BMW DTC P24A9 – EGR Cooler Coolant Pump Control Circuit Low
DTC P24A9 meaning on BMW
The DTC P24A9 code on a BMW indicates a fault in the EGR (Exhaust Gas Recirculation) Cooler Coolant Pump Control Circuit. This fault is related to the control circuit of the coolant pump that regulates the temperature of the EGR cooler in the vehicle’s emissions system.
BMW DTC P24A9 symptoms
Symptoms of the DTC P24A9 code on a BMW may include:
- Check Engine Light (MIL) illuminated on the dashboard
- Reduced engine performance
- Increased fuel consumption
- Possible engine overheating
BMW DTC P24A9 causes
Common causes of the DTC P24A9 code on a BMW include:
- Faulty EGR Cooler Coolant Pump
- Wiring or connector issues in the coolant pump circuit
- Defective coolant temperature sensor
- Software or programming issues
BMW DTC P24A9 seriousness
The DTC P24A9 code should not be ignored as it can lead to reduced engine efficiency and potential damage if left unresolved. It is recommended to address this issue promptly to prevent further complications.
How to diagnose DTC P24A9 on BMW
To diagnose the DTC P24A9 code on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s ECU
- Inspect the EGR Cooler Coolant Pump and its wiring for any visible damage or corrosion
- Check the coolant pump control circuit for proper voltage and continuity
- Test the coolant temperature sensor for accuracy
How to fix DTC P24A9 on BMW
To fix the DTC P24A9 code on a BMW, the following steps may be taken:
- Replace the faulty EGR Cooler Coolant Pump if necessary
- Repair any damaged wiring or connectors in the coolant pump circuit
- Replace the coolant temperature sensor if it is found to be defective
- Update the vehicle’s software or programming as needed
How to erase DTC P24A9 on BMW
After the issue causing the DTC P24A9 code has been resolved, the code can be erased using a diagnostic scanner that has the capability to clear fault codes from the ECU. Once the code is cleared, the Check Engine Light should turn off.
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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