Engine-Codes - Gmc - B1451 GMC

B1451 GMC Code - Accessory Power Circuit

- Code Popularity: 595 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the B1451 GMC Code?

  • Faulty Keyless Entry Control Module
  • Keyless Entry Control Module harness is open or shorted
  • Keyless Entry Control Module circuit poor electrical connection

|How to Fix the B1451 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.

|B1451 GMC code tech notes

B1451 01 Accessory Power Circuit Short to Battery
B1451 02 Accessory Power Circuit Short to Ground
B1451 04 Accessory Power Circuit Open

|What is the cost to diagnose the B1451 GMC code?

Labor: 1.0

The cost to diagnose the B1451 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 B1451 GMC code possible symptoms?

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

|What Does the B1451 GMC Code Mean?

The Keyless Entry Control Module provides backup controls for the ignition power circuit, through the control circuit, by applying voltage to the circuit. The ignition power circuit is energized when the vehicle power mode is in Vehicle ON or Vehicle in Service Mode.

Accessory Power Circuit

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