BMW DTC P146F – Charge Air Cooler Coolant Pump RPM Regulation, Overcurrent
DTC P146F meaning on BMW
DTC P146F on a BMW indicates an issue with the Charge Air Cooler Coolant Pump RPM Regulation due to overcurrent. This fault code is triggered when the engine control module detects that the current flowing through the charge air cooler coolant pump exceeds the specified limit.
BMW DTC P146F symptoms
Symptoms of DTC P146F on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Reduced engine performance
- Increased fuel consumption
- Possible overheating of the charge air cooler system
BMW DTC P146F causes
The common causes of DTC P146F on a BMW are:
- Faulty charge air cooler coolant pump
- Short circuit or open circuit in the wiring of the coolant pump
- Defective engine control module
- Issues with the coolant pump relay
BMW DTC P146F seriousness
Ignoring DTC P146F on a BMW can lead to further damage to the charge air cooler system and potentially affect the engine’s performance. It is recommended to address this issue promptly to prevent any long-term consequences.
How to diagnose DTC P146F on BMW
To diagnose DTC P146F on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the charge air cooler coolant pump for any visible damage or signs of malfunction
- Check the wiring harness and connectors for any loose connections or damage
- Test the charge air cooler coolant pump for proper operation and current draw
How to fix DTC P146F on BMW
To fix DTC P146F on a BMW, you can consider the following steps:
- Replace the faulty charge air cooler coolant pump if necessary
- Repair any damaged wiring or connectors related to the coolant pump
- Check and replace the coolant pump relay if found defective
- Clear the fault code and perform a test drive to ensure the issue is resolved
How to erase DTC P146F on BMW
To erase DTC P146F on a BMW, you can use a diagnostic scanner to clear the fault code from the engine control module’s memory. After fixing the underlying issue causing the fault code, clearing it from the system will reset the Check Engine Light and ensure the repair was successful.