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.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P29BB-00Hybrid-EV Battery Pack Coolant Heater A Control PerformanceManufacturer communications
11Original wording in English
CHRYSLER
Reported code forms P29BB-00
Flash: Auxiliary Hybrid Control Processor (AHCP) / Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble…
CHRYSLER
Reported code forms P29BB-00
Flash: Auxiliary Hybrid Control Processor (AHCP) / Customers **must** experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle **must** SYMPTOM: exhibit/set one or more of the following Diagnostic…
CHRYSLER
Reported code forms P29BB-00
Flash: Auxiliary Hybrid Control Processor (AHCP) / Customers **must** experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle **must** SYMPTOM: exhibit/set one or more of the following Diagnostic…
CHRYSLER
Reported code forms P29BB-00
Flash: Auxiliary Hybrid Control Processor (AHCP) / Customers **must** experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle **must** SYMPTOM: exhibit/set one or more of the following Diagnostic…
CHRYSLER
Reported code forms P29BB-00
Flash: Auxiliary Hybrid Control Processor (AHCP) / Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble…
CHRYSLER
Reported code forms P29BB-00
Flash: Auxiliary Hybrid Control Processor (AHCP) / Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble…
Check vehicle applicability
10A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Chrysler | PACIFICA PLUG-IN HYBRID | 2026 |
| Chrysler | PACIFICA PLUG-IN HYBRID | 2025 |
| Chrysler | PACIFICA PLUG-IN HYBRID | 2024 |
| Chrysler | PACIFICA PLUG-IN HYBRID | 2023 |
| Chrysler | PACIFICA PLUG-IN HYBRID | 2022 |
| Chrysler | PACIFICA PLUG-IN HYBRID | 2021 |
| Chrysler | PACIFICA PLUG-IN HYBRID | 2020 |
| Chrysler | PACIFICA PLUG-IN HYBRID | 2019 |
| Chrysler | PACIFICA PLUG-IN HYBRID | 2018 |
| Chrysler | PACIFICA PLUG-IN HYBRID | 2017 |
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.
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.