BMW DTC P1C22 – DC/DC Converter High Voltage Current Sensor Circuit Current Implausible
DTC P1C22 meaning on BMW
DTC P1C22 on a BMW refers to the DC/DC Converter High Voltage Current Sensor Circuit Current Implausible fault. This diagnostic trouble code indicates that there is an issue with the high voltage current sensor circuit in the DC/DC converter system of the vehicle.
BMW DTC P1C22 symptoms
Symptoms of the DTC P1C22 on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Reduced power or performance
- Vehicle may go into a reduced power mode
BMW DTC P1C22 causes
The possible causes of the DTC P1C22 on a BMW include:
- Faulty high voltage current sensor
- Wiring or connection issues in the current sensor circuit
- Internal fault in the DC/DC converter
BMW DTC P1C22 seriousness
The DTC P1C22 is a serious fault that should be addressed promptly. Ignoring this fault can lead to further damage to the vehicle’s electrical system and may result in drivability issues.
How to diagnose DTC P1C22 on BMW
To diagnose the DTC P1C22 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 and its wiring for any visible damage
- Test the current sensor for proper operation
- Check the connections and wiring in the circuit for any loose or damaged components
How to fix DTC P1C22 on BMW
To fix the DTC P1C22 on a BMW, the following steps may be taken:
- Replace the faulty high voltage current sensor
- Repair any damaged wiring or connections in the circuit
- If the issue persists, the DC/DC converter may need to be replaced
How to erase DTC P1C22 on BMW
After the issue causing the DTC P1C22 on a BMW has been resolved, the fault codes can be cleared using a diagnostic scanner. This will erase the DTC P1C22 code from the vehicle’s memory and turn off the Check Engine Light.
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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