BMW DTC P0959 – Auto Shift Manual Mode Circuit Intermittent
DTC P0959 meaning on BMW
DTC P0959 on a BMW refers to the Auto Shift Manual Mode Circuit Intermittent. This diagnostic trouble code indicates that there is an intermittent issue with the circuit responsible for controlling the automatic transmission’s manual mode.
BMW DTC P0959 symptoms
Symptoms of DTC P0959 on a BMW may include:
- Difficulty shifting gears manually
- Unresponsive manual shift controls
- Warning lights on the dashboard
BMW DTC P0959 causes
Common causes of DTC P0959 on a BMW include:
- Faulty wiring or connectors in the auto shift manual mode circuit
- Defective manual shift control switch
- Issues with the transmission control module (TCM)
BMW DTC P0959 seriousness
While DTC P0959 may not always result in immediate drivability issues, it can affect the proper operation of the automatic transmission’s manual mode. Ignoring this code may lead to further transmission problems and potential safety concerns.
How to diagnose DTC P0959 on BMW
To diagnose DTC P0959 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer.
- Inspect the wiring and connectors in the auto shift manual mode circuit for any visible damage or corrosion.
- Test the manual shift control switch for proper functionality.
- Check the transmission control module (TCM) for any faults or errors.
How to fix DTC P0959 on BMW
To fix DTC P0959 on a BMW, you can try the following solutions:
- Repair or replace any damaged wiring or connectors in the auto shift manual mode circuit.
- Replace the manual shift control switch if it is found to be faulty.
- If the issue lies with the transmission control module (TCM), consider reprogramming or replacing it.
How to erase DTC P0959 on BMW
To erase DTC P0959 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer. Once the codes are cleared, you can test the vehicle to ensure that the issue has been resolved.
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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