U1901 Chevrolet Code - Lost Communication With Infotainment Multifunction Switch Module
Quick Answer
Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Infotainment Multifunction Switch Module, Infotainment Multifunction Switch Module harness is open or shorted, Infotainment Multifunction Switch 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
- U1901 Chevrolet indicates Lost Communication With Infotainment Multifunction Switch Module.
- Common causes
- Common causes include Faulty Infotainment Multifunction Switch Module, Infotainment Multifunction Switch Module harness is open or shorted, Infotainment Multifunction Switch 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 U1901 Chevrolet Description
What are the Possible Causes of the DTC U1901 Chevrolet?
- Faulty Infotainment Multifunction Switch Module
- Infotainment Multifunction Switch Module harness is open or shorted
- Infotainment Multifunction Switch Module circuit poor electrical connection
How to Fix the DTC U1901 Chevrolet?
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 U1901 Chevrolet 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 U1901 Chevrolet Code
1. What are the common symptoms of OBDII code U1901 in a Chevrolet related to lost communication with the Infotainment Multifunction Switch Module?
- Common symptoms include a malfunctioning infotainment system, loss of control over various vehicle functions from the switch module, and warning lights on the dashboard.
2. What are the possible causes of OBDII code U1901 in a Chevrolet indicating a communication issue with the Infotainment Multifunction Switch Module?
- Possible causes include wiring issues, faulty connections, a defective switch module, or a problem with the vehicle's main computer system.
3. How can I diagnose OBDII code U1901 in a Chevrolet related to lost communication with the Infotainment Multifunction Switch Module?
- Diagnosis typically involves checking the wiring and connections leading to the switch module, testing the module itself for functionality, and using a diagnostic scanner to read the trouble codes.
4. Is it safe to continue driving with OBDII code U1901 in a Chevrolet due to lost communication with the Infotainment Multifunction Switch Module?
- It is not recommended to drive the vehicle with this code present, as it can affect the operation of important vehicle functions and potentially lead to further issues.
5. Can I repair OBDII code U1901 in a Chevrolet related to the Infotainment Multifunction Switch Module communication problem myself?
- While some basic checks like inspecting wiring and connections can be done by DIY enthusiasts, diagnosing and repairing this issue often requires specialized tools and knowledge, so it is best left to professionals.
6. How much does it typically cost to repair OBDII code U1901 in a Chevrolet caused by lost communication with the Infotainment Multifunction Switch Module?
- Repair costs can vary depending on the exact cause of the issue, but they can range from a few hundred to over a thousand dollars, including parts and labor.
7. Are there any preventive measures to avoid encountering OBDII code U1901 in a Chevrolet due to communication problems with the Infotainment Multifunction Switch Module?
- Regular vehicle maintenance, checking for any signs of wiring damage, and addressing any electrical issues promptly can help prevent this code from appearing.
8. Can resetting the vehicle's computer system clear OBDII code U1901 related to the Infotainment Multifunction Switch Module communication issue?
- Resetting the system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear once the problem resurfaces.
9. How long does it take to repair OBDII code U1901 in a Chevrolet caused by lost communication with the Infotainment Multifunction Switch Module?
- The repair time can vary depending on the exact cause and complexity of the issue, but it may take a few hours to a full day for a professional technician to diagnose and fix the problem.
10. Can a faulty Infotainment Multifunction Switch Module cause other OBDII codes to appear in a Chevrolet?
- Yes, a faulty switch module can lead to communication errors with other vehicle systems, triggering additional OBDII trouble codes beyond U1901.
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