Pinpoint Test E : B11DB:02, B11DB:08, B11DB:11, B11DB:9A, B1489:11: Notes
WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Charging System for schematic and connector information.
Normal Operation and Fault Conditions
The BCM 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 via a LIN circuit.
Diagnostic Trouble Code (DTC) Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B11DB:02 | Battery Monitoring Module "A": General Signal Failure | This DTC sets if the BCM receives corrupted data from the battery monitoring sensor over the LIN. |
| B11DB:08 | Battery Monitoring Module "A": Bus Signal / Message Failure | This DTC sets if the BCM receives corrupted data from the battery monitoring sensor over the LIN. |
| B11DB:11 | Battery Monitoring Module "A": Circuit Short To Ground | This DTC sets if the BCM detects low voltage on the battery monitoring sensor LIN. |
| B11DB:9A | Battery Monitoring Module "A": Component or System Operating Conditions | This DTC sets if the BCM receives corrupted data from the battery monitoring sensor over the LIN. |
| B1489:11 | Battery Monitoring System (BMS) Sensor Power Circuit Short To Ground | This DTC sets if the BCM receives no data from the battery monitoring sensor over the LIN. |
Possible Sources
- Battery monitoring sensor
- Wiring, terminals or connectors
Visual Inspection and Diagnostic Pre-checks
- Inspect the battery monitoring sensor.
- Inspect the battery monitoring sensor connector.