AutoCodesBuick – P1526 Buick

P1526 Buick Code - Minimum Throttle Position Not Learned Conditions

Quick Answer

With the engine speed under 250 rpm, system volts over 10v, Engine Coolant Temperature (ECT) sensor input 41°F-212°F, Intake Air Temperature (IAT) sensor input over 41°F, VSS at 0 mph, Accelerator Pedal Position (APP) sensor input less than 15%, Minimum Closed Throttle position not learned, the Powertrain Control Module (PCM) detects the Throttle Position (TP) sensor 1 input was not between 0.24v-0.82v, and that the TP sensor 2 input was not between 4.2v-4.8v with the throttle valves commanded closed. Common causes include Faulty Throttle Position (TP) Sensor, Throttle Position (TP) Sensor harness is open or shorted, Throttle Position (TP) Sensor 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
P1526 Buick indicates Minimum Throttle Position Not Learned Conditions.
Common causes
Common causes include Faulty Throttle Position (TP) Sensor, Throttle Position (TP) Sensor harness is open or shorted, Throttle Position (TP) Sensor 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.
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Code Popularity 2,826
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 28, 2019
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Code P1526 Buick Description

With the engine speed under 250 rpm, system volts over 10v, Engine Coolant Temperature (ECT) sensor input 41°F-212°F, Intake Air Temperature (IAT) sensor input over 41°F, VSS at 0 mph, Accelerator Pedal Position (APP) sensor input less than 15%, Minimum Closed Throttle position not learned, the Powertrain Control Module (PCM) detects the Throttle Position (TP) sensor 1 input was not between 0.24v-0.82v, and that the TP sensor 2 input was not between 4.2v-4.8v with the throttle valves commanded closed.
OBDII Code P1526 Buick - Minimum Throttle Position Not Learned Conditions - AutoCodes.com
P1526 Buick Code - Minimum Throttle Position Not Learned Conditions

What are the Possible Causes of the DTC P1526 Buick?

  • Faulty Throttle Position (TP) Sensor
  • Throttle Position (TP) Sensor harness is open or shorted
  • Throttle Position (TP) Sensor circuit poor electrical connection

How to Fix the DTC P1526 Buick?

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 P1526 Buick 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.

Need more information about the P1526 Buick code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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