BMW DTC P0964 – Pressure Control Solenoid ‘B’ Control Circuit/Open
DTC P0964 meaning on BMW
The Diagnostic Trouble Code (DTC) P0964 for BMW refers to an issue with the Pressure Control Solenoid ‘B’ Control Circuit being open. This means that the powertrain control module (PCM) has detected an open circuit in the control circuit of the pressure control solenoid ‘B’, which is responsible for regulating hydraulic pressure within the transmission.
BMW DTC P0964 symptoms
Symptoms of DTC P0964 on a BMW may include:
- Harsh shifting
- Transmission slipping
- Transmission overheating
- Transmission not shifting into certain gears
- Transmission going into limp mode
BMW DTC P0964 causes
The common causes of DTC P0964 on a BMW include:
- Faulty pressure control solenoid ‘B’
- Open or short circuit in the wiring harness
- Corroded or loose connectors
- Internal transmission issues
BMW DTC P0964 seriousness
DTC P0964 should be addressed promptly as it can lead to further transmission problems if left unresolved. Ignoring this issue may result in more severe damage to the transmission components and potentially lead to costly repairs.
How to diagnose DTC P0964 on BMW
To diagnose DTC P0964 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes from the PCM.
- Inspect the wiring harness for any signs of damage, corrosion, or loose connections.
- Check the resistance of the pressure control solenoid ‘B’ to determine if it is faulty.
- Perform a visual inspection of the transmission for any signs of internal damage.
How to fix DTC P0964 on BMW
To fix DTC P0964 on a BMW, you can try the following solutions:
- Replace the pressure control solenoid ‘B’ if it is found to be faulty.
- Repair or replace any damaged wiring harness or connectors.
- Address any internal transmission issues that may be causing the fault code.
- Clear the fault codes from the PCM after completing the repairs.
How to erase DTC P0964 on BMW
To erase DTC P0964 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the PCM. Once the repairs have been completed and the underlying issue causing the fault code has been resolved, you can reset the PCM to clear the DTC P0964 code.
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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