P28E4

Shift Motor Driver Current/Temperature Too High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–167 (est.)

Symptoms

Difficulty shifting gears
Inability to change gears
Jerks when shifting gears
Enabling transmission emergency mode
Check Engine Light Is On

Causes

Shift motor malfunction
Short circuit or open circuit in shift motor wiring
Transmission control unit (TCU) malfunction
Transmission overheating
Low or contaminated transmission fluid

How to Fix

Check the level and condition of the transmission fluid
Check the shift motor wiring and connectors for damage.
Check the shift motor for proper operation
Check the transmission control unit (TCU) for malfunctions
Replace faulty components (shift motor, wiring, TCU)

Related codes

P28E0 P28E1 P28E2 P28E3