P0789

Shift Timing Solenoid A Intermittent

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Delays when shifting gears
Jerks when switching
Transmission of the gearbox into emergency mode
Increased speed before shifting
Check Engine Light Illuminates

Causes

Shift solenoid malfunction
Problems with wiring or connectors
Low or contaminated transmission fluid
Malfunction of the transmission control unit
Mechanical problems in the gearbox

How to Fix

Check the level and condition of the transmission fluid
Diagnose the electrical circuit of the solenoid
Check solenoid resistance
If necessary, replace the solenoid
Flash the transmission control unit (if necessary)

Related codes

P0785 P0786 P0787 P0788