P0736 Hyundai 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 Hyundai 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.
Code P0736 Hyundai Description
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
What are the Possible Causes of the DTC P0736 Hyundai?
- Low transmission fluid level
- Dirty transmission fluid
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit
How to Fix the DTC P0736 Hyundai?
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 P0736 Hyundai 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 P0736 Hyundai Code
1. What does the OBDII code P0736 mean on a Hyundai?
P0736 indicates an incorrect gear ratio in reverse, meaning the transmission is unable to properly engage or maintain the correct ratio for reverse gear.
2. What are the common symptoms of code P0736 on a Hyundai?
Symptoms may include difficulty shifting into reverse, no reverse gear functionality, transmission slipping, or abnormal noises when attempting to engage reverse.
3. What causes the P0736 code to appear on a Hyundai?
Common causes include low transmission fluid, damaged reverse gear components, a malfunctioning transmission control module (TCM), or issues with sensors like the input or output shaft speed sensor.
4. Can low transmission fluid cause code P0736 on a Hyundai?
Yes, insufficient or degraded transmission fluid can lead to improper gear operation and trigger the P0736 code.
5. How is code P0736 diagnosed on a Hyundai?
A mechanic will typically check for related codes, inspect transmission fluid levels and quality, and test the speed sensors and internal transmission components.
6. Can driving with code P0736 cause further damage to my Hyundai?
Yes, continuing to drive with this code may lead to further transmission damage and more expensive repairs.
7. How can code P0736 be fixed on a Hyundai?
Repairs may include refilling or replacing the transmission fluid, replacing faulty speed sensors, repairing or rebuilding the transmission, or reprogramming the TCM.
8. Is it expensive to fix code P0736 on a Hyundai?
The cost varies depending on the cause; simple fixes like fluid replacement are cheaper, while transmission repairs or replacements can be costly.
9. Can a faulty speed sensor cause code P0736 on a Hyundai?
Yes, a malfunctioning input or output shaft speed sensor can result in incorrect gear ratio readings and trigger this code.
10. Will clearing the code P0736 fix the issue on a Hyundai?
Clearing the code without addressing the underlying issue will only temporarily remove the warning, and the problem will likely reoccur.
Discuss the causes and fixes for P0736 Hyundai OBDII Code
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