P0AE0 Fault Code

Hybrid Battery Negative Contactor Control Circuit High

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0AE0 code indicates an issue with the Hybrid Battery Negative Contactor Control Circuit. This fault is identified in hybrid and electric vehicles and pertains to the high voltage system components. When this code sets, it signals that the control circuit for the negative contactor has detected a problem, which may hinder the vehicle's ability to utilize hybrid battery power effectively.

What are the symptoms of the P0AE0 code?

Common symptoms associated with the P0AE0 code may include:

• Warning lights on the dashboard (usually the check engine light).
• Decreased hybrid system performance.
• Difficulty in starting the vehicle or powering the hybrid systems.
• Unexpected shut downs or hybrid system inoperability.

What causes the P0AE0 code?

Potential causes for the P0AE0 code can include:

• Malfunctioning control module for the hybrid battery negative contactor.
• Damaged wiring or poor connections in the control circuit.
• Faulty negative contactor relay.
• Issues with the hybrid battery pack itself or its internal components.

How to fix P0AE0?

To address the P0AE0 fault code, the following steps may be taken:

• Inspect the wiring and connectors in the hybrid battery negative contactor control circuit for any damage or corrosion.
• Test the negative contactor relay and replace it if necessary.
• Perform a reset of the battery control module and check for reoccurrence of the code after repairs.
• If the issue persists, further diagnostics may be needed to check the integrity of the hybrid battery and its control systems.