Engine-Codes - Generic - P0AA8

P0AA8 Code - Hybrid Battery Voltage Isolation Sensor Circuit Range/Performance

- Code Popularity: 2,343 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code P0AA8?

  • Hybrid battery junction block
  • Faulty Battery Smart Unit
  • Faulty HV Battery
  • Inverter With Converter Assembly

|How to Fix the P0AA8 Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|What is the Cost to Diagnose the Code P0AA8?

Labor: 1.0

The cost to diagnose the P0AA8 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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|What are Code P0AA8 Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the P0AA8 Code Mean?

The power management control ECU monitors the battery smart unit and detects insulation malfunctions in the high-voltage system.

P0AA8 Code - Hybrid Battery Voltage Isolation Sensor Circuit Range/Performance

|Need more Information on the P0AA8 Code?

Need more information on how to fix the P0AA8 code? Get Access to Factory Service Manuals

|Code P0AA8 Information for Specific Makes

  • P0AA8 Buick Hybrid/EV Battery Voltage Isolation Sensing Circuit Performance
  • P0AA8 Cadillac Hybrid/EV Battery Voltage Isolation Sensing Circuit Performance
  • P0AA8 Chevrolet Hybrid/EV Battery Voltage Isolation Sensing Circuit Performance
  • P0AA8 GMC Hybrid/EV Battery Voltage Isolation Sensing Circuit Performance
  • P0AA8 Lexus Hybrid Battery Voltage Isolation Sensor Circuit Range/Performance
  • P0AA8 Nissan Hybrid Battery Voltage Isolation Sensor Circuit Range/Performance
  • P0AA8 Toyota Hybrid Battery Voltage Isolation Sensor Circuit Range/Performance

|Need Help with the P0AA8 Code?

Get the P0AA8 code diagnosed by a professional: Find a repair shop in your area