questions
Is P1014 a generic or manufacturer-specific code?
No. P1014 is a manufacturer-specific powertrain code. Its definition varies by brand, indicating a Valvetronic sensor fault on BMW or an exhaust camshaft actuator issue on GM vehicles.
Can I drive my car with a P1014 code?
If the code relates to the Valvetronic system, the vehicle may enter limp mode. If it affects the camshaft actuator, the engine may run poorly or stall. Extended driving is not recommended.
Will an oil change fix a P1014 code?
An oil change will not fix an electrical circuit fault. However, on GM applications, correcting a low oil level or removing sludge may restore mechanical actuator operation if the electrical tests pass.
Can oil leak into the eccentric shaft sensor connector?
Yes. On BMW applications, oil can wick through the eccentric shaft sensor wiring harness and reach the engine control module, causing severe electrical faults and requiring extensive harness replacement.
Does P1014 always mean the sensor or actuator is bad?
No. The code identifies a detected circuit condition. This is frequently caused by damaged wiring, a poor connector, or oil contamination. The component should only be replaced after electrical testing confirms failure.
What Should You Do About the P1014 Code?
Confirm the exact factory definition for your vehicle, then follow the applicable manufacturer diagnostic procedure. Because P1014 is manufacturer-specific, the diagnostic path for a Valvetronic sensor differs from an exhaust camshaft actuator circuit.
Inspect the relevant system and components, including wiring harnesses, connectors, sensors, and solenoids. Repair any confirmed faults, or replace the relevant system components only after testing verifies the failure.
