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P1451 GMC Code - Barometric Pressure Sensor Performance

- Code Popularity: 3,542 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P1451 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 Barometric Pressure Sensor
  • Barometric Pressure Sensor harness is open or shorted
  • Barometric Pressure Sensor circuit poor electrical connection
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How to Fix the DTC P1451 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.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1451 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 P1451 GMC Description

With the key on for 2 seconds or engine cranked for 2 seconds, the Powertrain Control Module (PCM) detects that the BARO Pressure sensor input was less than 33 kPa, or was more than 134 kPa, or during the Input Range Check, that the BARO Pressure sensor indicated an input greater than or equal to 135 kPa, condition met for 2 seconds.

OBDII Code P1451 GMC - Barometric Pressure Sensor Performance - AutoCodes.com
P1451 GMC Code - Barometric Pressure Sensor Performance

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Code P1451 GMC comments

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