B11DB

Diagnostic Routine Q

Diagnostic Overview

B11DB:83

Refer to Wiring Diagram Set 12 for schematic and connector information Electrical Diagrams.

Normal Operation and Fault Conditions

The BCM (Body Control Module) monitors the battery state of charge using the battery monitoring sensor attached to the negative battery cable. Battery voltage is hardwired to the battery monitoring sensor and data is transferred from the battery monitoring sensor to the BCM (Body Control Module) via a LIN (Local Interconnect Network) circuit.

DTC (Diagnostic Trouble Code) Fault Trigger Conditions






Pinpoint Test

1. RETRIEVE BCM (Body Control Module) DTCs (Diagnostic Trouble Codes) WITH BATTERY MONITORING SENSOR FUSE REMOVED

1. Ignition OFF.

2. Remove BJB (Battery Junction Box) fuse 22 (15A).

3. Ignition ON.

4. Using a scan tool, perform BCM (Body Control Module) self-test.

5. Check the BCM (Body Control Module) DTCs (Diagnostic Trouble Codes) from the self-test.

Did DTC (Diagnostic Trouble Code) B11DB:83 return?






2. CHECK FOR CORRECT BCM (Body Control Module) OPERATION

1. Ignition OFF.

2. Install BJB (Battery Junction Box) fuse 22 (15A).

3. Disconnect and inspect all BCM (Body Control Module) connectors.

4. Repair:

- corrosion (install new connectors or terminals- clean module pins)
- damaged or bent pins- install new terminals/pins
- pushed-out pins- install new pins as necessary

5. Reconnect the BCM (Body Control Module) connectors. Make sure they seat and latch correctly.

6. Operate the system and determine if the concern is still present.

Is the concern still present?