AutoCodes – Hyundai – C1662 Hyundai

C1662 Hyundai Code - Auto Learning failure

Quick Answer

The Tire Pressure Monitoring System (TPMS) system monitors the pressure of the tire and when it drops below a certain pressure, the TPMS ECU makes the warning lamp turn on for notifying the driver. Common causes include Faulty TPMS Sensor. 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: C1662 Hyundai indicates Auto Learning failure.
Common causes: Common causes include Faulty TPMS Sensor.
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 25,111

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 Nov 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1662 Hyundai Description

The Tire Pressure Monitoring System (TPMS) system monitors the pressure of the tire and when it drops below a certain pressure, the TPMS ECU makes the warning lamp turn on for notifying the driver. This system consists of TPMS ECU (or TPMS Receiver)and TPMS Sensors. Among components of TPMS system, the TPMS sensor is installed at each wheel rim. and its role is to measure the air pressure and the temperature of the tire and then it transmits its signals to TPMS ECU. The communication from TPMS sensors is done via Radio Frequency RF) at a frequency. The "Auto Learning" is a function where a new sensor's ID is automatically registered in the TPMS ECU. The vehicle should be driven at approx.20 km/h for about 10~20 minutes after replacing a sensor.

OBDII Code C1662 Hyundai - Auto Learning failure - AutoCodes.com — C1662 Hyundai Code - Auto Learning failure

What does this mean?

What are the Possible Causes of the DTC C1662 Hyundai?

Faulty TPMS Sensor

How to Fix the DTC C1662 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 C1662 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 C1662 Hyundai 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 C1662 Hyundai Code

1. What are the common symptoms of OBDII code C1662 Hyundai (Auto Learning failure)?

The common symptoms include rough idling, engine misfires, poor acceleration, and illuminated check engine light.

2. What causes the OBDII code C1662 Hyundai (Auto Learning failure)?

The code is typically triggered by a malfunction in the vehicle's electronic throttle control system, throttle body, or throttle position sensor.

3. How can I diagnose the OBDII code C1662 Hyundai (Auto Learning failure)?

Diagnosis involves using a professional OBDII scanner to retrieve the fault code and then inspecting the throttle body, throttle position sensor, and related wiring for any signs of damage or malfunction.

4. Can I drive my vehicle with the OBDII code C1662 Hyundai (Auto Learning failure) present?

It is not recommended to drive your vehicle with this code present, as it can lead to poor engine performance and potential safety hazards.

5. How can I repair the OBDII code C1662 Hyundai (Auto Learning failure)?

Repair may involve cleaning or replacing the throttle body, replacing the throttle position sensor, or repairing any damaged wiring in the electronic throttle control system.

6. Can a DIY enthusiast fix the OBDII code C1662 Hyundai (Auto Learning failure)?

While some simple repairs like cleaning the throttle body can be done by DIY enthusiasts, diagnosing and repairing electronic throttle control system issues may require professional help.

7. Are there any preventive measures to avoid OBDII code C1662 Hyundai (Auto Learning failure)?

Regular maintenance, such as cleaning the throttle body and ensuring proper engine tune-up, can help prevent issues that may trigger this code.

8. How long does it typically take to repair the OBDII code C1662 Hyundai (Auto Learning failure)?

The repair time can vary depending on the exact cause of the issue, but it may take anywhere from a few hours to a full day to diagnose and fix the problem.

9. Is the OBDII code C1662 Hyundai (Auto Learning failure) a common issue in Hyundai vehicles?

While not extremely common, this code can occur in Hyundai vehicles with electronic throttle control systems, especially in older models or those with high mileage.

10. Can resetting the OBDII code C1662 Hyundai (Auto Learning failure) using a scanner fix the issue permanently?

Simply resetting the code may temporarily clear the check engine light, but if the underlying issue is not addressed and repaired, the code is likely to reappear.