BMW DTC P261A – Coolant Pump ‘B’ Control Circuit/Open
DTC P261A meaning on BMW
The Diagnostic Trouble Code (DTC) P261A for BMW indicates an issue with the Coolant Pump ‘B’ Control Circuit being open. This means that there is a malfunction in the circuit that controls the operation of the coolant pump ‘B’ in the vehicle’s cooling system.
BMW DTC P261A symptoms
Symptoms of the DTC P261A on a BMW may include:
- Engine overheating
- Check Engine Light (CEL) illuminated on the dashboard
- Reduced engine performance
- Increased fuel consumption
BMW DTC P261A causes
The common causes of the DTC P261A on a BMW include:
- Faulty coolant pump ‘B’
- Open or short circuit in the wiring related to the coolant pump ‘B’
- Defective Engine Control Module (ECM)
BMW DTC P261A seriousness
The DTC P261A should be addressed promptly as it can lead to engine overheating and potential damage if left unresolved. Ignoring this issue may result in costly repairs and possible engine failure.
How to diagnose DTC P261A on BMW
To diagnose the DTC P261A on a BMW, follow these steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the ECM.
- Inspect the coolant pump ‘B’ and its wiring for any visible damage or loose connections.
- Check the coolant pump ‘B’ for proper operation and continuity.
- Test the ECM for any faults or malfunctions related to the coolant pump ‘B’ control circuit.
How to fix DTC P261A on BMW
To fix the DTC P261A on a BMW, consider the following steps:
- Replace the faulty coolant pump ‘B’ if it is found to be defective.
- Repair any open or short circuits in the wiring related to the coolant pump ‘B’.
- If the ECM is faulty, replace or reprogram it as necessary.
How to erase DTC P261A on BMW
To erase the DTC P261A on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECM. After addressing the underlying issue causing the fault code, clearing the code will reset the Check Engine Light and ensure that the repair was successful.
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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.