Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is getting a signal from the transmission that is too high. It's like when a light switch is stuck in the 'on' position, even when you try to turn it off.
The Transmission Range Sensor (TRS) tells the car's computer which gear the transmission is in. A 'high' circuit signal means the sensor is sending a voltage higher than expected.
The Transmission Range Sensor A is responsible for informing the Powertrain Control Module (PCM) about the current gear selection. A 'high' circuit condition indicates that the PCM is receiving a voltage signal from the sensor that exceeds the normal operating range, suggesting a potential short circuit or a faulty sensor.
• Check Engine Light is on
• Transmission may not shift properly
• Vehicle may not start
• Faulty Transmission Range Sensor
• Short circuit in the sensor wiring
• Faulty PCM
PCM: Powertrain Control Module, the computer that controls the engine and transmission.
TRS: Transmission Range Sensor, a sensor that tells the PCM the current gear position.
• Use an OBD-II scanner to confirm the code
• Inspect the wiring and connectors to the Transmission Range Sensor
• Test the sensor voltage and resistance
• Replace the Transmission Range Sensor
• Repair or replace damaged wiring
• Reprogram or replace the PCM if necessary
• OBD-II Scanner
• Multimeter
• Socket set
$150 - $400
Moderate
• Honda Accord
• Ford F-150
• Toyota Camry
• Regularly inspect transmission wiring
• Ensure proper maintenance of the transmission system
• Avoid harsh driving conditions
Sensor Issue
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
• Consult with a professional mechanic for accurate diagnosis and repair.
Check with the vehicle manufacturer for warranty coverage on transmission components.
This code has been commonly reported in vehicles with electronic transmission controls, especially in models from the early 2000s.
Moderate – It is advisable to address this issue soon to avoid potential transmission damage.
Driving with a faulty transmission sensor can lead to unpredictable vehicle behavior and should be addressed promptly for safety.
• Vehicle in Park or Neutral
• Engine running
The Transmission Range Sensor is typically located on the side of the transmission, near the shift lever.
Q: Can I drive with a P0708 code?
A: It's not recommended to drive with this code as it can cause transmission issues and unsafe driving conditions.
Q: How is the Transmission Range Sensor tested?
A: The sensor can be tested using a multimeter to check for correct voltage and resistance values.
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