Engine-Codes - Mercury - B1277 MERCURY

B1277 MERCURY - Reverse Lamp Circuit Short

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

B1277 MERCURY Possible Causes

  • Faulty Reverse Lamp
  • Reverse Lamp harness is open or shorted
  • Reverse Lamp circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How is the B1277 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.

Tech Notes

B1277:11 Reverse Lamp Circuit Short To Ground
B1277:15 Reverse Lamp Circuit Short To Battery or Open

What is the cost to diagnose the B1277 MERCURY code

Labor: 1.0

The cost to diagnose the B1277 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

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

B1277 MERCURY Meaning

The Body Control Module (BCM) monitors the Reverse Lamp. The OBDII sets when the BCM detects an excessive current draw or open from the reverse lamp output circuit.

More Information

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