BMW DTC P0C73 – Motor Electronics Coolant Pump ‘A’ Control Performance
DTC P0C73 meaning on BMW
The DTC P0C73 fault code on BMW vehicles indicates an issue with the Motor Electronics Coolant Pump ‘A’ control performance. This fault code is specific to the coolant pump control system and is triggered when the control module detects a performance deviation or malfunction in the operation of the coolant pump.
BMW DTC P0C73 symptoms
Symptoms of the DTC P0C73 on a BMW may include:
- Engine overheating
- Reduced engine performance
- Check Engine Light (CEL) illuminated on the dashboard
- Increased fuel consumption
BMW DTC P0C73 causes
Common causes of the DTC P0C73 on BMW vehicles include:
- Defective coolant pump
- Wiring or connection issues in the coolant pump circuit
- Faulty motor electronics coolant pump control module
- Low coolant level
BMW DTC P0C73 seriousness
The DTC P0C73 fault code should be addressed promptly as it directly affects the cooling system of the vehicle. Ignoring this fault code can lead to engine overheating, potential engine damage, and compromised vehicle performance.
How to diagnose DTC P0C73 on BMW
To diagnose the DTC P0C73 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s control module
- Inspect the coolant pump for any visible signs of damage or leaks
- Check the wiring and connections in the coolant pump circuit for any issues
- Test the motor electronics coolant pump control module for proper functionality
- Verify the coolant level in the system
How to fix DTC P0C73 on BMW
To fix the DTC P0C73 on a BMW, the following steps may be taken:
- Replace the defective coolant pump if necessary
- Repair any wiring or connection issues in the coolant pump circuit
- Replace the faulty motor electronics coolant pump control module
- Ensure the coolant level is topped up to the correct level
How to erase DTC P0C73 on BMW
To erase the DTC P0C73 fault code on a BMW, a diagnostic scanner can be used to clear the code from the vehicle’s control module memory. Once the issue has been addressed and fixed, the fault code can be cleared to reset the Check Engine Light and ensure the repair was successful.
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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