AutoCodes – KIA – P0732 KIA

P0732 KIA Code - Second Gear Incorrect Ratio

Quick Answer

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by Transmission Control Module (TCM) as follows: Torque converter slip ratio = A x C/B A: Output shaft revolution signal from revolution sensor B: Engine speed signal from Engine Control Module (ECM) C: Gear ratio determined as gear position which TCM supposes If the actual gear position is higher than the position (2nd) supposed by TCM, the slip ratio will be more than normal. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Shift Solenoids. 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 KIA indicates Second Gear Incorrect Ratio.
Common causes
Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Shift Solenoids.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 27,463
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0732 KIA Description

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by Transmission Control Module (TCM) as follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from Engine Control Module (ECM)
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (2nd) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
OBDII Code P0732 KIA - Second Gear Incorrect Ratio - AutoCodes.com
P0732 KIA Code - Second Gear Incorrect Ratio

What are the Possible Causes of the DTC P0732 KIA?

  • Low transmission fluid level
  • Dirty transmission fluid
  • Faulty Shift Solenoids
  • Shift Solenoids harness is open or shorted
  • Shift Solenoids circuit poot electrical connection
  • Transmission mechanical problems
  • Transmission hydraulic control circuit

How to Fix the DTC P0732 KIA?

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 KIA 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0732 KIA Code

1. What does the OBDII code P0732 mean on a Kia?

P0732 indicates that the transmission's second gear ratio is incorrect, which means the powertrain control module (PCM) has detected a mismatch between the input and output shaft speeds while in second gear.

2. What are the common symptoms of P0732 on a Kia?

Symptoms include difficulty shifting gears, slipping in second gear, reduced acceleration, transmission overheating, and the check engine light being illuminated.

3. What causes the P0732 code on a Kia?

Common causes include low transmission fluid, worn or damaged clutches, faulty shift solenoids, a malfunctioning transmission control module (TCM), or internal transmission issues.

4. Can low transmission fluid cause P0732 on a Kia?

Yes, low or dirty transmission fluid can lead to improper gear engagement and cause the PCM to detect an incorrect ratio in second gear.

5. How do I fix the P0732 code on my Kia?

Repairs may include checking and refilling transmission fluid, replacing damaged shift solenoids, repairing internal transmission components, or reprogramming the PCM/TCM.

6. Is it safe to drive my Kia with a P0732 code?

Driving with a P0732 code can worsen transmission damage and lead to unsafe driving conditions. It's recommended to address the issue promptly.

7. How is P0732 diagnosed on a Kia?

Diagnosis typically involves scanning for additional codes, checking transmission fluid levels, inspecting wiring and connectors, and testing the transmission's internal components.

8. Can a faulty speed sensor trigger the P0732 code on a Kia?

Yes, a malfunctioning input or output speed sensor can cause the PCM to misinterpret gear ratios, leading to a P0732 code.

9. How much does it cost to fix P0732 on a Kia?

The cost depends on the cause, ranging from $100 for fluid replacement to $1,500+ for transmission repairs or replacement.

10. Will resetting the check engine light clear the P0732 code on a Kia?

Resetting the light may temporarily clear the code, but unless the root issue is resolved, the code will likely return.

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