BMW DTC P2508 – ECM/PCM Power Input Signal High
DTC P2508 meaning on BMW
DTC P2508 on a BMW indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected a high voltage signal on the power input circuit. This fault code typically points to an issue with the power supply to the ECM/PCM.
BMW DTC P2508 symptoms
Symptoms of DTC P2508 on a BMW may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Engine running rough or stalling
- Loss of power or acceleration
- Difficulty starting the engine
BMW DTC P2508 causes
Common causes of DTC P2508 on a BMW include:
- Faulty ECM/PCM power supply
- Wiring or connection issues in the power input circuit
- Defective ECM/PCM
BMW DTC P2508 seriousness
DTC P2508 should not be ignored as it can lead to drivability issues and potential damage to other engine components. It is recommended to address this fault code promptly to prevent further complications.
How to diagnose DTC P2508 on BMW
To diagnose DTC P2508 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the power input circuit for any visible damage or loose connections
- Check the voltage supply to the ECM/PCM
- Perform a continuity test on the wiring harness
How to fix DTC P2508 on BMW
To fix DTC P2508 on a BMW, the following steps may be taken:
- Repair or replace any damaged wiring or connectors in the power input circuit
- Check and repair the power supply to the ECM/PCM
- If necessary, replace the ECM/PCM with a new unit
How to erase DTC P2508 on BMW
To erase DTC P2508 on a BMW, you can use a diagnostic scanner to clear the fault code from the ECM/PCM memory. After fixing the underlying issue, clearing the code will reset the Check Engine Light and ensure that the fault has been addressed.
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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