Engine-Codes - Mercury - B12E5 Mercury

B12E5 Mercury Code - Off Road Mode Select Switch

- Code Popularity: 448 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B12E5 Mercury?

  • Faulty Off-Road Mode Select Switch
  • Off-Road Mode Select Switch harness is open or shorted
  • Off-Road Mode Select Switch circuit poor electrical connection
  • Faulty Transfer Case Control Module (TCCM)

|How to Fix the B12E5 Mercury Code?

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.

|Code B12E5 Mercury Tech Notes

B12E5:00 Off Road Mode Select Switch No Sub Type Information
B12E5:11 Off Road Mode Select Switch Circuit Short To Ground

|What is the Cost to Diagnose the Code B12E5 Mercury?

Labor: 1.0

The cost to diagnose the B12E5 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.

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|What are Code B12E5 Mercury Possible Symptoms?

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

|What Does the B12E5 Mercury Code Mean?

When the Off-Road Mode Select Switch is depressed, a signal is sent to the Transfer Case Control Module (TCCM) which alerts other modules along the HS-CAN that off-road mode is being requested. Other vehicle functions change to accommodate off-road mode and an indicator illuminates on the off-road mode switch confirming off-road mode.

Off Road Mode Select Switch

|Need more Information on the B12E5 Mercury Code?

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|Need Help with the B12E5 Mercury Code?

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