P28D3
Clutch B Motor Phase U-V-W Circuit High
P28D3 is an OBD-II diagnostic trouble code meaning: Clutch B Motor Phase U-V-W Circuit High. Common causes: open circuit in clutch motor wiring harness, oxidation of connector contacts. Estimated repair cost: $56–278.
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
Error P28D3 by Vehicle Brand
FAQ
What does the P28D3 code mean?
P28D3 is an OBD-II diagnostic trouble code that indicates: Clutch B Motor Phase U-V-W Circuit High
What causes a P28D3 error code?
The most common causes of P28D3 include: Open circuit in clutch motor wiring harness; Oxidation of connector contacts; Malfunction of the clutch motor itself; Problems with the transmission control unit.
How do I fix a P28D3 diagnostic trouble code?
To fix P28D3: Check the resistance of the motor phase windings. Inspect connectors and wiring harnesses for damage. Test the output signals of the control unit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P28D3?
Limited driving only, diagnose soon
How much does it cost to fix P28D3?
The estimated repair cost for P28D3 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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