Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
B141C:11 Second Row Passenger Inflatable Seatbelt Deployment Control Circuit Short to Ground
B141C:12 Second Row Passenger Inflatable Seatbelt Deployment Control Circuit Short to Battery
B141C:13 Second Row Passenger Inflatable Seatbelt Deployment Control Circuit Open
B141C:1A Second Row Passenger Inflatable Seatbelt Deployment Control Circuit Resistance Below Threshold
The cost to diagnose the B141C MERCURY code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
The Restraint Control Module (RCM) continuously monitors the second row right safety belt inflator and circuits for the following faults: Resistance out of range, Unexpected voltage, Short to ground, Faulted second row right safety belt inflator. If a fault is detected, the RCM stores DTC B141C in memory and sends a message to the Instrument Panel Cluster (IPC) to illuminate the airbag warning indicator.
The RCM analyzes the deployment loop resistance to determine if a fault exists. The value displayed in the PID is the deployment loop resistance measured by the RCM. If the value displayed is lower or higher than the desired range, the RCM can set a DTC. As the deployment loop resistance drifts farther outside the desired range, the chance for a DTC increases. Small variations in resistance can occur due to the effect of road vibrations on terminal fit. Crimps and terminals can be affected by stress and harness movement and can cause an increase in resistance due to wire strain. These variables can result in an intermittent fault. For this reason, the test requires the PID value to be within the desired range before the fault is considered repaired, regardless if the module is reporting an on-demand DTC at the time of diagnosis. Following this direction helps make sure that minor changes in resistance do not create a repeat concern.
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