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P1579 GMC Code - P/N to D/R at High Throttle Angle - Power Reduction Mode Active

- Code Popularity: 3,133 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1579 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 Throttle Control Body
  • Throttle Control Body harness is open or shorted
  • Throttle Control Body circuit poor electrical connection
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How to Fix the DTC P1579 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 P1579 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 P1579 GMC Description

The Powertrain Control Module (PCM) determines that it should retard spark timing and disable fuel to individual cylinders to reduce the engine power if the gear selection in Park or Neutral to Drive or Reverse, VSS input less than 6 mph, engine speed more than 2000 rpm and throttle angle at 20 degrees or more.

OBDII Code P1579 GMC - P/N to D/R at High Throttle Angle - Power Reduction Mode Active - AutoCodes.com
P1579 GMC Code - P/N to D/R at High Throttle Angle - Power Reduction Mode Active

Need More Information on the Code?

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Code P1579 GMC comments

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