P26F5 – BMW DTC

BMW DTC P26F5 – Coolant Pump ‘C’ Control Circuit Low

DTC P26F5 meaning on BMW

The DTC P26F5 code on BMW vehicles indicates a fault in the coolant pump ‘C’ control circuit. This fault is detected by the engine control module (ECM) when it receives a signal indicating that the control circuit voltage is below the specified threshold.

BMW DTC P26F5 symptoms

Symptoms of the DTC P26F5 code on a BMW may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Engine overheating
• Reduced engine performance
• Increased fuel consumption

BMW DTC P26F5 causes

The common causes of the DTC P26F5 code on BMW vehicles include:

• Faulty coolant pump ‘C’
• Wiring issues in the coolant pump ‘C’ control circuit
• Defective engine control module (ECM)

BMW DTC P26F5 seriousness

Ignoring the DTC P26F5 code on a BMW can lead to serious engine damage due to overheating. It is important to address this issue promptly to prevent further complications and potential costly repairs.

How to diagnose DTC P26F5 on BMW

To diagnose the DTC P26F5 code on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the ECM
2. Inspect the coolant pump ‘C’ and its wiring for any visible damage or corrosion
3. Check the coolant pump ‘C’ control circuit for continuity and proper voltage
4. Test the engine control module (ECM) for proper operation

How to fix DTC P26F5 on BMW

To fix the DTC P26F5 code on a BMW, you can perform the following steps:

1. Replace the faulty coolant pump ‘C’ if necessary
2. Repair any damaged or corroded wiring in the coolant pump ‘C’ control circuit
3. If the ECM is found to be defective, replace it with a new one

How to erase DTC P26F5 on BMW

After fixing the underlying issue causing the DTC P26F5 code on a BMW, you can erase the code using a diagnostic scanner. Follow these steps:

1. Connect the diagnostic scanner to the vehicle’s OBD-II port
2. Navigate to the ¨Clear DTCs¨ or ¨Erase Codes¨ function on the scanner
3. Follow the on-screen prompts to clear the DTC P26F5 code from the ECM’s memory

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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