Pinpoint Test B : B129C:14, B129D:14: 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 Audio System/Navigation - With THX for schematic and connector information.
Normal Operation and Fault Conditions
The PAM continuously monitors the active park assist sensor signals any time the ignition is on. When no signal is detected from an active park assist sensor, these Diagnostic Trouble Codes (DTCs) are set.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B129C:14 | Left Front Side Sensor: Circuit Short To Ground Or Open | A continuous and on-demand DTC that sets when any of the left front active park assist sensor circuits are open or the sensor signal line is shorted to ground. |
| B129D:14 | Right Front Side Sensor: Circuit Short To Ground Or Open | A continuous and on-demand DTC that sets when any of the right front active park assist sensor circuits are open or the sensor signal line is shorted to ground. |
Possible Sources
- Wiring, terminals or connectors
- Active park assist sensor
- PAM (integral to the BCM)
NOTE:
Before disconnecting any of the active park assist sensors, verify the connectors are properly seated and latched.