P0731 2015 Chevrolet Silverado Code - Transmission 1st Gear Ratio Incorrect
Quick Answer
The transmission turbine speed sensor and vehicle speed sensor are hall-effect sensors. Common causes include Low transmission fluid level, Shift solenoid mechanical fault, Faulty Turbine Sensor. 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
- P0731 2015 Chevrolet Silverado indicates Transmission 1st Gear Ratio Incorrect.
- Common causes
- Common causes include Low transmission fluid level, Shift solenoid mechanical fault, Faulty Turbine Sensor.
- 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 P0731 2015 Chevrolet Silverado Description
The TCM provides a 9 V reference circuit and a signal circuit to each of the sensors. As the 1-2-3-4-5-6 clutch piston housing and transmission output shaft or transfer case output rotates, the sensors produce a signal frequency based on the teeth on the reluctor wheel. The TCM calculates the transmission gear ratio based on the speed sensor signals and compares the calculated gear ratio to the commanded gear ratio.
The Diagnostic Trouble Code (DTC) will be set when the TCM detects the calculated gear ratio with 1st gear commanded differs from the known 1st gear ratio for 2 s.
What are the Possible Causes of the DTC P0731 2015 Chevrolet Silverado?
- Low transmission fluid level
- Shift solenoid mechanical fault
- Faulty Turbine Sensor
- Faulty Output Speed Sensor
How to Fix the DTC P0731 2015 Chevrolet Silverado?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0731 2015 Chevrolet Silverado 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 P0731 2015 Chevrolet Silverado code?
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Frequently Asked Questions about P0731 2015 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P0731 in a 2015 Chevrolet Silverado?
The common symptoms include harsh shifting, delayed engagement when shifting into gear, and the transmission slipping or failing to engage properly in first gear.
2. What are the possible causes of OBDII code P0731 in a 2015 Chevrolet Silverado?
Possible causes include low transmission fluid levels, a faulty transmission solenoid, a worn-out clutch, a malfunctioning valve body, or internal transmission damage.
3. How can I diagnose the cause of OBDII code P0731 in my 2015 Chevrolet Silverado?
Diagnosis typically involves checking the transmission fluid level and condition, conducting a thorough inspection of the transmission system, and using a scan tool to retrieve additional transmission-related trouble codes.
4. Can driving with OBDII code P0731 in a 2015 Chevrolet Silverado cause further damage?
Continuing to drive with this code may lead to increased wear and tear on the transmission components, potentially resulting in more severe damage and costly repairs over time.
5. How can I repair OBDII code P0731 in my 2015 Chevrolet Silverado?
Repair options may include topping up or changing the transmission fluid, replacing faulty solenoids or components, repairing or replacing the clutch, or performing a complete transmission rebuild depending on the underlying issue.
6. Is it safe to continue driving my 2015 Chevrolet Silverado with OBDII code P0731?
It is not recommended to drive the vehicle extensively with this code present, as it can lead to further transmission problems and potential safety hazards on the road.
7. Can resetting the OBDII code P0731 in a 2015 Chevrolet Silverado make it go away permanently?
Simply resetting the code without addressing the underlying issue will not permanently resolve the problem. It is essential to diagnose and repair the root cause of the code to prevent it from reoccurring.
8. How much does it typically cost to fix OBDII code P0731 in a 2015 Chevrolet Silverado?
The cost of repairs can vary depending on the specific issue causing the code, the extent of the damage, and whether you choose to address the problem yourself or take it to a professional mechanic.
9. Are there any preventive maintenance tips to avoid OBDII code P0731 in a 2015 Chevrolet Silverado?
Regularly checking and maintaining proper transmission fluid levels, staying up to date on transmission services, and addressing any transmission issues promptly can help prevent the occurrence of this code.
10. Can a DIY enthusiast with basic mechanical skills fix OBDII code P0731 in a 2015 Chevrolet Silverado?
Depending on the specific cause of the code, some repairs related to OBDII code P0731 may be suitable for DIY enthusiasts with basic mechanical skills. However, more complex issues may require professional expertise.
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