P0708

Transmission Range Sensor A Circuit High

Car Fault Codes Transmission

Can you still drive? With care, short trips only

Who can fix it? Needs a workshop

Typical repair time 30 minutes – 2.5 hours

Typical cost SAR 100 to 900

What it means

The computer has seen the transmission range sensor signal voltage above the allowed limit. This usually points to an open circuit, such as a broken wire or unplugged connector, a signal wire shorted to a voltage source, or a lost sensor ground.

Symptoms4

Check engine light on.
Engine will not crank in park or neutral.
Gear indicator blank or stuck on one position.
Transmission in limp mode.

Possible causes5

Sensor connector unplugged, loose or with corroded pins.
Open circuit in the sensor signal or ground wire.
Signal wire shorted to a wire carrying voltage.
Internal sensor fault leaving its circuit open.
A fault in the transmission control module (rare).

How to diagnose5

First confirm the sensor connector is fully seated and its pins are in good condition.
Watch the sensor reading on a scan tool while gently moving the wiring to find an intermittent break.
Check continuity of the signal and ground wires between the sensor and the module.
Check the signal wire for unexpected voltage with the key off and the sensor unplugged.
Measure the sensor signals in each position and compare them with the manufacturer table.

How to fix5

Reseat the connector and clean the pins, or replace it if damaged.
Repair the broken wire or poor ground.
Separate the signal wire from any wire carrying voltage and insulate it properly.
Replace and adjust the transmission range sensor if its internal circuit is open.
Clear the codes and confirm the gear indicator and cranking in park and neutral work correctly.

Repair cost

0–500

500–2,000

2,000–5,000

5,000+

In Saudi riyals; the highlighted part is the expected range for this fault.

The fix is often a connector or wire repair at low cost; the cost rises when the sensor must be replaced.

Prices are rough estimates for common cars at independent workshops and vary with the car and the source of the part.
Prices last updated: September 2026

Frequently asked questions

What should I check first?

The sensor connector. A high voltage usually means an open circuit, and a loose or unplugged connector after service is a common and easy fix.

Can I drive with this code?

Short distances with care if the engine starts and the car moves normally, checking the selector position by hand, because the gear indicator and reverse lights may not work correctly.

Was this explanation helpful?

Tap the stars to rate; you can change it later.

This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.

Report a mistake

Spotted something inaccurate? Tell us and we will review and correct it.