P0904

Gate Select Position Circuit A

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine light comes on
Gear shifting problems
The gearbox goes into emergency mode
Incorrect display of selector position on the dashboard

Causes

Broken or damaged wiring
Selector lever position sensor malfunction
Poor contact in connectors
Problems with the transmission control unit
Mechanical damage to the gear selector

How to Fix

Check the integrity of wiring and connectors
Check the resistance of the selector lever position sensor
Clean connector contacts
Scan the control unit for additional errors
If necessary, replace the selector lever position sensor

Related codes

P0900 P0901 P0903