The transmission range sensor is an electronic component that plays a crucial role in the performance of your vehicle’s automatic transmission. It works by communicating with the engine control module (ECM) and telling it when to shift gears, based on the position of the gear selector. If your vehicle’s onboard diagnostic system (OBD-II) detects a problem with this sensor, it will trigger a trouble code and illuminate the check engine light. One such code is OBD-II code P0708 – Transmission Range Sensor A Circuit High. In this article, we’ll take a closer look at what this code means, what causes it, and how to fix the issue.
What is OBD-II Code P0708 – Transmission Range Sensor A Circuit High?
OBD-II code P0708 is a generic powertrain code that is stored when your vehicle’s ECM detects a high electrical voltage in the transmission range sensor A circuit. This circuit is responsible for providing the ECM with information about the position of the gear selector. It is usually caused by a faulty transmission range sensor or a wiring issue in the circuit that connects the sensor to the ECM. When this code is triggered, your vehicle’s transmission may not shift properly, or the transmission may not engage at all.
What Causes OBD-II Code P0708?
OBD-II code P0708 is usually caused by a problem with the transmission range sensor. This sensor can become worn or damaged over time, or it may be affected by road debris, exposure to moisture, or corrosion. Additionally, problems with the wiring, connectors, or electrical components that make up the transmission range sensor circuit can also cause this code to appear. In some cases, the ECM may also be at fault, although this is less common.
Symptoms of OBD-II Code P0708
If your vehicle’s OBD-II system has detected a problem with the transmission range sensor circuit and stored the P0708 code, you may experience several symptoms. These may include difficulty shifting gears, hesitation or jerking during acceleration or deceleration, or the transmission not engaging at all. Additionally, your vehicle may have reduced fuel efficiency and may produce black smoke from the tailpipe due to an improperly shifting transmission.
How to Fix OBD-II Code P0708?
To fix OBD-II code P0708, you’ll first need to diagnose the issue that’s causing the code to appear. This may involve using a diagnostic scanner to retrieve the code and inspecting the transmission range sensor itself for signs of wear or damage. If the sensor is faulty, you’ll need to replace it with a new one. This may involve removing the transmission range sensor and installing a new one in its place. Additionally, you’ll need to inspect the wiring and electrical connectors that make up the transmission range sensor circuit to ensure that there are no issues there. If you find any wiring issues or damage, you’ll need to repair or replace the affected components before installing a new transmission range sensor.
FAQs:
1. Can driving with OBD-II code P0708 cause further damage to my vehicle?
It is possible that driving with this code can cause further damage to your vehicle, especially if you continue to experience problems with shifting or the transmission not engaging. We recommend that you have the issue diagnosed and fixed as soon as possible to avoid any further damage.
2. Is it safe to continue driving my vehicle if I am experiencing symptoms of OBD-II code P0708?
It is not recommended to drive your vehicle if you are experiencing symptoms of this code. Your transmission may not shift properly or may not engage at all, which can cause a safety risk while driving.
3. Can I fix OBD-II code P0708 myself?
If you have experience working on vehicles and have the necessary tools and equipment, you may be able to fix this code yourself. However, we recommend that you have the issue diagnosed and fixed by a professional mechanic to ensure that the problem is properly diagnosed and repaired.
4. How much does it cost to fix OBD-II code P0708?
The cost of fixing this code will depend on the cause of the problem. If it’s simply a matter of replacing the transmission range sensor, it may cost between $100-$300. If the issue is more complex, the cost may increase.
5. Can I prevent OBD-II code P0708 from occurring?
Ensuring that your vehicle is properly maintained and having regular inspections can help to prevent issues such as this. Additionally, avoiding driving on rough terrain or in adverse weather conditions can help to prevent damage to the transmission range sensor and other components.
20% off Additional Services at Valvoline Instant Oil Change
20% off Cabin Air Filter Replacement at Valvoline Instant Oil Change
