P0AE4
Hybrid/EV Battery Precharge Contactor A Control Circuit/Open
P0AE4 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Precharge Contactor A Control Circuit/Open. Common causes: open contactor control circuit, precharge contactor fault. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- The car goes into emergency mode
- Inability to start the electric motor
- Error message on the dashboard
Causes
- Open contactor control circuit
- Precharge contactor fault
- High Voltage Relay Problems
- Malfunction of the hybrid system control module
- Corrosion or poor contact in connectors
How to Fix
- Check the integrity of the contactor control circuit
- Check the resistance and operation of the precharge contactor
- Inspect connectors and connections for corrosion
- Check high voltage relay
- Diagnose the hybrid system control module
- Repair only from an authorized dealer
Related codes
Error P0AE4 by Vehicle Brand
FAQ
What does the P0AE4 code mean?
P0AE4 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Precharge Contactor A Control Circuit/Open
What causes a P0AE4 error code?
The most common causes of P0AE4 include: Open contactor control circuit; Precharge contactor fault; High Voltage Relay Problems; Malfunction of the hybrid system control module.
How do I fix a P0AE4 diagnostic trouble code?
To fix P0AE4: Check the integrity of the contactor control circuit. Check the resistance and operation of the precharge contactor. Inspect connectors and connections for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0AE4?
Do not drive — repair immediately
How much does it cost to fix P0AE4?
The estimated repair cost for P0AE4 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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