P/N to D/R at High Throttle Angle – Power Reduction Mode Active
Table of contents
P1579 BUICK Possible Causes
- Faulty Throttle Control Body
- Throttle Control Body harness is open or shorted
- Throttle Control Body circuit poor electrical connection
How do I fix code P1579 BUICK?
Check 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.
Cost of diagnosing the P1579 BUICK code
The cost of diagnosing the P1579 BUICK code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1579 BUICK Description
The Powertrain Control Module (PCM) determines that it should retard spark timing and disable fuel to inpidual 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.