# Service bulletin 0814622

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10229535
- Published by NHTSA: 2023\-01\-09
- Manufacturer's number: 0814622
- Manufacturer's date: 2022\-08\-03
- NHTSA component: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE \(BMS/BECM\); ELECTRICAL SYSTEM

## NHTSA's summary

Flash: Battery Pack Control Module \(BPCM\) Diagnostic and System Updates This bulletin involves updating the BPCM with the latest available software. Customers may experience a false Malfunction Indicator Lamp \(MIL\) illumination related to PHEV battery: P1A21\-00 \- HV Battery Contactor Control Sequence Incorrect. P0B3E\-00 \- Hybrid/EV Battery Voltage Sense 1 Circuit High. P0607\-00 \- ECU Internal Performance. P1E1B\-00 \- Hybrid/EV Battery Side Voltage System Isolation. P0AA4\-00 \- Hybrid Battery Negative Contactor Circuit Stuck Closed.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10229535-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10229535-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Hybrid and electric drive, High\-voltage battery

## Trouble codes named

P0607, P0AA4, P0B3E, P1A21, P1E1B

## Vehicles listed

- 2022 JEEP WRANGLER

## Recalls for the same vehicles and component

- [25V741000](/recalls/nhtsa/25V741000.md), 2025-10-30: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [24V720000](/recalls/nhtsa/24V720000.md), 2024-09-27: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [23V787000](/recalls/nhtsa/23V787000.md), 2023-11-22: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [23V303000](/recalls/nhtsa/23V303000.md), 2023-04-27: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [22V768000](/recalls/nhtsa/22V768000.md), 2022-10-13: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

## Other bulletins for the same vehicles and component

- [S2207000001](/bulletins/10228011.md), 2022-12-19, Service bulletin: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:FLUID/COOLANT; UNKNOWN OR OTHER. Coolant Color Looks Lighter Than Service Procedure Coolant

JSON: [/v1/bulletins/10229535](/v1/bulletins/10229535)

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