2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1390
DTC P0B41
- Hybrid Battery 2 Circuit Performance
DTC P0B46
- Hybrid Battery 3 Circuit Performance
DTC P0B4B
- Hybrid Battery 4 Circuit Performance
DTC P0B50
- Hybrid Battery 5 Circuit Performance
DTC P0B55
- Hybrid Battery 6 Circuit Performance
DTC P0B5A
- Hybrid Battery 7 Circuit Performance
DTC P0B5F
- Hybrid Battery 8 Circuit Performance
DTC P0B64
- Hybrid Battery 9 Circuit Performance
DTC P0B69
- Hybrid Battery 10 Circuit Performance
DTC P0B6E
- Hybrid Battery 11 Circuit Performance
DTC P0B73
- Hybrid Battery 12 Circuit Performance
DTC P0B78
- Hybrid Battery 13 Circuit Performance
DTC P0B7D
- Hybrid Battery 14 Circuit Performance
DTC P0B82
- Hybrid Battery 15 Circuit Performance
DTC P0B87
- Hybrid Battery 16 Circuit Performance
DTC P0B8C
- Hybrid Battery 17 Circuit Performance
DTC P0B91
- Hybrid Battery 18 Circuit Performance
DTC P0B96
- Hybrid Battery 19 Circuit Performance
DTC P0B9B
- Hybrid Battery 20 Circuit Performance
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. They hybrid powertrain control module is the host controller for diagnostic trouble code (DTC) information.
