P1559 Audi Code - Idle Speed Control Throttle Position Adaption Malfunction
Quick Answer
P1559 Audi indicates Idle Speed Control Throttle Position Adaption Malfunction. Common causes include Faulty Throttle Valve Control Module, Throttle Valve Control Module harness is open or shorted, Throttle Valve Control Module 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
- P1559 Audi indicates Idle Speed Control Throttle Position Adaption Malfunction.
- Common causes
- Common causes include Faulty Throttle Valve Control Module, Throttle Valve Control Module harness is open or shorted, Throttle Valve Control Module 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 P1559 Audi Description
What are the Possible Causes of the DTC P1559 Audi?
- Faulty Throttle Valve Control Module
- Throttle Valve Control Module harness is open or shorted
- Throttle Valve Control Module circuit poor electrical connection
How to Fix the DTC P1559 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 P1559 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 P1559 Audi code?
Need more information on how to fix the P1559 Audi code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1559 Audi code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1559 Audi Code
What does the OBDII code P1559 mean on an Audi?
Code P1559 indicates a malfunction in the Idle Speed Control Throttle Position Adaptation system, meaning the throttle body is not properly adapting to maintain the correct idle speed.
What are the common symptoms of code P1559 in an Audi?
Symptoms may include rough idle, engine stalling, poor throttle response, and the Check Engine Light being illuminated.
What causes code P1559 to appear on an Audi?
Common causes include a dirty or faulty throttle body, issues with the throttle position sensor, wiring problems, or a failed electronic control unit (ECU).
How is code P1559 diagnosed?
A mechanic will use a scan tool to confirm the code, inspect the throttle body for dirt or damage, check throttle position sensor readings, and test the wiring and connectors for faults.
Can I drive my Audi with code P1559 present?
It’s not recommended to drive for long with this code present, as improper idle speed control can lead to stalling and unsafe driving conditions.
How can I fix code P1559 on an Audi?
Cleaning the throttle body often resolves the issue. If cleaning doesn’t help, you may need to replace the throttle position sensor, repair wiring, or, in rare cases, replace the throttle body or ECU.
How much does it cost to fix code P1559 on an Audi?
Repair costs can vary widely, ranging from $100 for a throttle body cleaning to $500 or more for replacing parts like the throttle position sensor or throttle body.
Does the throttle body need to be replaced to fix code P1559?
Not always. In many cases, cleaning the throttle body and resetting the adaptation values using a scan tool can resolve the issue without replacement.
How do you reset throttle adaptations on an Audi?
Throttle adaptations can be reset using a diagnostic scan tool capable of performing adaptation procedures. This process allows the throttle body to recalibrate for proper idle speed control.
Can code P1559 be caused by a weak battery?
Yes, a weak or failing battery can sometimes lead to adaptation issues in the throttle body, which may trigger code P1559. Ensure the battery is in good condition before diagnosing further.
Discuss the causes and fixes for P1559 Audi OBDII Code
Code P1559 Audi comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
