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.
P1A29Cell Supervisory Circuit A Failure
P1A29-00Cell Supervisory Circuit A Failure
P1A29Cell Supervisory Circuit A Failure
Manufacturer communications
11Original wording in English
RAM
Battery Pack Control Module (BPCM) Software Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) has been set: ● P1A29-00 - Cell Supervisory Circuit A Failure. ● U3017-00 - Control Module Ti…
RAM
Not applicable to vehicles built for US market. Battery Pack Control Module (BPCM) Software Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation SYMPTOM: the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) has been set: ● **P1A29-00 - Cell Su…
RAM
Battery Pack Control Module (BPCM) Software Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTC)s have been set: ? P0AC0 - Hybrid Battery Pack Current Sensor 1 Circuit Performance. ? P1A…
RAM
Battery Pack Control Module (BPCM) Software Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTC)s have been set: ? P0AC0 - Hybrid Battery Pack Current Sensor 1 Circuit Performance. ? P1A…
Check vehicle applicability
11A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Chrysler | PACIFICA ↗ | 2019 |
| Chrysler | PACIFICA ↗ | 2018 |
| Chrysler | PACIFICA ↗ | 2017 |
| Ram | 1500 ↗ | 2026 |
| Ram | 1500 ↗ | 2025 |
| Ram | 1500 ↗ | 2024 |
| Ram | 1500 ↗ | 2023 |
| Ram | 1500 ↗ | 2022 |
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.