Pinpoint Test AN: DTC P0B36:00

High-Voltage Traction Battery

Pinpoint Test AN: DTC P0B36:00

Refer to Wiring Diagram Set 12, Charging System for schematic and connector information. [1][2]Diagrams By Number

Normal Operation

The service disconnect plug completes the high-voltage circuit. It has a non-serviceable fuse to protect the high-voltage components in the event current raises above the normal operating range. The service disconnect plug also shuts off the high-voltage to the system so service to the system can be completed safely. If the service disconnect voltage becomes too high, the powertrain malfunction (wrench) warning indicator illuminates and the DTC is set.

- P0B36:00 (High Voltage Service Disconnect Circuit High: No Sub Type Information)- This fault is set when the service disconnect voltage is high for 1 second or more.

This pinpoint test is intended to diagnose the following:

- Service disconnect plug

- Battery Pack Sensor Module (BPSM)

- High Voltage Traction Battery (HVTB)

PINPOINT TEST AN : DTC P0B36:00

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 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 . Failure to follow these instructions may result in serious personal injury or death.

AN1 RETRIEVE BECM (Battery Energy Control Module) DTCs

- Connect the scan tool.

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: Clear DTCs- BECM (Battery Energy Control Module).

- Enter the following diagnostic mode on the scan tool: Self Test- BECM (Battery Energy Control Module).

Are any DTCs other than P0B36:00 retrieved?

Yes
REFER to the Battery Energy Control Module (BECM) DTC Chart and diagnose all other DTCs first. Battery Energy Control Module (BECM) DTC Chart

No
GO to AN2.

AN2 CHECK SERVICE DISCONNECT PLUG

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.

- Ignition OFF.

- Depower the HVTB (High Voltage Traction Battery) system. Refer to High-Voltage Traction Battery Systems Depowering .

- Install a new BPSM (Battery Pack Sensor Module). Refer to Battery Pack Sensor Module (BPSM) .

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: Clear DTCs- BECM (Battery Energy Control Module).

- Enter the following diagnostic mode on the scan tool: Self Test- BECM (Battery Energy Control Module).

Is DTC P0B36:00 retrieved?

Yes
INSTALL a new HVTB (High Voltage Traction Battery) (includes HVTB (High Voltage Traction Battery) system wire harness). REFER to High-Voltage Traction Battery . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

No
Repair is complete. TEST the system for normal operation.