AutoCodes – Hyundai – P1735 Hyundai

P1735 Hyundai Code - Speed Sensor Reference High

Quick Answer

P1735 Hyundai indicates Speed Sensor Reference High. Common causes include FaultySpeed Sensor, Speed Sensor harness is open or shorted, Speed Sensor circuit poor electrical connection. 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: P1735 Hyundai indicates Speed Sensor Reference High.
Common causes: Common causes include FaultySpeed Sensor, Speed Sensor harness is open or shorted, Speed Sensor circuit poor electrical connection.
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 3,635

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 13, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1735 Hyundai Description

OBDII Code P1735 Hyundai - Speed Sensor Reference High - AutoCodes.com — P1735 Hyundai Code - Speed Sensor Reference High

What does this mean?

What are the Possible Causes of the DTC P1735 Hyundai?

FaultySpeed Sensor
Speed Sensor harness is open or shorted
Speed Sensor circuit poor electrical connection

How to Fix the DTC P1735 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1735 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.

Need more information about the P1735 Hyundai code?

Need more information on how to fix the P1735 Hyundai code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P1735 Hyundai Code

1. What does the OBDII code P1735 mean on a Hyundai?

P1735 indicates a "Speed Sensor Reference High" issue, meaning there's a problem with the speed sensor signal being outside the expected range.

2. What are the common symptoms of code P1735 on a Hyundai?

Symptoms may include erratic or incorrect speedometer readings, transmission shifting issues, reduced fuel efficiency, or the Check Engine Light being illuminated.

3. What causes the P1735 code to appear in a Hyundai?

Common causes include a faulty speed sensor, damaged wiring or connectors, electrical interference, or a malfunctioning transmission control module (TCM).

4. Can driving with code P1735 damage my Hyundai?

Driving with this code may cause long-term damage to the transmission if shifting problems persist, or it may lead to unsafe driving conditions due to incorrect speed readings.

5. How do I diagnose the P1735 code on a Hyundai?

Start by inspecting the speed sensor and its wiring for damage or corrosion, check for loose connectors, and use a multimeter to test sensor voltage output.

6. How do I fix the P1735 code on my Hyundai?

Repairs may include replacing the faulty speed sensor, repairing damaged wires or connectors, or reprogramming/updating the transmission control module.

7. How much does it cost to fix the P1735 code on a Hyundai?

The repair cost can range from $100 to $400 depending on whether the speed sensor needs replacement, wiring repairs, or professional diagnostics.

8. Can a faulty speed sensor trigger code P1735 on a Hyundai?

Yes, a malfunctioning speed sensor is one of the most common reasons for this code to appear.

9. Will clearing the P1735 code fix the problem in a Hyundai?

Clearing the code may temporarily turn off the Check Engine Light, but the underlying issue must be resolved to prevent the code from reappearing.

10. Do I need a professional mechanic to fix the P1735 code on my Hyundai?

If you're experienced with car repairs, you can attempt basic diagnostics and sensor replacement yourself. However, complex issues or programming may require a professional mechanic.