P1775 2016 GMC Sierra Code - Transmission Range Request Signal Message Counter Incorrect
Quick Answer
Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission 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
- P1775 2016 GMC Sierra indicates Transmission Range Request Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission 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 P1775 2016 GMC Sierra Description
What are the Possible Causes of the DTC P1775 2016 GMC Sierra?
- Faulty Transmission Control Module (TCM)
- Transmission Control Module harness is open or shorted
- Transmission Control Module circuit poor electrical connection
How to Fix the DTC P1775 2016 GMC Sierra?
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 P1775 2016 GMC Sierra 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.
Need more information about the P1775 2016 GMC Sierra code?
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Frequently Asked Questions about P1775 2016 GMC Sierra Code
1. What are the common symptoms of OBDII code P1775 in a 2016 GMC Sierra?
- Common symptoms include erratic shifting, difficulty shifting gears, transmission slippage, and the vehicle going into limp mode.
2. What does the OBDII code P1775 "Transmission Range Request Signal Message Counter Incorrect" mean for a 2016 GMC Sierra?
- This code indicates a discrepancy between the signal sent by the transmission range sensor and the expected value stored in the vehicle's computer.
3. What are the possible causes of OBDII code P1775 in a 2016 GMC Sierra?
- The possible causes include a faulty transmission range sensor, damaged wiring or connectors in the transmission range sensor circuit, or issues with the vehicle's computer.
4. How serious is OBDII code P1775 in a 2016 GMC Sierra?
- This code can lead to drivability issues and potential transmission damage if left unresolved. It is recommended to address this issue promptly.
5. Can OBDII code P1775 in a 2016 GMC Sierra be fixed without professional help?
- Depending on your mechanical skills, you may be able to fix this issue by checking and repairing the transmission range sensor circuit. However, professional diagnosis and repair are recommended for accurate and lasting solutions.
6. How can I diagnose OBDII code P1775 in a 2016 GMC Sierra?
- Diagnosis involves using a scan tool to read the code, checking the transmission range sensor for proper operation, inspecting the wiring and connectors for damage, and verifying the signal values with manufacturer specifications.
7. Are there any DIY repair tips for addressing OBDII code P1775 in a 2016 GMC Sierra?
- DIY repair tips include checking and cleaning the transmission range sensor connectors, inspecting the wiring for damage, and ensuring proper alignment of the sensor.
8. Will driving with OBDII code P1775 in a 2016 GMC Sierra cause further damage?
- Continuing to drive with this code may lead to further transmission issues and potential damage. It is best to address the underlying problem as soon as possible.
9. How much does it typically cost to repair OBDII code P1775 in a 2016 GMC Sierra?
- The cost of repair can vary depending on the cause of the issue and whether professional help is required. Repairs may range from a few hundred to over a thousand dollars.
10. Can resetting the OBDII code P1775 in a 2016 GMC Sierra resolve the issue temporarily?
- Resetting the code may temporarily clear the warning light, but if the underlying issue is not fixed, the code is likely to reappear once the problem is detected again by the vehicle's computer.
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