Engine-Codes - GMC - B0285 GMC

B0285 GMC Code - Electric Rear Defrost Circuit Low

- Code Popularity: 509 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 2/3
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|What are the Possible Causes of the Code B0285 GMC?

  • Faulty Liftgate Module (LGM)
  • Liftgate Module (LGM) harness is open or shorted
  • Liftgate Module (LGM) circuit poor electrical connection

|How to Fix the B0285 GMC 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.

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|What is the Cost to Diagnose the Code B0285 GMC?

Labor: 1.0

The cost to diagnose the B0285 GMC 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 B0285 GMC Possible Symptoms?

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

|What Does the B0285 GMC Code Mean?

The Liftgate Module (LGM) monitors the voltage level on the supply voltage circuit of the rear window defogger. The LGM test the supply voltage circuit of the rear window defogger every 160 milliseconds. With the rear window defogger inactive, the supply voltage circuit of the rear window defogger will have no voltage present. With the rear window defogger active, the supply voltage circuit of the rear window defogger will be near system voltage.

B0285 GMC Code - Electric Rear Defrost Circuit Low

|Need more Information on the B0285 GMC Code?

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|Need Help with the B0285 GMC Code?

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