PINPOINT TEST F : DTCs B0052:11, B0052:12, B0052:13 AND B0052:1D: Notes
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostic Overview
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information for information about these practices.
Refer to Supplemental Restraint System , for schematic and connector information.
Normal Operation and Fault Conditions
The RCM continuously monitors the passenger safety belt buckle switch and circuits for the following faults:
- Open circuit
- Short to voltage
- Short to ground
- Current out of range
- Faulted passenger safety belt buckle switch
If a fault is detected, the RCM stores DTC B0052:11, B0052:12, B0052:13 or B0052:1D in memory and sends a message to the IPC to illuminate the airbag warning indicator.
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| B0052:11 | Passenger Seatbelt Sensor: Circuit Short to Ground | A fault is indicated when the RCM senses a short to ground on the passenger safety belt buckle switch circuit for more than 6 seconds. |
| B0052:12 | Passenger Seatbelt Sensor: Circuit Short to Battery | A fault is indicated when the RCM senses a short to voltage on the passenger safety belt buckle switch circuit for more than 6 seconds. |
| B0052:13 | Passenger Seatbelt Sensor: Circuit Open | A fault is indicated when the RCM senses an open on either passenger safety belt buckle switch circuit for more than 6 seconds. |
| B0052:1D | Passenger Seatbelt Sensor: Circuit Current Out of Range | A fault is indicated when the RCM senses current out of an acceptable range between the passenger safety belt buckle switch circuits for more than 6 seconds. |
Possible Sources
- Wiring, terminals or connectors
- Passenger safety belt buckle switch
- RCM
Visual Inspection and Diagnostic Pre-checks
- Inspect for a damaged passenger safety belt buckle.
- Inspect for damaged wiring harness(es).
- Inspect for loose or damaged connectors.