AutoCodes – Audi – P1505 Audi

P1505 Audi Code - Closed Throttle Position Does Not Close/Open Circuit

Quick Answer

P1505 Audi indicates Closed Throttle Position Does Not Close/Open Circuit. Common causes include Faulty Closed Throttle Position Switch, Misadjusted throttle plate, Closed Throttle Position Switch harness is open or shorted. 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
P1505 Audi indicates Closed Throttle Position Does Not Close/Open Circuit.
Common causes
Common causes include Faulty Closed Throttle Position Switch, Misadjusted throttle plate, Closed Throttle Position Switch harness is open or shorted.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 8,211
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 25, 2019
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Code P1505 Audi Description

OBDII Code P1505 Audi - Closed Throttle Position Does Not Close/Open Circuit - AutoCodes.com
P1505 Audi Code - Closed Throttle Position Does Not Close/Open Circuit

What are the Possible Causes of the DTC P1505 Audi?

  • Faulty Closed Throttle Position Switch
  • Misadjusted throttle plate
  • Closed Throttle Position Switch harness is open or shorted
  • Closed Throttle Position Switch poor electrical connection

How to Fix the DTC P1505 Audi?

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 P1505 Audi 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 P1505 Audi 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.

Frequently Asked Questions about P1505 Audi Code

1. What does the OBDII code P1505 mean on an Audi?

P1505 indicates a problem with the closed throttle position, specifically that it does not close properly or has an open circuit in the throttle body system.

2. What are common symptoms of the P1505 code on an Audi?

Symptoms may include a rough idle, engine stalling, reduced throttle responsiveness, or the Check Engine Light being illuminated.

3. What causes the P1505 code on an Audi?

Common causes include a malfunctioning throttle position sensor (TPS), wiring or connector issues, carbon buildup in the throttle body, or a faulty throttle body motor.

4. How can I diagnose the P1505 code on my Audi?

Start by inspecting the throttle body for dirt or carbon buildup, checking the wiring and connectors for damage, and testing the throttle position sensor with a multimeter.

5. Can a dirty throttle body trigger the P1505 code?

Yes, carbon buildup or dirt in the throttle body can prevent it from fully closing, potentially triggering the P1505 code.

6. Is it safe to drive with a P1505 code on an Audi?

Driving with a P1505 code can lead to poor engine performance and stalling, which may be unsafe. Address the issue as soon as possible.

7. How do I fix the P1505 code on an Audi?

Repairs may include cleaning the throttle body, repairing damaged wiring, replacing the throttle position sensor, or replacing the throttle body assembly if necessary.

8. Can a faulty throttle position sensor cause the P1505 code?

Yes, a malfunctioning throttle position sensor can prevent accurate readings and lead to the P1505 code.

9. How much does it cost to fix the P1505 code on an Audi?

Repair costs vary depending on the issue; cleaning the throttle body is inexpensive, while replacing the throttle body can cost several hundred dollars, including labor.

10. Will clearing the P1505 code solve the problem?

Clearing the code will temporarily turn off the Check Engine Light, but the underlying issue must be fixed to prevent the code from returning.

Discuss the causes and fixes for P1505 Audi OBDII Code

  • I replaced the throttle position sensor on 1999 Audi a4 quarto it is starting but running rough throwing codes p0300, p0301, p0302

  • The Throttle Position Sensor should have nothing to do with the codes. Ignition coils, spark plugs or fuel injectors are the most common problems for those codes.

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