Pinpoint Test W : B12CB:11, B12CB:23: Notes
WARNING: This page is about a different car, the 2018 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Auto-Start-Stop System for schematic and connector information.
Normal Operation and Fault Conditions
When the ignition is turned on, the auto-start-stop system is automatically enabled and the indicator should be off. If the auto-start-stop system detects a malfunction, it is disabled, and the OFF lamp on the switch illuminates continuously. All other BCM and PCM Diagnostic Trouble Codes (DTCs) should be diagnosed and repaired first. Each time the auto-start-stop disable switch is pressed the indicator should toggle on and off. The auto-start-stop status indicator and auto-start-stop disable switch are part of the active park assist switch assembly.
BCM DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B12CB:11 | Start/Stop "Eco-Start" Enable Button: Circuit Short To Ground | Sets when the BCM detects a short to ground on the auto-start-stop disable switch circuit. |
| B12CB:23 | Start/Stop "Eco-Start" Enable Button: Signal Stuck Low | Sets when the BCM detects a short to ground on the auto-start-stop disable switch circuit. |
Possible Sources
- BCM
- Instrument panel console switch assembly
- Wiring, terminals or connectors