BMW DTC P279C – Transfer Case Gear Neutral Incorrect Ratio
DTC P279C meaning on BMW
The Diagnostic Trouble Code (DTC) P279C for BMW indicates that there is an issue with the Transfer Case Gear Neutral Incorrect Ratio. This means that the transfer case is not in the correct gear ratio when it is supposed to be in neutral.
BMW DTC P279C symptoms
Symptoms of the DTC P279C on a BMW may include:
- Difficulty shifting gears
- Strange noises coming from the transfer case
- Warning lights on the dashboard
- Loss of power or acceleration
BMW DTC P279C causes
Common causes of the DTC P279C on a BMW include:
- Faulty transfer case actuator
- Issues with the transfer case control module
- Wiring or connection problems
- Low transfer case fluid level
BMW DTC P279C seriousness
The DTC P279C should be addressed promptly as it can lead to drivability issues and potential damage to the transfer case components if left unresolved. It is recommended to diagnose and fix the issue as soon as possible.
How to diagnose DTC P279C on BMW
To diagnose the DTC P279C on a BMW, a mechanic would typically:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the transfer case actuator and control module for any visible damage
- Check the wiring and connections for any signs of wear or corrosion
- Perform a transfer case fluid level check
How to fix DTC P279C on BMW
To fix the DTC P279C on a BMW, the following steps may be taken:
- Replace the faulty transfer case actuator
- Repair or replace any damaged wiring or connections
- Refill the transfer case with the correct fluid level
- Reset the transfer case adaptations using a diagnostic scanner
How to erase DTC P279C on BMW
To erase the DTC P279C on a BMW, the fault codes can be cleared using a diagnostic scanner. After fixing the underlying issue causing the fault code, the scanner can be used to reset the codes and clear the warning lights on the dashboard.
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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