Engine-Codes - Mercury - B129C MERCURY

B129C MERCURY Code - Left Front Side Sensor Circuit Short To Ground Or Open

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

|B129C MERCURY code possible causes

  • Faulty Left Front Side Sensor
  • Left Front Side Sensor harness is open or shorted
  • Left Front Side Sensor circuit poor electrical connection
  • Faulty Parking Aid Module (PAM)

|How is the B129C MERCURY code repair?

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.

|What is the cost to diagnose the B129C MERCURY code

Labor: 1.0

The cost to diagnose the B129C 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.

|What are B129C MERCURY code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What is B129C MERCURY code meaning?

The Parking Aid Module (PAM) monitors the Left Front Side Sensor. A continuous and on-demand Diagnostic Trouble Code (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.

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