BMW DTC P1CA4 – AC/DC Converter Resonant Inductor Temperature Sensor Circuit Temperature Implausible High
DTC P1CA4 meaning on BMW
- DTC: Diagnostic Trouble Code
- P1CA4: AC/DC Converter Resonant Inductor Temperature Sensor Circuit Temperature Implausible High
- This code indicates that the temperature sensor circuit for the AC/DC converter resonant inductor is reporting a temperature that is unreasonably high.
BMW DTC P1CA4 symptoms
- Check Engine Light may illuminate
- Reduced engine performance
- Possible overheating issues
BMW DTC P1CA4 causes
- Faulty temperature sensor
- Wiring or connection issues in the sensor circuit
- AC/DC converter malfunction
BMW DTC P1CA4 seriousness
- If left unresolved, it can lead to further damage to the AC/DC converter system
- May result in poor vehicle performance and potential overheating
How to diagnose DTC P1CA4 on BMW
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the temperature sensor and its wiring for any visible damage
- Check the AC/DC converter for proper operation
How to fix DTC P1CA4 on BMW
- Replace the faulty temperature sensor if necessary
- Repair any damaged wiring or connections in the sensor circuit
- If the AC/DC converter is faulty, it may need to be replaced
How to erase DTC P1CA4 on BMW
- After fixing the underlying issue, use a diagnostic scanner to clear the fault codes
- Ensure that the Check Engine Light is no longer illuminated
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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