P26F6 – BMW DTC

BMW DTC P26F6 – Coolant Pump ‘C’ Control Circuit High

DTC P26F6 meaning on BMW

DTC P26F6 on a BMW refers to a fault in the coolant pump ‘C’ control circuit. This diagnostic trouble code indicates that the engine control module (ECM) has detected a high voltage condition in the control circuit of the coolant pump ‘C’.

BMW DTC P26F6 symptoms

Symptoms of DTC P26F6 in a BMW may include:

• Check Engine Light illuminated on the dashboard
• Engine overheating
• Reduced engine performance

BMW DTC P26F6 causes

Common causes of DTC P26F6 in a BMW include:

• Faulty coolant pump ‘C’
• Short circuit or open circuit in the control circuit
• Faulty engine control module (ECM)

BMW DTC P26F6 seriousness

DTC P26F6 should be addressed promptly as it can lead to engine overheating and potential damage if left unresolved. Ignoring this fault may result in further complications and costly repairs.

How to diagnose DTC P26F6 on BMW

To diagnose DTC P26F6 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’ and its control circuit for any visible damage or loose connections.
3. Test the voltage and continuity in the control circuit using a multimeter.
4. Check for any signs of water intrusion or corrosion in the electrical connectors.

How to fix DTC P26F6 on BMW

To fix DTC P26F6 on a BMW, consider the following steps:

1. Replace the faulty coolant pump ‘C’ if necessary.
2. Repair any damaged wiring or connectors in the control circuit.
3. If the ECM is found to be faulty, replace it with a new one.
4. Clear the fault codes using a diagnostic scanner after completing the repairs.

How to erase DTC P26F6 on BMW

To erase DTC P26F6 on a BMW, use a diagnostic scanner to clear the fault codes stored in the ECM. Ensure that the underlying issue causing the fault code has been addressed and resolved before clearing the code to prevent it from reoccurring.

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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