Circuit/System Verification
- Vehicle Power Mode State: Service/Run/On
- Verify no other DTC relating to the Battery Disconnect Module are set.
- If any of the DTCs are set
- Go to next step: If none of the DTCs are set
- Verify DTC P3002, P3003, P3004 is not set.
- If any of the DTCs are set
The A28 Hybrid/Electric Vehicle Battery Disconnect Relay which is an internal component of the A4 Hybrid/Electric Vehicle Battery Pack is causing the fault. Replace the A4 Hybrid/Electric Vehicle Battery Pack.
- Go to next step: If none of the DTCs are set
- If any of the DTCs are set
- All OK.