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B12C2 Mercury Code - Puddle Lamp Circuit Short To Ground

- Code Popularity: 594 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B12C2 Mercury?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Blown High Mounted Stop Lamp Fuse
  • Faulty High Mounted Stop Lamp
  • High Mounted Stop Lamp harness is open or shorted
  • High Mounted Stop Lamp circuit poor electrical connection
  • Faulty Body Control Module (BCM)
⚠ Does your Mercury have Safety Recalls? → Check here

How to Fix the DTC B12C2 Mercury?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B12C2 Mercury code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code B12C2 Mercury Description

The cargo lamp illuminates when the courtesy lamps illuminate. The Body Control Module (BCM) uses a separate output circuit that supplies voltage to the cargo lamp. The cargo lamp shares the ground circuit with the High Mounted Stop Lamp. The puddle lamps (if equipped) share the voltage supply with the cargo lamp. This Diagnostic Trouble Code (DTC) sets when the BCM detects a short to ground from the cargo lamp output circuit.

OBDII Code B12C2 Mercury - Puddle Lamp Circuit Short To Ground - AutoCodes.com
B12C2 Mercury Code - Puddle Lamp Circuit Short To Ground

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Code B12C2 Mercury comments

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