Left Front Turn Lamp Circuit Open


Table of contents

B2A29 MERCURY Possible Causes

  • Faulty Bulb Holder
  • Bulb Holder harness is open or shorted
  • Bulb Holder circuit poor electrical connection
  • Faulty Smart Junction Box (SJB)

How do I fix code B2A29 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 B2A29 MERCURY code

  The cost of diagnosing the B2A29 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)

B2A29 MERCURY Description

  When the Smart Junction Box (SJB) detects the multifunction switch is in the LH (Left) TURN position, the SJB provides voltage to the LH front turn lamp. When the SJB detects the multifunction switch is in the RH (Right) TURN position, the SJB provides voltage to the RH front turn lamp. The rear turn lamps are controlled utilizing the rear stoplamp circuitry. The Diagnostic Trouble Code (DTC) sets when the SJB detects an open or short to voltage from the LH front turn lamp voltage supply circuit.

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