BMW DTC P26DA – Engine Coolant Pump Clutch Control Circuit High
DTC P26DA meaning on BMW
DTC P26DA on a BMW refers to the Engine Coolant Pump Clutch Control Circuit High. This diagnostic trouble code indicates that the control circuit for the engine coolant pump clutch is experiencing a high voltage condition, which can lead to improper operation of the coolant pump.
BMW DTC P26DA symptoms
Symptoms of DTC P26DA on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Engine overheating
- Reduced engine performance
- Increased fuel consumption
BMW DTC P26DA causes
The common causes of DTC P26DA on a BMW include:
- Faulty engine coolant pump clutch
- Wiring or connector issues in the coolant pump clutch control circuit
- Defective engine coolant temperature sensor
- Software issues in the engine control module
BMW DTC P26DA seriousness
Ignoring DTC P26DA on a BMW can lead to serious consequences such as engine overheating, which may result in engine damage and potential breakdown. It is important to address this issue promptly to prevent further damage to the vehicle.
How to diagnose DTC P26DA on BMW
To diagnose DTC P26DA on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the engine control module
- Inspect the engine coolant pump clutch and its control circuit for any visible damage or corrosion
- Check the wiring and connectors associated with the coolant pump clutch for continuity and proper connection
- Test the engine coolant temperature sensor for proper operation
How to fix DTC P26DA on BMW
To fix DTC P26DA on a BMW, the following steps may be taken:
- Replace the faulty engine coolant pump clutch if it is determined to be the cause of the issue
- Repair or replace any damaged wiring or connectors in the coolant pump clutch control circuit
- Replace the engine coolant temperature sensor if found to be defective
- Update the engine control module software to address any software-related issues
How to erase DTC P26DA on BMW
After fixing the underlying issue causing DTC P26DA on a BMW, the fault codes can be cleared using a diagnostic scanner. This will reset the Check Engine Light and erase the DTC from the engine control module’s memory. It is important to ensure that the issue has been properly addressed before clearing the fault codes.
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.