P28D3

Clutch B Motor Phase U-V-W Circuit High

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Rough gear shifting
Jerking when switching
Switching to emergency transmission mode
CHECK ENGINE indicator
Reduced vehicle dynamics

Causes

Open circuit in clutch motor wiring harness
Oxidation of connector contacts
Malfunction of the clutch motor itself
Problems with the transmission control unit
Short circuit in phase circuits

How to Fix

Check the resistance of the motor phase windings
Inspect connectors and wiring harnesses for damage
Test the output signals of the control unit
If necessary, replace the clutch motor
Reset the error and take a test drive

Related codes

P28D0 P28D1 P28D2