Engine-Codes - Gmc - B1451 GMC

B1451 GMC - Accessory Power Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

B1451 GMC Possible Causes

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

How is the B1451 GMC code repair?

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.

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 labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

B1451 GMC Meaning

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.

More Information

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