Engine-Codes.com
Engine-Codes – Chevrolet – P0708 Chevrolet

P0708 Chevrolet Code - Transmission Range Switch Circuit High Voltage

Quick Answer

The P0708 code for Chevrolet vehicles indicates a Transmission Range Switch Circuit High Voltage. Common causes include Faulty transmission range switch, Damaged wiring or connectors, Corrosion in the circuit. 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 Chevrolet indicates Transmission Range Switch Circuit High Voltage.
Common causes
Common causes include Faulty transmission range switch, Damaged wiring or connectors, Corrosion in the circuit.
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
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0708 Chevrolet Description

The P0708 code for Chevrolet vehicles indicates a Transmission Range Switch Circuit High Voltage. This means that there is a problem with the transmission range switch, also known as the manual lever position sensor or the neutral safety switch. This switch is responsible for sending signals to the vehicle's computer to indicate which gear the transmission is in, allowing the engine to start and the vehicle to move. When the voltage in the circuit is too high, it can cause issues with the transmission's operation, potentially leading to drivability problems.

OBDII Code P0708 Chevrolet - Transmission Range Switch Circuit High Voltage
P0708 Chevrolet Code - Transmission Range Switch Circuit High Voltage

Common Causes of P0708 Chevrolet

  1. Faulty transmission range switch
  2. Damaged wiring or connectors
  3. Corrosion in the circuit
  4. Poor electrical connection
  5. Issues with the vehicle's computer

Symptoms of P0708 Chevrolet

  1. Check engine light illuminated
  2. Difficulty starting the vehicle
  3. Inability to shift gears smoothly
  4. Transmission slipping or jerking
  5. Vehicle stalling unexpectedly

How to Fix P0708 Chevrolet

  1. Begin by using a diagnostic scanner to retrieve the trouble codes and confirm that P0708 is the issue.
  2. Inspect the transmission range switch, wiring, and connectors for any visible damage or corrosion.
  3. Test the voltage in the circuit to determine if it is indeed high, indicating a problem with the switch or connections.
  4. If the switch is faulty, replace it with a new one and ensure proper installation and connection.
  5. Clear the trouble codes and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P0708 Chevrolet

The cost of repairing a P0708 code on a Chevrolet vehicle can vary depending on the extent of the issue and the specific parts needed for repair. On average, the parts for this repair can range from $50 to $200, while the labor costs may be between $100 and $300. Overall, the total repair cost for this issue can be between $150 and $500, with additional costs for diagnostic testing and any other necessary repairs. It is advisable to consult with a trusted mechanic or dealership to get an accurate estimate based on your vehicle's make and model. Keep in mind that labor rates can vary based on location and the repair facility.

What does this mean?

Tech Notes for P0708 Chevrolet

The Internal Mode Switch (IMS) is mounted to the manual shift shaft detent lever as an assembly. The components of the detent lever/IMS assembly cannot be individually serviced. When the IMS needs replacing, the entire assembly must be replaced.











User Submitted Video

Need more information about the P0708 Chevrolet code?

Need more information on how to fix the P0708 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0708 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

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 Chevrolet Code

1. What does the OBDII code P0708 mean on a Chevrolet?

P0708 indicates a high voltage issue in the transmission range switch circuit, which monitors the position of the gear selector.

2. What are the common symptoms of code P0708 in a Chevrolet?

Symptoms include the transmission being stuck in a single gear, hard shifting, the check engine light turning on, and poor fuel efficiency.

3. What causes the P0708 code to appear on a Chevrolet?

Common causes include a faulty transmission range sensor, damaged wiring or connectors in the circuit, or a malfunctioning powertrain control module (PCM).

4. Can I drive my Chevrolet with a P0708 code?

Driving with this code is not recommended as it can lead to erratic shifting, potential transmission damage, and unsafe driving conditions.

5. How do I fix the P0708 code on my Chevrolet?

Repairs may include replacing the transmission range sensor, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.

6. How much does it cost to repair code P0708 on a Chevrolet?

Repair costs can range from $150 to $400, depending on whether the issue is a sensor replacement or wiring repair. PCM replacement or reprogramming may cost more.

7. Can a bad battery cause a P0708 code in a Chevrolet?

While uncommon, a weak or failing battery can contribute to electrical issues that may trigger this code, so it’s worth checking.

8. How is the P0708 code diagnosed on a Chevrolet?

A technician will use a scan tool to confirm the code, inspect the transmission range sensor, test wiring and connectors for continuity, and check the PCM for faults.

9. Can a dirty or corroded connector cause the P0708 code?

Yes, dirty or corroded connectors can disrupt the transmission range switch circuit and cause the code to appear.

10. What happens if I ignore the P0708 code on my Chevrolet?

Ignoring this code can result in further damage to the transmission, reduced performance, and potential safety hazards while driving.

Discuss the causes and fixes for P0708 Chevrolet OBDII Code

Submit a New Comment

Code P0708 Chevrolet comments

No comments found for this page.