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B1451 GMC Code - Accessory Power Circuit

- Code Popularity: 1,406 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B1451 GMC?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Keyless Entry Control Module
  • Keyless Entry Control Module harness is open or shorted
  • Keyless Entry Control Module circuit poor electrical connection
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How to Fix the DTC B1451 GMC?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1451 GMC code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code B1451 GMC Description

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.

OBDII Code B1451 GMC - Accessory Power Circuit - AutoCodes.com
B1451 GMC Code - Accessory Power Circuit

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Code B1451 GMC comments

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