Normal Operation

WARNING: This page is about a different car, the 2014 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

The Restraints Control Module (RCM) monitors the passenger safety belt buckle switch 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 Instrument Panel Cluster (IPC) to illuminate the air bag warning indicator.

DTC DESCRIPTION

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.
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.
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.
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.

This pinpoint test is intended to diagnose the following:

Wiring, terminals or connectors
Passenger safety belt buckle and pretensioner
RCM