Engine-Codes - Generic - B0284

B0284 Code - Electric Rear Defrost Circuit Range/Performance

- Code Popularity: 734 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the Code B0284?

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

|How to Fix the B0284 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 B0284?

Labor: 1.0

The cost to diagnose the B0284 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 B0284 Possible Symptoms?

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

|What Does the B0284 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.

Electric Rear Defrost Circuit Range/Performance

|Need more Information on the B0284 Code?

Need more information on how to fix the B0284 code? Get Access to Factory Service Manuals

|Code B0284 Information for Specific Makes

  • B0284 Buick Electric Rear Defrost Circuit Range/Performance
  • B0284 Cadillac Electric Rear Defrost Circuit Range/Performance
  • B0284 Chevrolet Electric Rear Defrost Circuit Range/Performance
  • B0284 GMC Electric Rear Defrost Circuit Range/Performance

|Need Help with the B0284 Code?

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