2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1451
DTC P0B43
- Hybrid Battery 2 Circuit High Voltage
DTC P0B48
- Hybrid Battery 3 Circuit High Voltage
DTC P0B4D
- Hybrid Battery 4 Circuit High Voltage
DTC P0B52
- Hybrid Battery 5 Circuit High Voltage
DTC P0B57
- Hybrid Battery 6 Circuit High Voltage
DTC P0B5C
- Hybrid Battery 7 Circuit High Voltage
DTC P0B61
- Hybrid Battery 8 Circuit High Voltage
DTC P0B66
- Hybrid Battery 9 Circuit High Voltage
DTC P0B6B
- Hybrid Battery 10 Circuit High Voltage
DTC P0B70
- Hybrid Battery 11 Circuit High Voltage
DTC P0B75
- Hybrid Battery 12 Circuit High Voltage
DTC P0B7A
- Hybrid Battery 13 Circuit High Voltage
DTC P0B7F
- Hybrid Battery 14 Circuit High Voltage
DTC P0B84
- Hybrid Battery 15 Circuit High Voltage
DTC P0B89
- Hybrid Battery 16 Circuit High Voltage
DTC P0B8E
- Hybrid Battery 17 Circuit High Voltage
DTC P0B93
- Hybrid Battery 18 Circuit High Voltage
DTC P0B98
- Hybrid Battery 19 Circuit High Voltage
DTC P0B9D
- Hybrid Battery 20 Circuit High Voltage
Circuit/System Description
The system contains twenty battery modules. Each module contains two 7.2 V cells for a total nominal system voltage of 288 V. Each battery
module is rated at 14.4 V direct current (DC) and all the modules are connected together in series. The drive motor generator battery is also referred
to as the hybrid battery. The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The
drive motor generator battery control module monitors the hybrid battery voltage on the twenty battery modules. The drive motor generator battery
control module determines the actual terminal voltage by monitoring the output voltage from the high voltage contactors.
The drive motor generator battery control module will diagnose its own systems and determine when a fault condition is present. Diagnostics and
system status is communicated from the drive motor generator battery control module to the hybrid powertrain control module (HPCM) through
serial data. The hybrid powertrain control module is the host controller for diagnostic trouble code (DTC) information.
