Battery Condition Monitor: Service and Repair

Battery Pack Sensor Module (BPSM)









Removal and Installation

WARNING: To prevent the risk of high-voltage shock, always follow precisely all warnings and service instructions, including instructions to depower the system. The high-voltage hybrid system utilizes approximately 300 volts DC, provided through high-voltage cables to its components and modules. The high-voltage cables and wiring are identified by orange harness tape or orange wire covering. All high-voltage components are marked with high-voltage warning labels with a high-voltage symbol. Failure to follow these instructions may result in serious personal injury or death.

WARNING: Always wear high-voltage insulated safety gloves with leather outer gloves and a face shield when servicing the battery pack sensor module (BPSM) and never remove the high-voltage BPSM connector unless directed by a service procedure. High voltage is present at the BPSM at all times, even with service disconnect plug removal. Depowering the system will not remove voltage from the BPSM connector with the orange harness. Follow all service instructions. Failure to follow these instructions may result in serious personal injury or death.

WARNING: Always inspect gloves before each use to prevent high-voltage shock. High-voltage insulated safety gloves with a leather outer glove are required to service some components of this vehicle where specified in the service procedures. All high-voltage insulated safety gloves must meet or exceed ANSI/ASTM class 00. Refer to Rubber Insulating Gloves Testing Rubber Insulating Gloves Testing. Failure to follow these instructions may result in serious personal injury or death.

WARNING: Never install the service disconnect plug with the high-voltage bussed electrical center (BEC) cover removed. Always install the cover prior to connecting the service disconnect plug. The high-voltage BEC cover prevents inadvertent contact with the high voltage which is present at several points under the cover. Failure to follow these instructions may result in serious personal injury or death.

1. Depower the High Voltage Traction Battery (HVTB). For additional information, refer to High-Voltage Traction Battery Systems Depowering High-Voltage Traction Battery Systems Depowering.

2. Fold the RH backrest down.
- Between the HVTB and the sheet metal, locate the seat backrest latch release lever.

- Push the release lever toward the outboard side of the vehicle and fold the backrest down.





3. Remove the 4 high-voltage Bussed Electrical Center (BEC) cover nuts, the 2 high-voltage BEC cover screws and the high-voltage BEC cover.
- To install, tighten to 9 Nm (80 lb-in).

4. Release the locking levers and disconnect the 2 connectors at the Battery Pack Sensor Module (BPSM).

5. Remove the 4 nuts and the BPSM.
- To install, tighten to 9 Nm (80 lb-in).

6. To install, reverse the removal procedure.