P09A8

Gate Select Position Circuit C Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Incorrect gear shifting
The gearbox goes into emergency mode
Check Engine light comes on
Reduced vehicle dynamics
Difficulty starting the engine

Causes

Open or short circuit in the sensor circuit
Selector lever position sensor malfunction
Problems with the transmission control unit
Oxidation of contacts in connectors
Mechanical damage to wiring

How to Fix

Check the integrity of wiring and connectors
Check the resistance of the selector position sensor
Check the signal from the sensor to the control unit
Replace the selector lever position sensor if necessary
Update transmission control unit software

Related codes

P09A7 P09A9 P09AA