P26F7 – BMW DTC

BMW DTC P26F7 – Coolant Pump ‘C’ Supply Voltage Circuit

DTC P26F7 meaning on BMW

The DTC P26F7 fault code on BMW vehicles indicates an issue with the Coolant Pump ‘C’ Supply Voltage Circuit. This fault code is specific to the coolant pump ‘C’ and relates to a problem with the electrical supply voltage to the pump.

BMW DTC P26F7 symptoms

Symptoms of the DTC P26F7 Coolant Pump ‘C’ Supply Voltage Circuit fault may include:

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

BMW DTC P26F7 causes

Common causes of the DTC P26F7 fault code on BMW vehicles include:

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

BMW DTC P26F7 seriousness

The DTC P26F7 fault code should be addressed promptly to prevent potential engine damage due to overheating. Ignoring this fault code can lead to more severe issues and costly repairs in the future.

How to diagnose DTC P26F7 on BMW

To diagnose the DTC P26F7 fault code on a BMW, follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the ECM.
2. Inspect the coolant pump ‘C’ for any visible signs of damage or leaks.
3. Check the wiring and connectors in the coolant pump circuit for any loose connections or corrosion.
4. Perform a voltage test on the coolant pump to ensure it is receiving the correct supply voltage.

How to fix DTC P26F7 on BMW

To fix the DTC P26F7 fault code on a BMW, consider the following steps:

1. Replace the faulty coolant pump ‘C’ if it is found to be defective.
2. Repair any damaged wiring or connectors in the coolant pump circuit.
3. If the ECM is faulty, consider replacing or reprogramming it as necessary.
4. Ensure the coolant level is topped up to the correct level.

How to erase DTC P26F7 on BMW

To erase the DTC P26F7 fault code on a BMW, follow these steps:

1. Use a diagnostic scanner to clear the fault codes stored in the ECM.
2. After clearing the fault codes, drive the vehicle to see if the Check Engine Light re-illuminates.
3. If the fault code does not reappear, the issue may have been resolved successfully.

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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