Trim Panel Lock Switch Circuit Failure
Table of contents
B2A25 MERCURY Possible Causes
- Faulty Door Lock Control Switch
- Door Lock Control Switch harness is open or shorted
- Door Lock Control Switch circuit poor electrical connection
- Faulty Smart Junction Box (SJB)
How do I fix code B2A25 MERCURY?
Check 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.
Cost of diagnosing the B2A25 MERCURY code
The cost of diagnosing the B2A25 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B2A25 MERCURY Description
The Smart Junction Box (SJB) sends voltage signals to the door lock control switches through the lock and unlock input circuits. When the lock or unlock switch is pressed, the corresponding voltage signal is routed to ground, signaling the SJB to lock or unlock the doors. The door lock control switches have a dedicated ground circuit. The Diagnostic Trouble Code (DTC) sets when the SJB detects a short to ground from the lock or unlock request input circuits. This DTC may also set if either of the door lock control switches are pressed for longer than 2 minutes.