BMW DTC P1C86 – Universal Charger Extension Control Module AC Charger Temperature Sensor Circuit Low
DTC P1C86 meaning on BMW
The DTC P1C86 fault code on BMW vehicles indicates an issue with the Universal Charger Extension Control Module AC Charger Temperature Sensor Circuit registering a low voltage reading. This sensor is responsible for monitoring the temperature of the AC charger during charging processes.
BMW DTC P1C86 symptoms
Symptoms of the BMW DTC P1C86 code may include:
- Check Engine Light (MIL) illuminated on the dashboard
- Reduced charging efficiency or speed
- Potential charging interruptions or failures
BMW DTC P1C86 causes
Common causes of the BMW DTC P1C86 fault code include:
- Defective AC charger temperature sensor
- Wiring or connection issues in the temperature sensor circuit
- Faulty Universal Charger Extension Control Module
BMW DTC P1C86 seriousness
While the BMW DTC P1C86 code may not directly affect the drivability of the vehicle, it can lead to charging inefficiencies and potential charging system malfunctions if left unresolved. It is recommended to address this issue promptly to ensure proper charging operation.
How to diagnose DTC P1C86 on BMW
To diagnose the DTC P1C86 fault code on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the specific fault code and related data
- Inspect the AC charger temperature sensor and its wiring for any visible damage or corrosion
- Check the connections to the Universal Charger Extension Control Module for proper contact
- Perform a temperature sensor circuit test to verify functionality
How to fix DTC P1C86 on BMW
To address the BMW DTC P1C86 fault code, you can consider the following solutions:
- Replace the faulty AC charger temperature sensor if found defective
- Repair any damaged wiring or connections in the temperature sensor circuit
- If the issue persists, replace the Universal Charger Extension Control Module
- Clear the fault code memory after completing the repairs
How to erase DTC P1C86 on BMW
To erase the DTC P1C86 fault code on a BMW, you can use a diagnostic scanner to clear the code from the vehicle’s memory. After addressing the underlying issue causing the fault code, perform a code clearing procedure to reset the system and ensure the code does not reappear.
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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