P2C43
Battery Isolation/Voltage Stabilization Control Circuit
P2C43 is an OBD-II diagnostic trouble code meaning: Battery Isolation/Voltage Stabilization Control Circuit. Common causes: damage to the insulation of high-voltage cables, insulation monitoring sensor fault. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Reduced engine power
- The vehicle goes into emergency mode
- Problems with charging a high-voltage battery
- Warning messages on the dashboard
Causes
- Damage to the insulation of high-voltage cables
- Insulation monitoring sensor fault
- Problems with the high voltage system control module
- Short circuit in control circuit
- Contact corrosion in a high voltage system
How to Fix
- Visual inspection of high-voltage cables for damage
- Checking the insulation resistance of a high voltage system
- Diagnostics of the insulation monitoring sensor
- Checking the integrity of the control circuit
- Scan the High Voltage Control Module for errors
- Repair only from an authorized dealer
Related codes
Error P2C43 by Vehicle Brand
FAQ
What does the P2C43 code mean?
P2C43 is an OBD-II diagnostic trouble code that indicates: Battery Isolation/Voltage Stabilization Control Circuit
What causes a P2C43 error code?
The most common causes of P2C43 include: Damage to the insulation of high-voltage cables; Insulation monitoring sensor fault; Problems with the high voltage system control module; Short circuit in control circuit.
How do I fix a P2C43 diagnostic trouble code?
To fix P2C43: Visual inspection of high-voltage cables for damage. Checking the insulation resistance of a high voltage system. Diagnostics of the insulation monitoring sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2C43?
Limited driving only, diagnose soon
How much does it cost to fix P2C43?
The estimated repair cost for P2C43 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat