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.
P1AEF-00MCPB High Voltage Battery System Voltage High
Manufacturer communications
6Original wording in English
BUICK, CHEVROLET
This Preliminary Information communication provides information to the technician about vehicles that have a Shift to Park message on the Driver Information Center. Technician will find Diagnostic Trouble Codes P1AEE, P1AEF, P1AF0, P1AF2, and P1E22. Technician will need to replace the transmission. Technician will need to review…
BUICK, CHEVROLET
This Preliminary Information communication provides information to the technician about vehicles that have a Shift to Park message on the Driver Information Center. Technician will find Diagnostic Trouble Codes P1AEE, P1AEF, P1AF0, P1AF2, and P1E22. Technician will need to replace the transmission. Technician will need to review…
BUICK, CHEVROLET
This Preliminary Information communication provides information to the technician about vehicles that have a Shift to Park message on the Driver Information Center. Technician will find Diagnostic Trouble Codes P1AEE, P1AEF, P1AF0, P1AF2, and P1E22. Technician will need to replace the transmission. Technician will need to review…
CHRYSLER
Loose High Voltage Cable at the Power Inverter Module (PIM) Terminal This bulletin involves inspecting the High Voltage Interlock Loop (HVIL) connector and potentially installing a Power Inverter Module (PIM) kit. The customer may describe a loss of vehicle propulsion or a Malfunction Indicator Light (MIL) illuminated with the f…
Check vehicle applicability
14A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Buick | LACROSSE ↗ | 2019 |
| Buick | LACROSSE ↗ | 2018 |
| Buick | LACROSSE ↗ | 2017 |
| Buick | LACROSSE ↗ | 2016 |
| Chevrolet | MALIBU ↗ | 2019 |
| Chevrolet | MALIBU ↗ | 2018 |
| Chevrolet | MALIBU ↗ | 2017 |
| Chevrolet | MALIBU ↗ | 2016 |
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.