BMW DTC P117C – VVL-Relay Circuit High (Bank 2)
DTC P117C meaning on BMW
The DTC P117C code on a BMW indicates a fault in the Variable Valve Lift (VVL) relay circuit for Bank 2. This fault is related to the control of the variable valve lift system, which is responsible for adjusting the timing and lift of the engine’s intake and exhaust valves.
BMW DTC P117C symptoms
Symptoms of the DTC P117C code on a BMW may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Reduced engine performance
- Engine misfires
- Rough idling
- Decreased fuel efficiency
BMW DTC P117C causes
Common causes of the DTC P117C code on a BMW include:
- Faulty VVL relay
- Wiring issues in the VVL relay circuit
- Poor electrical connections
- Defective VVL solenoid
BMW DTC P117C seriousness
The DTC P117C code should not be ignored as it can lead to engine performance issues and potential damage if left unresolved. It is recommended to address this code promptly to prevent further complications.
How to diagnose DTC P117C on BMW
To diagnose the DTC P117C code on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the VVL relay and wiring for any visible damage
- Check the VVL solenoid for proper operation
- Test the electrical connections in the VVL relay circuit
How to fix DTC P117C on BMW
To fix the DTC P117C code on a BMW, the following steps may be taken:
- Replace the faulty VVL relay
- Repair any damaged wiring in the VVL relay circuit
- Ensure proper electrical connections are in place
- Replace the defective VVL solenoid if necessary
How to erase DTC P117C on BMW
After addressing the underlying issue causing the DTC P117C code on a BMW, the code can be erased using a diagnostic scanner. The scanner can clear the fault codes stored in the vehicle’s computer, resetting the Check Engine Light.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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