BMW DTC P0637 – Power Steering Control Circuit High
DTC P0637 meaning on BMW
DTC P0637 on a BMW indicates a fault in the power steering control circuit. This fault is specifically related to a high voltage condition detected in the power steering control module.
BMW DTC P0637 symptoms
Symptoms of DTC P0637 on a BMW may include:
- Loss of power steering assistance
- Stiff or heavy steering feel
- Warning light on the dashboard
BMW DTC P0637 causes
The common causes of DTC P0637 on a BMW include:
- Faulty power steering control module
- Short circuit or open circuit in the power steering control circuit
- Issues with the power steering motor
BMW DTC P0637 seriousness
DTC P0637 should be taken seriously as it can affect the proper functioning of the power steering system. Loss of power steering assistance can make the vehicle difficult to steer, especially at lower speeds or when parking.
How to diagnose DTC P0637 on BMW
To diagnose DTC P0637 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes from the power steering control module.
- Inspect the power steering control circuit for any visible damage or loose connections.
- Test the power steering motor for proper operation.
How to fix DTC P0637 on BMW
To fix DTC P0637 on a BMW, you may need to:
- Replace the faulty power steering control module.
- Repair any short circuits or open circuits in the power steering control circuit.
- Replace the power steering motor if necessary.
How to erase DTC P0637 on BMW
To erase DTC P0637 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the power steering control module. Once the issue has been fixed, clearing the fault codes will reset the system and turn off the warning light 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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