P190A Buick Code - Drive Motor Inverter Phase U Temperature Erratic
Quick Answer
The Generator Control Module also called the Starter/Generator Control Module is comprised of the following three control modules: the Hybrid/EV Powertrain Control Module 1, 14 V Power Module, and the Drive Motor Control Module. Common causes include Faulty Starter/Generator Control Module, Starter/Generator Control Module harness is open or shorted, Starter/Generator Control Module circuit poor electrical connection. 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 Buick indicates Drive Motor Inverter Phase U Temperature Erratic.
- Common causes
- Common causes include Faulty Starter/Generator Control Module, Starter/Generator Control Module harness is open or shorted, Starter/Generator Control Module circuit poor electrical connection.
- 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.
Code P190A Buick Description
This is an internal fault detection of the Starter/Generator Control Module, and no external circuits are involved.
The Diagnostic Trouble Code (DTC) will be set when the Drive Motor Control Module has detected an erratic temperature on inverter phase U for greater than 28 s.
What are the Possible Causes of the DTC P190A Buick?
- Faulty Starter/Generator Control Module
- Starter/Generator Control Module harness is open or shorted
- Starter/Generator Control Module circuit poor electrical connection
How to Fix the DTC P190A Buick?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P190A Buick code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P190A Buick Code
1. What are the common symptoms of OBDII code P190A in a Buick related to the Drive Motor Inverter Phase U Temperature Erratic?
- Common symptoms include poor acceleration, reduced power output, and potentially a warning light on the dashboard.
2. What are some possible causes of OBDII code P190A in a Buick indicating Drive Motor Inverter Phase U Temperature Erratic?
- Causes may include a faulty drive motor inverter, issues with the phase U temperature sensor, wiring problems, or a malfunctioning control module.
3. How can I diagnose the OBDII code P190A in a Buick associated with Drive Motor Inverter Phase U Temperature Erratic?
- Diagnosing this code typically involves using a scan tool to read the error code, checking the drive motor inverter and associated components for any visible damage, and testing the temperature sensor's functionality.
4. Can I still drive my Buick with the OBDII code P190A present for Drive Motor Inverter Phase U Temperature Erratic?
- It is not recommended to continue driving your Buick with this code active, as it can lead to further damage and potential safety hazards.
5. What are some repair tips for addressing OBDII code P190A related to Drive Motor Inverter Phase U Temperature Erratic in a Buick?
- Repair tips may include checking and repairing any damaged wiring, replacing the drive motor inverter if necessary, and ensuring the phase U temperature sensor is functioning correctly.
6. How serious is OBDII code P190A in a Buick indicating Drive Motor Inverter Phase U Temperature Erratic?
- This code should be taken seriously, as it can affect the performance and safety of your vehicle. It is advisable to address the issue promptly.
7. Can resetting the OBDII code P190A in a Buick fix the Drive Motor Inverter Phase U Temperature Erratic problem?
- Resetting the code may temporarily clear the error, but it is essential to diagnose and address the underlying issue to prevent future occurrences.
8. How much does it typically cost to repair OBDII code P190A in a Buick related to Drive Motor Inverter Phase U Temperature Erratic?
- The cost of repair can vary depending on the specific cause of the issue, but it may involve parts replacement and labor costs.
9. Are there any recalls or technical service bulletins related to OBDII code P190A in Buick vehicles for Drive Motor Inverter Phase U Temperature Erratic?
- It is recommended to check with a Buick dealership or refer to online resources for any relevant recalls or technical service bulletins related to this code.
10. Is it possible to prevent OBDII code P190A from occurring in a Buick due to Drive Motor Inverter Phase U Temperature Erratic?
- Regular maintenance and inspections of the drive motor inverter system, including the temperature sensor, can help prevent issues leading to this error code.
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