P0733 2015 Chevrolet Silverado Code - Transmission 3rd 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
- P0733 2015 Chevrolet Silverado indicates Transmission 3rd 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 P0733 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 3rd gear commanded differs from the known 6th gear ratio for 2 s.
What are the Possible Causes of the DTC P0733 2015 Chevrolet Silverado?
- Low transmission fluid level
- Shift solenoid mechanical fault
- Faulty Turbine Sensor
- Faulty Output Speed Sensor
How to Fix the DTC P0733 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 P0733 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 P0733 2015 Chevrolet Silverado code?
Need more information on how to fix the P0733 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0733 2015 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0733 2015 Chevrolet Silverado Code
What does the OBDII code P0733 mean on a 2015 Chevrolet Silverado?
P0733 indicates that the transmission's control system has detected an incorrect ratio for 3rd gear, which may affect vehicle performance.
What are common symptoms of code P0733 on a 2015 Chevrolet Silverado?
Symptoms include transmission slipping, poor acceleration, rough shifting, or the inability to engage 3rd gear properly.
What causes the P0733 code on a 2015 Chevrolet Silverado?
Common causes include low transmission fluid, faulty shift solenoids, worn clutch packs, damaged gear components, or issues with the transmission control module (TCM).
Can driving with the P0733 code harm my 2015 Chevrolet Silverado?
Yes, driving with this code can cause further damage to the transmission and lead to more expensive repairs. It's best to address it promptly.
How can I diagnose the P0733 code on a 2015 Chevrolet Silverado?
Start by checking the transmission fluid level and condition, inspect wiring and connectors, and use a scan tool to monitor transmission performance and solenoid operation.
How do I fix the P0733 code on a 2015 Chevrolet Silverado?
Repairs may include refilling or replacing transmission fluid, replacing faulty solenoids, repairing damaged wiring, or rebuilding the transmission if internal components are worn.
Can low transmission fluid cause the P0733 code on my 2015 Chevrolet Silverado?
Yes, low or dirty transmission fluid can affect gear engagement and trigger this code. Always check the fluid first when diagnosing transmission issues.
How much does it cost to repair the P0733 code on a 2015 Chevrolet Silverado?
Repair costs vary depending on the issue. Minor repairs like fluid replacement may cost under $100, but transmission rebuilds or replacements can exceed $3,000.
Is a software update needed to fix the P0733 code on a 2015 Chevrolet Silverado?
In some cases, updating the transmission control module software may resolve issues causing the P0733 code, especially if it's related to incorrect calibration.
Can a bad TCM cause the P0733 code on a 2015 Chevrolet Silverado?
Yes, a malfunctioning TCM can fail to manage gear ratios properly, leading to the P0733 code. Testing and reprogramming or replacing the TCM may be necessary.
Discuss the causes and fixes for P0733 2015 Chevrolet Silverado OBDII Code
Code P0733 2015 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
