Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the electrical circuit that controls the motor responsible for shifting gears. It's like if a toy car's remote control wasn't working because the wires inside were loose.
The P28E0 code indicates that the voltage in the circuit controlling the shift motor phases U, V, and W is lower than expected, which can affect the vehicle's ability to change gears properly.
The shift motor is part of the transmission system and is responsible for changing gears. The U-V-W circuit refers to the three-phase electrical circuit that powers the motor. A 'circuit low' condition means that the voltage or current in this circuit is below the threshold needed for proper operation, potentially due to wiring issues, a faulty motor, or a problem with the control module.
• Difficulty or inability to change gears
• Transmission stuck in one gear
• Illuminated check engine light
• Faulty shift motor
• Damaged or corroded wiring or connectors
• Malfunctioning transmission control module
Shift Motor: A motor that changes the gears in the transmission.
Circuit Low: A condition where electrical voltage or current is below the required level.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the shift motor for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty shift motor.
• Reprogram or replace the transmission control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $800
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regular maintenance checks of the transmission system.
• Ensure connectors and wiring are kept clean and dry.
• Address any transmission issues promptly.
Transmission System Issue
• Do not drive the vehicle if gear shifting is problematic.
• Consult a professional mechanic for accurate diagnosis and repair.
Check your vehicle's warranty for coverage on transmission components.
This code has been associated with vehicles experiencing electrical issues in the transmission system, often due to wear and tear or environmental factors affecting the wiring.
High – Affected vehicles may experience drivability issues, making it unsafe to drive.
Driving with transmission issues can be dangerous. Address this problem immediately to ensure vehicle safety.
• Vehicle at operating temperature
• Transmission in neutral or park
The shift motor is typically located within or near the transmission assembly.
Q: Can I drive with a P28E0 code?
A: It's not recommended, as the vehicle may have trouble shifting gears, which can be dangerous.
Q: How can I prevent this code from appearing?
A: Regular maintenance and inspections of the transmission system can help prevent issues with the shift motor circuit.
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