Engine-Codes - Generic - B12C2

B12C2 Code - Puddle Lamp Circuit Short To Ground

- Code Popularity: 5,201 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B12C2?

  • 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)

|How to Fix the B12C2 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.

|What is the Cost to Diagnose the Code B12C2?

Labor: 1.0

The cost to diagnose the B12C2 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 B12C2 Possible Symptoms?

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

|What Does the B12C2 Code Mean?

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.

Puddle Lamp Circuit Short To Ground

|Need more Information on the B12C2 Code?

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|Code B12C2 Information for Specific Makes

|Need Help with the B12C2 Code?

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