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P0C74 – BMW DTC

BMW DTC P0C74 – Motor Electronics Coolant Pump ‘B’ Control Performance

DTC P0C74 meaning on BMW

The DTC P0C74 fault code on BMW vehicles indicates an issue with the Motor Electronics Coolant Pump ‘B’ control performance. This fault code is specific to the coolant pump control system in the vehicle.

BMW DTC P0C74 symptoms

Symptoms of the DTC P0C74 on a BMW may include:

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

BMW DTC P0C74 causes

Common causes of the DTC P0C74 on BMW vehicles include:

  • Faulty coolant pump ‘B’
  • Wiring or connection issues in the coolant pump circuit
  • Software or control module issues

BMW DTC P0C74 seriousness

The DTC P0C74 fault code should be addressed promptly as it directly affects the cooling system of the vehicle. Ignoring this fault can lead to engine overheating and potential damage.

How to diagnose DTC P0C74 on BMW

To diagnose the DTC P0C74 on a BMW, you can follow these steps:

  1. Use a diagnostic scanner to retrieve the fault code and freeze frame data
  2. Inspect the coolant pump ‘B’ for any visible damage or leaks
  3. Check the wiring and connections related to the coolant pump
  4. Perform a coolant pump functionality test using diagnostic tools

How to fix DTC P0C74 on BMW

To fix the DTC P0C74 on a BMW, you can consider the following actions:

  1. Replace the faulty coolant pump ‘B’
  2. Repair any damaged wiring or connections in the coolant pump circuit
  3. Update software or replace control modules if necessary

How to erase DTC P0C74 on BMW

To erase the DTC P0C74 fault code on a BMW, you can use a diagnostic scanner to clear the code after the underlying issue has been resolved. This will reset the Check Engine Light and remove the fault code from the vehicle’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

← All BMW Diagnostic Trouble Codes

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