P0735 2015 Chevrolet Silverado Code - Transmission 5th 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
- P0735 2015 Chevrolet Silverado indicates Transmission 5th 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 P0735 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 5th gear commanded differs from the known 6th gear ratio for 2 s.
What are the Possible Causes of the DTC P0735 2015 Chevrolet Silverado?
- Low transmission fluid level
- Shift solenoid mechanical fault
- Faulty Turbine Sensor
- Faulty Output Speed Sensor
How to Fix the DTC P0735 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 P0735 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.
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Frequently Asked Questions about P0735 2015 Chevrolet Silverado Code
1. What does the OBDII code P0735 mean on a 2015 Chevrolet Silverado?
P0735 indicates that the transmission's 5th gear ratio is incorrect, meaning the actual gear ratio does not match the expected ratio set by the vehicle's computer.
2. What are the common symptoms of code P0735 in a 2015 Chevy Silverado?
Symptoms may include a check engine light, harsh shifting, slipping in 5th gear, transmission overheating, or reduced fuel efficiency.
3. What causes the P0735 code in a 2015 Chevrolet Silverado?
Common causes include low transmission fluid, a faulty transmission solenoid, worn clutch packs, a damaged valve body, or internal transmission issues.
4. Can low transmission fluid cause the P0735 code in my Silverado?
Yes, low or contaminated transmission fluid can lead to insufficient hydraulic pressure, causing the 5th gear to malfunction and trigger the P0735 code.
5. How do you diagnose the P0735 code on a 2015 Silverado?
Diagnosis involves checking the transmission fluid level and condition, inspecting for fault codes, testing the transmission solenoids, and performing a pressure test on the transmission.
6. Can driving with the P0735 code damage my 2015 Chevy Silverado?
Yes, continuing to drive with this code can lead to further damage to the transmission, especially if the issue is related to internal components or low fluid.
7. How is the P0735 code fixed on a 2015 Chevrolet Silverado?
Repairs may include topping off or replacing the transmission fluid, replacing faulty solenoids, repairing or replacing the valve body, or rebuilding the transmission if internal damage is found.
8. Is the P0735 code covered under the powertrain warranty for my 2015 Silverado?
It depends on your warranty terms and mileage, but transmission issues like this are often covered under the powertrain warranty if it is still active.
9. How much does it cost to repair the P0735 code on a 2015 Silverado?
Costs vary depending on the issue, ranging from $100–$300 for a fluid change or solenoid replacement to $1,000–$3,000 for major transmission repairs.
10. Can a software update fix the P0735 code in a 2015 Chevy Silverado?
In some cases, a software update for the transmission control module (TCM) may resolve the issue, but this is only applicable if a known programming error exists.
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