Transmission Range Sensor A Circuit Intermittent

What it means

The computer has seen the transmission range sensor signal drop out or jump suddenly and then return. This pattern usually points to a poor connector contact, a partly broken wire or worn contacts inside the sensor.

Related codes: P0705P0706P0707P0708P0850

Symptoms4

• Check engine light coming on and off.
• Gear indicator flickering or briefly going blank while driving.
• Occasional no-crank in park.
• Occasional sudden or harsh shifts.

Possible causes5

• Poor contact or corrosion at the sensor connector pins.
• A partly broken wire affected by vibration or engine movement.
• Worn internal sensor contacts in certain positions.
• Loose shift cable leaving the lever near the edge of two positions.
• A weak ground connection.

How to diagnose5

1. Watch the position reading on a scan tool while gently wiggling the wiring and connector to bring out the dropout.
2. Move the lever slowly through each position and watch for any jump or dropout in the reading.
3. Inspect the connector pins for tightness, corrosion or oil.
4. Check the shift cable adjustment and bushings.
5. Measure ground resistance and supply voltage while moving the wiring.

How to fix5

1. Clean the connector and tighten loose pins, or replace the connector.
2. Repair the partly broken wire and secure the harness to reduce vibration.
3. Adjust or replace the shift cable.
4. Replace the sensor if the dropout is inside it, then adjust it.
5. Clear the codes and watch the position reading during a road test to confirm it stays steady.

Repair cost

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

A connector or wire repair usually solves it at low cost; the cost rises if a new sensor is needed, and diagnosis may take longer because the fault does not always show.

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