P1526 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 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.
Code P1526 Description
What are the Possible Causes of the DTC P1526?
- 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?
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 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
- P1526 Audi — Intake Camshaft Control Circuit Bank 1 Short to B+
- P1526 BMW — Camshaft Position Actuator 'A' Control Open Circuit Bank 2
- P1526 Buick — Minimum Throttle Position Not Learned Conditions
- P1526 Cadillac — Minimum Throttle Position Not Learned Conditions
- P1526 Chevrolet — Minimum Throttle Position Not Learned Conditions
- P1526 GMC — Minimum Throttle Position Not Learned Conditions
- P1526 Hyundai — Sensor Supply Voltage1 Malfunction
- P1526 Mazda — Supercharge Air Control Solenoid Short / Open Circuit
- P1526 MINI — Camshaft Position Actuator 'A' Control Open Circuit Bank 2
- P1526 Volkswagen — Intake Camshaft Control Circuit Bank 1 Short to B+
Frequently Asked Questions about P1526 Code
1. What are common symptoms of OBDII code P1526 (Minimum Throttle Position Not Learned Conditions)?
- Common symptoms include poor idle quality, stalling at idle, rough idling, and potential difficulty starting the vehicle.
2. What causes OBDII code P1526 to trigger?
- The code is typically triggered when the Engine Control Module (ECM) detects that the minimum throttle position has not been learned properly.
3. How can I diagnose the cause of OBDII code P1526?
- Diagnosis involves checking the throttle position sensor, throttle body, wiring harness connections, and the ECM for any faults or malfunctions.
4. Can a dirty throttle body cause OBDII code P1526?
- Yes, a dirty or malfunctioning throttle body can prevent the proper learning of the minimum throttle position and trigger the code.
5. What is the recommended repair for OBDII code P1526?
- The recommended repair is to clean the throttle body, reset the ECM, and perform a throttle position sensor relearn procedure.
6. Is it safe to continue driving with OBDII code P1526 present?
- It is not recommended to continue driving with this code present, as it can lead to further engine performance issues and potential safety hazards.
7. Can a faulty throttle position sensor cause OBDII code P1526?
- Yes, a faulty throttle position sensor can prevent the minimum throttle position from being learned correctly and trigger the code.
8. How long does it take to repair OBDII code P1526?
- The repair time can vary depending on the exact cause of the code, but cleaning the throttle body and performing a relearn procedure can typically be done within a few hours.
9. Can OBDII code P1526 be a result of a wiring issue?
- Yes, a wiring issue such as a short circuit or open circuit in the throttle position sensor circuit can also trigger the code.
10. Will resetting the ECM clear OBDII code P1526 permanently?
- Resetting the ECM may clear the code temporarily, but if the underlying issue causing the code is not addressed, it is likely to return.
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