Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P1C8049Hybrid/EV Battery Voltage System Isolation [Rear Motor Area] Internal Electronic Failure
Manufacturer communications
2Original wording in English
TOYOTA
TSB: Some 2019 ? 2021 model year RAV4 Hybrid vehicles may exhibit a MIL ON condition with one or both of the following Diagnostic Trouble Codes (DTCs) stored: ?P0AA649 (Hybrid/EV Battery Voltage System Isolation Internal Electronic Failure) ?P1C8049 (Hybrid/EV Battery Voltage System Isolation [Rear Motor Area] Internal Electroni…
TOYOTA
TT: Some 2019-2020 model year RAV4 HV vehicles may experience DTC codes P0AA649 / P1C8049. - P0AA649-Hybrid/EV Battery Voltage System Isolation Internal Electronic Failure - P1C8049-Hybrid/EV Battery Voltage System Isolation (Rear Motor Area) Internal Electronic Failure Vehicles exhibiting this condition have been experiencing a…
Check vehicle applicability
5A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Toyota | RAV4 ↗ | 2020 |
| Toyota | RAV4 ↗ | 2019 |
| Toyota | RAV4 HYBRID ↗ | 2021 |
| Toyota | RAV4 HYBRID ↗ | 2020 |
| Toyota | RAV4 HYBRID ↗ | 2019 |
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.