What does the P005D code mean?
The P005D trouble code, applicable to all car manufacturers, means “B Camshaft Profile Control Stuck On (Bank 2)“.
Background Information: The camshaft’s function is to control the opening and closing of the valves. In a variable valve timing system, the electronic camshaft control valve (or oil control valve, OCV) adjusts the camshaft angle by changing the oil pressure to the camshaft adjuster (mechanical) based on commands from the engine control module (ECM), ensuring that the valves open and close at the optimal time. This optimizes engine efficiency and power across all speed ranges. This fault code indicates that the B (exhaust/right/rear) camshaft profile control is malfunctioning or stuck in the open position.
Symptoms of P005D OBD II Trouble Code:
- Low power
- Poor driving performance
- Reduced fuel economy
- Abnormal throttle response
- General decrease in efficiency
- Altered power band
Common Causes of P005D OBD II Trouble Code:
- Lack of oil maintenance
- Incorrect oil type
- Contaminated oil
- Faulty oil solenoid valve
- Stuck valve
- Broken wire
- Electrical short circuit (internal or mechanical short)
- ECM (Engine Control Module) issues
Common vehicles with P005C trouble code issues:
- Mazda Miata
- Audi 200
- Maserati Spyder
- Chevrolet Volt 2
- Chrysler Grand Voyager
- Porsche Carrera GT
- Mitsubishi Space Liner
- AMC Gremlin
- Toyota 105
- Jaguar XJ-6
- Ginetta G33
- Willys Ace
How to diagnose and repair a P005D fault?
- First, you need to check the overall integrity of the engine oil currently in use. Check the oil level and the cleanliness of the oil itself. If the oil is black or dark, replace it along with the filter. Adhering to the recommended oil maintenance schedule is also crucial. Proper oil maintenance is vital because contaminated oil can cause malfunctions in the engine’s hydraulic system, including the camshaft profile control system. Lack of oil maintenance can also lead to sludge formation, affecting various engine systems. Please refer to your service manual for the recommended schedule and compare it to your service records.
Note: Be sure to use the manufacturer’s recommended oil viscosity. Using oil that is too thick or too thin can cause problems in the long run, so be sure to choose the correct oil.
- Locate the wiring harness, wires, and connectors used in the camshaft profile control circuit. Use a wiring diagram to identify these wires. You can find diagrams in your vehicle’s specific service manual. Check all wires and harnesses for signs of damage or wear. Also, check the connections at the connectors, as connectors can become loose due to broken latches, especially in areas susceptible to engine vibration.
Note: It is recommended to use electrical contact cleaner on the pins and connections when connecting and disconnecting connectors, and also for future maintenance.
Severity of P005D OBD II Fault Code
The severity is rated as moderate. That being said, this is just a general guideline. The severity can vary greatly depending on your specific symptoms and defects. However, generally speaking, any hydraulic issues or those related to internal engine systems should be repaired as soon as possible. This is not an area of the vehicle you want to ignore, so if necessary, it’s best to have a professional diagnose and repair it using an OBD2 scanner!
