AutoCodes - Mercury - B1349 MERCURY

B1349 MERCURY Code - Heated Backlite Relay Short to Battery

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|B1349 MERCURY code possible causes

  • Faulty Heated Rear Window Relay
  • Faulty Heated Rear Window Switch
  • Faulty Heated Rear Window Grid
  • Faulty Smart Junction Box (SJB)

|How do I fix the B1349 MERCURY code?

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 B1349 MERCURY code

Labor: 1.0

The cost of diagnosing the B1349 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 B1349 MERCURY code possible symptoms?

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

|B1349 MERCURY code description

When the rear defrosts switch on the climate control assembly is pressed, a ground signal is sent to the Smart Junction Box (SJB) on the circuit. The SJB then grounds circuit. This energizes the heated rear window relay, allowing voltage to be supplied to the heated rear window grid through the circuit. The OBDII code sets when the Heated Backlite Input is not to factory specifications.
OBDII Code B1349 Mercury - Heated Backlite Relay Short to Battery -

|Need more information with the B1349 MERCURY code?

Need more information on how to fix the B1349 MERCURY code? Get Access to Factory Service Manuals

|Need help with a B1349 MERCURY code?

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|B1349 MERCURY code comments

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