P1AF0
Drive Motor 1 Control Module Hybrid/EV Battery Voltage System Isolation Lost
P1AF0 is an OBD-II diagnostic trouble code meaning: Drive Motor 1 Control Module Hybrid/EV Battery Voltage System Isolation Lost. Common causes: damage to the insulation of high-voltage cables, problems with high voltage battery. Estimated repair cost: $167–556.
Symptoms
- Check Engine light comes on
- High voltage system fault warning appears
- Reduced engine power
- The car may go into emergency mode
- Possible problems with charging the hybrid battery
Causes
- Damage to the insulation of high-voltage cables
- Problems with high voltage battery
- Motor controller malfunction
- Damage to high voltage system components
- Corrosion or moisture ingress into high voltage connections
How to Fix
- Carry out diagnostics of the high-voltage system
- Check the integrity of the insulation of all high-voltage cables
- Test the condition of the high-voltage battery
- Check the operation of the motor controller
- Repair only from an authorized dealer
Related codes
FAQ
What does the P1AF0 code mean?
P1AF0 is an OBD-II diagnostic trouble code that indicates: Drive Motor 1 Control Module Hybrid/EV Battery Voltage System Isolation Lost
What causes a P1AF0 error code?
The most common causes of P1AF0 include: Damage to the insulation of high-voltage cables; Problems with high voltage battery; Motor controller malfunction; Damage to high voltage system components.
How do I fix a P1AF0 diagnostic trouble code?
To fix P1AF0: Carry out diagnostics of the high-voltage system. Check the integrity of the insulation of all high-voltage cables. Test the condition of the high-voltage battery. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1AF0?
Do not drive — repair immediately
How much does it cost to fix P1AF0?
The estimated repair cost for P1AF0 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat