Understanding the 0708 Generic OBD2 Code

The 0708 Generic Obd2 Code indicates a problem with the transmission range sensor (TRS), a critical component in your vehicle’s transmission system. This code can cause various driving issues, and understanding its meaning, causes, and solutions is crucial for maintaining your car’s performance. This article will provide a comprehensive guide to the 0708 generic OBD2 code, equipping you with the knowledge you need to address this common transmission issue.

What is the 0708 Generic OBD2 Code?

The 0708 code specifically signals a malfunction within the transmission range sensor circuit. The TRS, also known as the neutral safety switch or the inhibitor switch, tells the vehicle’s computer what gear the transmission is currently in (Park, Reverse, Neutral, Drive, etc.). This information is essential for proper engine operation, starting, and transmission shifting. A faulty TRS can lead to a range of problems, from difficulty starting the car to erratic shifting and even complete transmission failure.

Causes of the 0708 Generic OBD2 Code

Several factors can trigger the 0708 code. Here are some of the most common causes:

Faulty Transmission Range Sensor: The most common cause is a malfunctioning TRS itself. This could be due to internal damage, wear and tear, or corrosion.
Damaged Wiring or Connectors: Damaged wiring or corroded connectors in the TRS circuit can disrupt the signal and trigger the code.
Misadjusted Transmission Range Sensor: Sometimes, the TRS might simply be misadjusted, causing inaccurate readings.
Low Transmission Fluid: Low transmission fluid can affect the hydraulic pressure within the transmission and indirectly impact the TRS operation.
Transmission Mechanical Problems: While less common, internal mechanical problems within the transmission can sometimes manifest as a 0708 code.

Transmission Range Sensor Location and Wiring

Symptoms of a 0708 Code

Recognizing the symptoms associated with a 0708 code can help you diagnose the issue quickly. Some common symptoms include:

Check Engine Light Illumination: The most obvious sign is the illumination of the check engine light on your dashboard.
Intermittent Starting Problems: The car may have difficulty starting, especially in Park or Neutral.
Erratic Shifting: The transmission may shift erratically, harshly, or refuse to shift at all.
Incorrect Gear Indication: The gear indicator on the dashboard might display the wrong gear.
Limp Mode: In some cases, the vehicle may enter “limp mode,” limiting its speed and functionality to prevent further damage.

Diagnosing and Fixing the 0708 Generic OBD2 Code

Diagnosing the 0708 code requires an OBD2 scanner to retrieve the code and any associated codes. Once the code is confirmed, the following diagnostic steps should be taken:

Visually inspect the TRS wiring and connectors: Look for any signs of damage, corrosion, or loose connections.
Check the transmission fluid level and condition: Ensure the fluid is at the correct level and doesn’t appear burnt or contaminated.
Test the TRS with a multimeter: Check the sensor’s resistance and voltage readings according to the manufacturer’s specifications.
Adjust or replace the TRS: If the TRS is faulty, it needs to be adjusted or replaced.

What Happens if I Ignore the 0708 Code?

Ignoring the 0708 code can lead to significant problems, including transmission damage, drivability issues, and increased repair costs. Addressing the issue promptly is crucial to prevent further complications.

“The transmission range sensor is a small but vital component. Ignoring its malfunction can lead to costly repairs down the line.” – John Smith, ASE Certified Master Technician

Preventing the 0708 Code

Regular maintenance can help prevent the 0708 code. Ensure your transmission fluid is changed at the recommended intervals and have your mechanic inspect the TRS during routine checkups.

Checking and Maintaining Transmission Fluid

Conclusion

The 0708 generic OBD2 code signifies a problem with your vehicle’s transmission range sensor. Understanding its causes, symptoms, and solutions will help you diagnose and fix the issue quickly, preventing further damage and ensuring your vehicle’s smooth operation. Addressing the 0708 code promptly is essential for maintaining your car’s performance and avoiding costly repairs.

FAQ

Can I drive with a 0708 code? It’s not recommended. Driving with a 0708 code can worsen the problem and potentially cause further damage.
How much does it cost to replace a transmission range sensor? The cost varies depending on the vehicle make and model, but it typically ranges from $100 to $300.
Where is the transmission range sensor located? It’s usually located on the outside of the transmission housing.
Can I replace the TRS myself? While possible, it’s generally recommended to have a qualified mechanic perform the replacement.
What other codes are related to the 0708 code? Other related codes might include P0705, P0706, and P0707, all related to the transmission range sensor circuit.
How long does it take to replace a TRS? The replacement usually takes about an hour.
What tools do I need to replace a TRS? You’ll need basic hand tools, a multimeter, and possibly a transmission range sensor alignment tool.

Common Scenarios for 0708 code

Car won’t start in Park or Neutral.
Car stalls when shifting gears.
Inaccurate gear display on the dashboard.

Understanding OBD2 Codes
Transmission Troubleshooting Guide

Need help with the 0708 code? Contact us via WhatsApp: +1(641)206-8880, Email: [email protected] or visit us at 789 Elm Street, San Francisco, CA 94102, USA. Our 24/7 customer support team is ready to assist you.