P0732 2017 Chevrolet Silverado Code - Transmission 2nd 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
- P0732 2017 Chevrolet Silverado indicates Transmission 2nd 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 P0732 2017 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 2nd gear commanded differs from the known 6th gear ratio for 2 s.
What are the Possible Causes of the DTC P0732 2017 Chevrolet Silverado?
- Low transmission fluid level
- Shift solenoid mechanical fault
- Faulty Turbine Sensor
- Faulty Output Speed Sensor
How to Fix the DTC P0732 2017 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 P0732 2017 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 P0732 2017 Chevrolet Silverado Code
1. What does the OBDII code P0732 mean on a 2017 Chevrolet Silverado?
The P0732 code indicates that the Powertrain Control Module (PCM) has detected an incorrect gear ratio for 2nd gear in the transmission.
2. What are common symptoms of the P0732 code in a 2017 Silverado?
Symptoms may include transmission slipping, difficulty shifting into or out of 2nd gear, poor acceleration, and the Check Engine Light illuminating.
3. What causes the P0732 code to appear in my Silverado?
Common causes include low or dirty transmission fluid, a faulty transmission solenoid, worn clutch plates, mechanical transmission damage, or a malfunctioning PCM.
4. Can I drive my 2017 Chevrolet Silverado with the P0732 code?
Driving with this code is not recommended as it can lead to further transmission damage or unsafe driving conditions if the transmission fails.
5. How do I diagnose the P0732 code in my Silverado?
Diagnosis involves checking the transmission fluid level and condition, scanning for additional codes, inspecting the transmission wiring and connectors, and testing the transmission solenoids.
6. How do I fix the P0732 code on my 2017 Silverado?
Repairs may include replacing or refilling the transmission fluid, repairing or replacing faulty solenoids, fixing damaged wiring, or addressing internal transmission issues.
7. Can low transmission fluid cause a P0732 code?
Yes, low or contaminated transmission fluid can cause improper gear engagement and trigger the P0732 code.
8. How much does it cost to repair the P0732 code on a 2017 Silverado?
Repair costs vary depending on the cause, ranging from $100 for a fluid flush to over $2,500 for significant transmission repairs or replacement.
9. Will resetting the Check Engine Light fix the P0732 code?
Resetting the light may temporarily clear the code, but the underlying issue must be resolved to prevent it from returning.
10. Could a faulty PCM cause the P0732 code in my Silverado?
While rare, a malfunctioning PCM can cause incorrect gear ratio readings and trigger the P0732 code if other components have been ruled out.
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