P190A Code - Drive Motor Inverter Phase U Temperature Erratic
Quick Answer
The P190A diagnostic trouble code (DTC) refers to a Drive Motor Inverter Phase U Temperature Erratic. Common causes include Faulty temperature sensor in the drive motor inverter, Wiring issues, such as a short circuit or damaged wires, Malfunctioning cooling system for the inverter. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P190A indicates Drive Motor Inverter Phase U Temperature Erratic.
- Common causes
- Common causes include Faulty temperature sensor in the drive motor inverter, Wiring issues, such as a short circuit or damaged wires, Malfunctioning cooling system for the inverter.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P190A Description
The P190A diagnostic trouble code (DTC) refers to a Drive Motor Inverter Phase U Temperature Erratic. In electric vehicles (EVs) and hybrid vehicles, the drive motor inverter is a crucial component that converts direct current (DC) from the battery into alternating current (AC) to power the electric motor. The inverter also manages the speed and torque of the motor. This specific code indicates that there is an issue with the temperature of phase U in the inverter, which could lead to erratic behavior.
Common Causes of P190A
- Faulty temperature sensor in the drive motor inverter
- Wiring issues, such as a short circuit or damaged wires
- Malfunctioning cooling system for the inverter
- Software glitches affecting the inverter's temperature control
- Environmental factors, such as high ambient temperatures or exposure to moisture
Symptoms of P190A
- Reduced acceleration or lack of power
- Jerky movements or hesitation during acceleration
- Inconsistent performance of the electric motor
- Overheating of the drive motor inverter
- Warning lights illuminated on the dashboard
How to Fix P190A
- Diagnose the root cause of the temperature erraticity by conducting a thorough inspection of the drive motor inverter and associated components.
- Test the temperature sensor to ensure it is functioning properly and replace it if necessary.
- Check the wiring connections for any signs of damage or corrosion, repairing or replacing as needed.
- Inspect the cooling system for leaks or blockages, ensuring proper circulation of coolant to maintain the inverter's temperature.
- Clear the DTC from the vehicle's computer system after completing the repairs and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P190A
The typical repair costs for addressing a Drive Motor Inverter Phase U Temperature Erratic code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for replacing a temperature sensor or repairing wiring connections could range from $100 to $300. Labor costs at auto repair shops typically range from $80 to $150 per hour, and the total repair bill could amount to several hundred dollars. It's important to note that rates may vary based on location, vehicle make and model, and the expertise of the technicians performing the repairs. It's advisable to obtain a detailed estimate from a qualified mechanic to determine the precise cost for addressing this issue.
Need more information about the P190A code?
Need more information on how to fix the P190A code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P190A code diagnosed by a professional: Find a repair shop in your area
Code P190A Information for Specific Makes
- P190A Buick — Drive Motor Inverter Phase U Temperature Erratic
- P190A Cadillac — Drive Motor Inverter Phase U Temperature Erratic
- P190A Chevrolet — Drive Motor Inverter Phase U Temperature Erratic
- P190A GMC — Drive Motor Inverter Phase U Temperature Erratic
Frequently Asked Questions about P190A Code
No Frequently Asked Questions about P190A Code found.
Discuss the causes and fixes for P190A OBDII Code
Code P190A comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.