BMW DTC P1CD4 – DC/DC Converter High Voltage Current Sensor ‘B’ Circuit Current Out of Range High
DTC P1CD4 meaning on BMW
The DTC P1CD4 code on a BMW indicates an issue with the DC/DC converter high voltage current sensor ‘B’ circuit current being out of range high. This means that the sensor responsible for monitoring the current in the high voltage circuit is detecting a current level that is above the expected range.
BMW DTC P1CD4 symptoms
Symptoms of the DTC P1CD4 code on a BMW may include:
- Check Engine Light illuminated
- Reduced power or performance
- Vehicle may go into a reduced power mode
BMW DTC P1CD4 causes
Possible causes of the DTC P1CD4 code on a BMW include:
- Faulty high voltage current sensor ‘B’
- Wiring or connection issues in the sensor circuit
- High voltage system malfunction
BMW DTC P1CD4 seriousness
The DTC P1CD4 code should be addressed promptly as it can lead to reduced performance and potential safety hazards. Ignoring this code may result in further damage to the high voltage system of the vehicle.
How to diagnose DTC P1CD4 on BMW
To diagnose the DTC P1CD4 code on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the high voltage current sensor ‘B’ and its circuit for any visible damage or loose connections
- Test the sensor’s resistance and voltage readings to determine if it is functioning correctly
- Check the high voltage system for any other related issues
How to fix DTC P1CD4 on BMW
To fix the DTC P1CD4 code on a BMW, the following steps may be taken:
- Replace the faulty high voltage current sensor ‘B’
- Repair any damaged wiring or connections in the sensor circuit
- Clear the fault codes and test drive the vehicle to ensure the issue has been resolved
How to erase DTC P1CD4 on BMW
To erase the DTC P1CD4 code on a BMW, a diagnostic scanner can be used to clear the fault codes stored in the vehicle’s computer system. Once the codes are cleared, the Check Engine Light should turn off. It is important to 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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