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P0708 Audi Code - Transmission Range Switch Circuit High Input

Quick Answer

The P0708 diagnostic trouble code (DTC) in Audi vehicles refers to the Transmission Range Switch Circuit High Input. Common causes include Faulty transmission range switch, Damaged wiring or connectors in the circuit, Malfunctioning ECM or TCM. 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
P0708 Audi indicates Transmission Range Switch Circuit High Input.
Common causes
Common causes include Faulty transmission range switch, Damaged wiring or connectors in the circuit, Malfunctioning ECM or TCM.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0708 Audi Description

The P0708 diagnostic trouble code (DTC) in Audi vehicles refers to the Transmission Range Switch Circuit High Input. This code indicates that the transmission range sensor is sending a high voltage signal to the engine control module (ECM) or transmission control module (TCM). The transmission range switch, also known as the neutral safety switch, is responsible for informing the ECM or TCM about the gear position of the transmission. This information is crucial for the proper operation of the transmission, engine, and other vehicle systems.

OBDII Code P0708 Audi - Transmission Range Switch Circuit High Input
P0708 Audi Code - Transmission Range Switch Circuit High Input

Common Causes of P0708 Audi

  1. Faulty transmission range switch
  2. Damaged wiring or connectors in the circuit
  3. Malfunctioning ECM or TCM
  4. Corrosion or moisture in the electrical connections
  5. Poor quality transmission fluid or low fluid levels

Symptoms of P0708 Audi

  1. Difficulty shifting gears or erratic shifting patterns
  2. Transmission slipping or delayed engagement
  3. Check Engine Light illuminated on the dashboard
  4. Vehicle not starting or stalling
  5. Reduced fuel efficiency or performance

How to Fix P0708 Audi

  1. Perform a comprehensive diagnostic scan to confirm the P0708 code and identify the specific cause of the issue.
  2. Inspect the transmission range switch for any visible damage or signs of wear. Replace the switch if necessary.
  3. Check the wiring and connectors in the circuit for any corrosion, breaks, or loose connections. Repair or replace any damaged components.
  4. Test the ECM or TCM for proper operation and communication with the transmission range switch. Replace the module if deemed faulty.
  5. Clear the DTC codes from the ECM or TCM memory and perform a test drive to verify that the issue has been resolved.

Cost to Fix P0708 Audi

The typical repair costs for addressing the P0708 code in Audi vehicles can range from $200 to $500, including parts and labor. However, the final cost may vary depending on the specific cause of the issue, the location of the repair shop, and the hourly labor rates. It is recommended to consult with a certified mechanic or dealership to obtain a more accurate estimate based on the vehicle's make and model. Keep in mind that additional diagnostic time may be necessary to pinpoint the exact source of the problem before proceeding with the repairs.

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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 P0708 Audi Code

1. What are the common symptoms of OBDII code P0708 in an Audi related to the Transmission Range Switch Circuit High Input?

The common symptoms include difficulty shifting gears, the transmission getting stuck in a particular gear, and the Check Engine Light being illuminated.

2. What are the possible causes of OBDII code P0708 in an Audi?

Possible causes include a faulty transmission range switch, damaged wiring or connectors in the transmission range switch circuit, or a malfunctioning PCM (Powertrain Control Module).

3. How can I diagnose the OBDII code P0708 in my Audi?

Diagnosis typically involves using an OBDII scanner to retrieve the fault code, inspecting the transmission range switch and its circuit for any visible damage, and conducting electrical tests to check for proper voltage and continuity.

4. Can I continue driving my Audi with OBDII code P0708 present?

It is not recommended to continue driving with this code as it can lead to further transmission issues and potentially cause safety hazards. It is best to address the problem promptly.

5. Is it possible to repair OBDII code P0708 in an Audi at home?

While some DIY enthusiasts may attempt to address this issue at home, it is recommended to seek professional help, especially when dealing with transmission-related problems, to ensure proper diagnosis and repair.

6. How much does it typically cost to repair OBDII code P0708 in an Audi?

The cost of repair can vary depending on the underlying cause of the code, the extent of the damage, and labor rates. It is advisable to obtain quotes from reputable mechanics or dealerships.

7. Can resetting the OBDII system clear the P0708 code in an Audi?

Resetting the system may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is crucial to diagnose and fix the root cause of the problem.

8. Is the Transmission Range Switch Circuit High Input a common issue in Audis?

While it may not be as common as some other OBDII codes, issues related to the transmission range switch circuit can occur in Audis, especially in older vehicles or those with high mileage.

9. Can extreme weather conditions affect the occurrence of OBDII code P0708 in an Audi?

Extreme weather conditions, especially temperature fluctuations, can sometimes affect the electrical components of the transmission range switch circuit, potentially leading to the triggering of the P0708 code.

10. How long does it typically take to repair OBDII code P0708 in an Audi?

The repair time can vary based on the specific cause of the code and the complexity of accessing and replacing components. It is best to consult with a professional technician for an accurate estimate of the repair duration.

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