P1AF2
Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost
P1AF2 is an OBD-II diagnostic trouble code meaning: Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost. Common causes: damage to the insulation of high-voltage wires, high voltage battery fault. Estimated repair cost: $167–889.
Symptoms
- Check Engine light comes on
- Reduced motor power
- Problems with charging a high-voltage battery
- The car may go into emergency mode
- Possible warnings about high voltage system failure
Causes
- Damage to the insulation of high-voltage wires
- High voltage battery fault
- High Voltage System Grounding Problems
- Damage to motor components
- Motor control module malfunction
How to Fix
- Visual inspection of the high voltage system for damage
- Checking the insulation resistance of high-voltage circuits
- High voltage battery diagnostics
- Checking the grounding of the high voltage system
- Repair or replace damaged components
- Repair only from an authorized dealer
Related codes
FAQ
What does the P1AF2 code mean?
P1AF2 is an OBD-II diagnostic trouble code that indicates: Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost
What causes a P1AF2 error code?
The most common causes of P1AF2 include: Damage to the insulation of high-voltage wires; High voltage battery fault; High Voltage System Grounding Problems; Damage to motor components.
How do I fix a P1AF2 diagnostic trouble code?
To fix P1AF2: Visual inspection of the high voltage system for damage. Checking the insulation resistance of high-voltage circuits. High voltage battery diagnostics. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1AF2?
Do not drive — repair immediately
How much does it cost to fix P1AF2?
The estimated repair cost for P1AF2 is $167–889. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat