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P0708 code – Transmission Range Sensor Circuit High – Causes, Symptoms and How To Fix

If you’ve ever seen the P0708 code flash across your dashboard, you know it’s not just a random series of numbers. It’s a warning sign that something is amiss within your vehicle’s transmission system.

Understanding the intricacies of the P0708 code can save you from hefty repair bills and unexpected breakdowns. Let’s dive into what causes this issue, how to recognize its symptoms, and most importantly, how to fix it before it spirals into bigger problems down the road.

Key Takeaway

The P0708 code is a clear indicator that there’s an issue with your vehicle’s transmission range sensor circuit.

This sensor plays a crucial role in determining the position of your gear shifter, relaying vital information to the car’s computer about which gear is currently engaged.

When this circuit reads high, it can lead to performance issues and even prevent your car from shifting properly. Understanding this code helps you take timely action.

Ignoring the P0708 could result in more severe transmission problems down the line, leaving you stranded or facing costly repairs.

Staying informed allows you to address any underlying issues swiftly and effectively.

What does the P0708 – Transmission Range Sensor Circuit High mean?

The P0708 code indicates an issue with the transmission range sensor circuit. This sensor plays a critical role in communicating the position of the gear shifter to your vehicle’s engine control module (ECM).

When this circuit experiences high voltage, it triggers the P0708 code. Essentially, it’s like sending an incorrect signal about which gear is currently engaged.

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This miscommunication can lead to various problems, affecting vehicle performance and shifting behavior. For instance, you might notice erratic shifting or even be unable to shift gears at all.

If this error code appears, it’s vital to pay attention. Ignoring it could result in more severe transmission issues down the line, potentially leading to costly repairs or replacements later on.

What are the common symptoms of a P0708 code?

When your vehicle throws a P0708 code, several symptoms may surface. One common sign is trouble shifting gears. You might experience difficulty moving between drive and reverse or grinding noises during transitions.

Another symptom to watch for is the illumination of the check engine light. This warning can be both frustrating and concerning, signaling that something isn’t right with your transmission system.

In some cases, you may notice erratic behavior in your speedometer readings. Fluctuations can indicate that the transmission range sensor isn’t communicating properly with the car’s computer.

Additionally, unexpected stalling or rough idling could also occur. These performance issues disrupt your driving experience and might leave you feeling uneasy behind the wheel.

Pay close attention to these signs; they often hint at deeper underlying problems needing immediate attention.

What causes a P0708 code?

The P0708 code often stems from issues with the transmission range sensor itself. This component, responsible for detecting the position of the gear shifter, can malfunction due to wear and tear over time.

Electrically related problems are another common culprit. Damaged wiring or corroded connectors may interrupt signals between the sensor and the engine control unit (ECU).

Additionally, low transmission fluid levels can create false readings. Without adequate lubrication, components may not function as intended.

Software glitches within the vehicle’s onboard computer could also lead to a P0708 error. Updates or resets might be necessary in these cases.

A faulty ECU might misinterpret data from various sensors. Such breakdowns can trigger this specific trouble code as well.

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How is a P0708 code diagnosed?

Diagnosing a P0708 code involves a systematic approach. First, a technician will connect an OBD-II scanner to the vehicle’s diagnostic port. This tool retrieves the trouble codes stored in the engine control unit.

Next, they’ll inspect related components. The transmission range sensor and wiring harness are primary targets for visual checks. Any signs of wear or damage can lead to incorrect readings.

The technician may also perform continuity tests on the circuit itself. This helps determine if there’s an interruption affecting communication between parts.

If necessary, they might check voltage levels at various points in the circuit system. Accurate readings can pinpoint where issues lie within the transmission range sensor circuit.

Road testing is often conducted while monitoring data from live sensors. The goal is to replicate conditions that triggered the P0708 code originally.

How important is it to address P0708 – Transmission Range Sensor Circuit High?

Addressing the P0708 code is crucial for maintaining your vehicle’s performance. Ignoring this issue can lead to more significant transmission problems down the line.

When the Transmission Range Sensor malfunctions, it affects gear shifting. This instability can result in unexpected behavior while driving, posing safety risks.

Additionally, a faulty sensor may cause your vehicle to go into limp mode. This limits speed and power, making everyday driving frustrating and inconvenient.

Timely repairs not only enhance your vehicle’s reliability but also prevent costly damage. A neglected issue often snowballs into larger problems that require extensive repairs or part replacements.

Moreover, addressing this error helps maintain optimal fuel efficiency. Proper functioning sensors ensure smooth transitions between gears and minimize strain on the engine.

Investing time in fixing a P0708 code pays off by enhancing both safety and performance on the road.

Is it possible to permanently remove the P0708 code?

When dealing with the P0708 code, it’s important to understand that simply erasing the code from your vehicle’s computer is not a permanent solution. The underlying issue triggering this error will likely resurface if not addressed.

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While it might be tempting to clear the code for a quick fix, doing so can mask serious problems within your transmission system or range sensor circuit. A proper diagnosis and repair are essential for ensuring long-term functionality and safety.

In essence, while you can reset the check engine light temporarily by erasing the code, achieving a lasting resolution requires thorough investigation and appropriate repairs. Ignoring or neglecting these issues could lead to more significant damage down the road.

Making sure that everything is functioning correctly after fixing any faults will help keep that pesky P0708 code from making an appearance again in the future.

How do I fix a P0708 – Transmission Range Sensor Circuit High ?

Fixing a P0708 code requires careful attention to detail. Start by inspecting the transmission range sensor and its wiring. Look for any signs of damage, corrosion, or loose connections.

Next, test the sensor’s resistance using a multimeter. If it falls outside the manufacturer’s specifications, replacement may be necessary.

Check the vehicle’s fuses as well; a blown fuse can cause electrical issues leading to this code.

Calibrating or reprogramming the engine control module (ECM) might also be needed after making repairs or replacements.

Always refer to your vehicle’s service manual for specific instructions tailored to your model. This ensures each step aligns with manufacturer recommendations.

After addressing any identified issues, clear the trouble codes and take your car for a test drive to see if they return.

How much does it cost to fix a P0708 code?

The cost to fix a P0708 code can vary widely based on several factors. Typically, you might expect to pay anywhere from $100 to $500 for the repairs.

Labor costs play a significant role in this range. Mechanics may charge between $75 and $150 per hour depending on their expertise and location.

If the issue lies with the transmission range sensor itself, replacement parts can range from $50 to over $200. However, if there are additional complications within the wiring or other components linked to the sensor, expenses could escalate quickly.

Always remember that getting multiple quotes from different mechanics can help you find a more competitive price for your specific situation. Transparency about potential costs is essential before any work begins on your vehicle’s transmission system.