BMW DTC P2602 – Coolant Pump ‘A’ Control Circuit Low
DTC P2602 meaning on BMW
DTC P2602 on a BMW indicates a fault with the Coolant Pump ‘A’ Control Circuit being detected as low. This means that the engine control module (ECM) has detected a lower than expected voltage signal from the coolant pump control circuit.
BMW DTC P2602 symptoms
Symptoms of DTC P2602 on a BMW may include:
- Check Engine Light illuminated
- Engine overheating
- Reduced engine performance
BMW DTC P2602 causes
Common causes of DTC P2602 on a BMW include:
- Faulty coolant pump
- Wiring or connection issues in the coolant pump circuit
- Defective engine control module (ECM)
BMW DTC P2602 seriousness
DTC P2602 should be addressed promptly as it can lead to engine overheating and potential damage if left unresolved. Ignoring this fault may result in more severe engine issues and possible breakdowns.
How to diagnose DTC P2602 on BMW
To diagnose DTC P2602 on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes and freeze frame data
- Inspect the coolant pump and its wiring for any visible damage or corrosion
- Check the voltage and ground connections to the coolant pump
- If necessary, perform a continuity test on the wiring harness
How to fix DTC P2602 on BMW
To fix DTC P2602 on a BMW, you can try the following solutions:
- Replace the faulty coolant pump
- Repair or replace any damaged wiring or connectors in the coolant pump circuit
- If needed, replace the engine control module (ECM)
How to erase DTC P2602 on BMW
To erase DTC P2602 on a BMW, you can use a diagnostic scanner to clear the fault code from the ECM’s memory. After fixing the underlying issue, you can reset the code and monitor the system for any reoccurrence.
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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