The P0732: Gear 2 Incorrect Ratio refers to an issue where the transmission detects an improper gear ratio while operating in second gear. This can be caused by mechanical problems within the transmission, faulty sensors, or solenoid issues affecting the gear ratio control.
P0732 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0732: Gear 2 Incorrect Ratio |
| Is it serious? | Yes, improper gear ratios can cause drivability issues and damage the transmission over time. |
| Possible causes | – Incorrect gear ratio detected for gear 2 – Transmission mechanical issues – Faulty sensors or solenoids |
| How to diagnose? | – Inspect and test for mechanical issues in the transmission – Check gear ratio sensors and solenoids – Replace faulty components if necessary |
P0732 Meaning
The P0732 code indicates that the transmission control module (TCM) has detected an incorrect gear ratio while the vehicle is in second gear. This could be due to internal transmission problems, issues with the gear ratio sensors, or malfunctioning solenoids that control gear shifting.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to see if there are any additional transmission-related codes that could offer more insight. | OBD-II Scanner |
| Inspect Transmission Components | Check for mechanical issues such as worn gears, damaged bands, or internal transmission components that could cause incorrect gear ratios. | Transmission Tools, Flashlight |
| Test Gear Ratio Sensors | Test the sensors that monitor gear ratios in the transmission to ensure they are functioning correctly. | Multimeter, Diagnostic Scanner |
| Check Solenoids | Inspect and test the solenoids responsible for gear shifting to ensure they are operating properly. Replace faulty solenoids if necessary. | Multimeter, Solenoid Tester |
| Inspect Transmission Fluid | Ensure that the transmission fluid is at the correct level and not contaminated, as poor fluid quality can affect gear ratios. | Transmission Fluid Tester, Dipstick |
| Replace Faulty Components | Replace any damaged or faulty sensors, solenoids, or internal transmission components as required. | Replacement Parts, Wrenches, Screwdrivers |
| Clear the Code and Test Drive | After repairs, clear the code using an OBD-II scanner and take the vehicle for a test drive to ensure the gear ratio issue is resolved. | OBD-II Scanner |
| Recheck for Codes | After the test drive, rescan the vehicle to ensure that the P0732 code has not returned. | OBD-II Scanner |
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