BMW DTC P1AE4 – Drive Motor Inverter Temperature Sensor ‘A’/’C’ Correlation
DTC P1AE4 meaning on BMW
The DTC P1AE4 code on a BMW indicates a Drive Motor Inverter Temperature Sensor ‘A’/’C’ Correlation issue. This means that there is a discrepancy between the readings from temperature sensor ‘A’ and temperature sensor ‘C’ in the drive motor inverter system.
BMW DTC P1AE4 symptoms
Symptoms of the BMW DTC P1AE4 code may include:
- Check Engine Light illuminated
- Reduced power or performance
- Abnormal temperature readings on the inverter system
BMW DTC P1AE4 causes
Common causes of the BMW DTC P1AE4 code include:
- Faulty drive motor inverter temperature sensors
- Wiring or connection issues in the temperature sensor circuit
- Internal faults in the drive motor inverter system
BMW DTC P1AE4 seriousness
The DTC P1AE4 code should be addressed promptly as it can lead to drivability issues and potential damage to the drive motor inverter system if left unresolved.
How to diagnose DTC P1AE4 on BMW
To diagnose the DTC P1AE4 code on a BMW, you can:
- Use a diagnostic scanner to retrieve the fault codes and freeze frame data
- Inspect the drive motor inverter temperature sensors and their wiring for any visible damage
- Perform a resistance test on the temperature sensors to check for proper functionality
How to fix DTC P1AE4 on BMW
To fix the DTC P1AE4 code on a BMW, you may need to:
- Replace the faulty drive motor inverter temperature sensors
- Repair any damaged wiring or connections in the temperature sensor circuit
- Clear the fault codes and perform a test drive to ensure the issue is resolved
How to erase DTC P1AE4 on BMW
To erase the DTC P1AE4 code on a BMW, you can:
- Use a diagnostic scanner to clear the fault codes
- Perform a battery reset or disconnect the battery for a few minutes to reset the system
- Ensure that the underlying issue causing the fault code has been addressed before clearing the code
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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