P0AA8

What it means

This code indicates hybrid/ev battery voltage isolation sensor circuit range/performance. It relates to the hybrid powertrain and may affect performance, emissions, or drivability depending on the exact failure.

Is it safe to drive?

This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.

Most likely causes

• High-voltage component fault

  medium

  Battery modules, inverters, or drive motors can set hybrid-system codes.

• Sensor or coolant issue

  medium

  Temperature and position sensors, or cooling-system faults, are common causes.

• Wiring or connector issue

  medium

  High-voltage and low-voltage harness issues can trigger hybrid codes.

Related help

• Full P0AA8 diagnosis, causes & costs
• How to read check engine light codes
• Is it safe to drive with the light on?