AutoCodes – KIA – P0736 KIA

P0736 KIA Code - Reverse 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 Common causes include Low transmission fluid level, Dirty transmission fluid, 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: P0736 KIA indicates Reverse Gear Incorrect Ratio.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, 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.

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Code Popularity 5,258

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 29, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0736 KIA Description

OBDII Code P0736 KIA - Reverse Gear Incorrect Ratio - AutoCodes.com — P0736 KIA Code - Reverse Gear Incorrect Ratio

What does this mean?

What are the Possible Causes of the DTC P0736 KIA?

Low transmission fluid level
Dirty transmission fluid
Shift solenoids
Transmission mechanical problems
Transmission hydraulic control circuit

How to Fix the DTC P0736 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.

What does this mean?

Code Tech Notes

Start by inspecting the transmission fluid level and condition, and change fluid if necessary.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0736 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 P0736 KIA Code

1. What does the OBDII code P0736 mean on a Kia?

P0736 indicates "Reverse Gear Incorrect Ratio," meaning the transmission control module (TCM) has detected an improper gear ratio when the reverse gear is engaged.

2. What are the common symptoms of the P0736 code on a Kia?

Symptoms may include difficulty engaging reverse gear, slipping in reverse, reduced acceleration, transmission overheating, or the check engine light being illuminated.

3. What causes the P0736 code on a Kia?

Common causes include low transmission fluid, a faulty transmission solenoid, damaged or worn reverse gear components, internal transmission failure, or electrical issues such as damaged wiring or a bad TCM.

4. Can low transmission fluid cause the P0736 code on a Kia?

Yes, low or contaminated transmission fluid can lead to improper gear operation and trigger the P0736 code.

5. How can I fix the P0736 code on my Kia?

Start by checking the transmission fluid level and condition. If fluid levels are fine, inspect the transmission solenoids, reverse gear components, and wiring. In severe cases, a transmission rebuild or replacement may be needed.

6. Is it safe to drive my Kia with the P0736 code?

Driving with the P0736 code is not recommended, as it may cause further damage to the transmission and lead to unsafe driving conditions.

7. How much does it cost to repair the P0736 code on a Kia?

Repair costs can vary widely depending on the issue. Fixing low fluid or replacing a solenoid may cost $150â€“$400, while a full transmission rebuild could exceed $2,000.

8. Can the P0736 code be caused by a faulty TCM?

Yes, a malfunctioning transmission control module (TCM) may incorrectly interpret gear ratios and trigger the P0736 code.

9. How do I diagnose the P0736 code on my Kia?

Diagnosing involves scanning for codes, checking transmission fluid, inspecting for wiring damage, testing solenoids, and performing pressure tests on the transmission system.

10. Will clearing the P0736 code fix the issue on my Kia?

Clearing the code will turn off the check engine light temporarily, but it will not resolve the underlying issue. Proper diagnosis and repair are necessary to prevent the code from returning.