P1579 Code - P/N to D/R at High Throttle Angle - Power Reduction Mode Active
Quick Answer
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. Common causes include Faulty Throttle Control Body, Throttle Control Body harness is open or shorted, Throttle Control Body circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1579 indicates P/N to D/R at High Throttle Angle - Power Reduction Mode Active.
- Common causes
- Common causes include Faulty Throttle Control Body, Throttle Control Body harness is open or shorted, Throttle Control Body circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1579 Description
What are the Possible Causes of the DTC P1579?
- Faulty Throttle Control Body
- Throttle Control Body harness is open or shorted
- Throttle Control Body circuit poor electrical connection
How to Fix the DTC P1579?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1579 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P1579 Audi — Throttle Control Unit Basic Setting
- P1579 Buick — P/N to D/R at High Throttle Angle - Power Reduction Mode Active
- P1579 Cadillac — P/N to D/R at High Throttle Angle - Power Reduction Mode Active
- P1579 Chevrolet — P/N to D/R at High Throttle Angle - Power Reduction Mode Active
- P1579 Ford — Electronic Throttle Control In Power Limiting Mode
- P1579 GMC — P/N to D/R at High Throttle Angle - Power Reduction Mode Active
- P1579 Volkswagen — Throttle Control Unit Basic Setting
Frequently Asked Questions about P1579 Code
1. What are the common symptoms of OBDII code P1579?
The common symptoms of OBDII code P1579 include reduced power during acceleration, difficulty shifting gears, and the transmission staying in a single gear.
2. What does the OBDII code P1579 indicate?
OBDII code P1579, also known as "P/N to D/R at High Throttle Angle - Power Reduction Mode Active," indicates that the vehicle's powertrain control module (PCM) has detected an issue with shifting from park (P) to drive (D) or reverse (R) while the throttle angle is high.
3. What are the potential causes of OBDII code P1579?
Potential causes of OBDII code P1579 include a faulty throttle position sensor, issues with the transmission range sensor, a malfunctioning powertrain control module (PCM), wiring or connector problems, or a fault in the transmission itself.
4. How can I diagnose the OBDII code P1579?
Diagnosing OBDII code P1579 typically involves using a scan tool to retrieve the code, checking for any other related trouble codes, inspecting the throttle position sensor and transmission range sensor, and testing the wiring and connectors for faults.
5. How can I repair OBDII code P1579?
To repair OBDII code P1579, you may need to replace a faulty throttle position sensor, repair or replace a malfunctioning transmission range sensor, address any wiring or connector issues, or reprogram the powertrain control module (PCM) if necessary.
6. Can driving with OBDII code P1579 cause further damage to the vehicle?
Continuing to drive with OBDII code P1579 may lead to further damage to the transmission or other related components, as the power reduction mode is activated to prevent potential harm to the drivetrain.
7. Is it safe to continue driving my vehicle with OBDII code P1579?
It is not recommended to continue driving your vehicle with OBDII code P1579, as the reduced power and potential transmission issues can affect the safety and performance of the vehicle.
8. How much does it typically cost to repair OBDII code P1579?
The cost to repair OBDII code P1579 can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.
9. Can I reset the OBDII code P1579 by disconnecting the battery?
While disconnecting the battery may temporarily clear the code, it is not a recommended method for addressing the underlying issue causing OBDII code P1579. It's best to diagnose and repair the root cause to prevent the code from reoccurring.
10. Will OBDII code P1579 cause my vehicle to fail an emissions test?
Yes, OBDII code P1579 may cause your vehicle to fail an emissions test, as it indicates a malfunction related to the transmission system, which can impact the vehicle's emissions performance.
Discuss the causes and fixes for P1579 OBDII Code
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falla se enciende luz chek y se pone en emergencia no acelera a mas de 1500 rpm
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Que marca, modelo y año es su auto? Por lo regular el problema es the "Throttle Body"
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