AutoCodes – Hyundai – P1523 Hyundai

P1523 Hyundai Code - Electronic Throttle Control System Malfunction Power Management

Quick Answer

The Electronic Throttle Control (ETC) system is made of the components throttle body, Throttle Position Sensor (TPS )1&2 and Accelerator Position Sensor(APS) 1&2. Common causes include Faulty Throttle Body, Carbon in throttle, Broken Throttle return spring. 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: P1523 Hyundai indicates Electronic Throttle Control System Malfunction Power Management.
Common causes: Common causes include Faulty Throttle Body, Carbon in throttle, Broken Throttle return spring.
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 8,416

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 27, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1523 Hyundai Description

The Electronic Throttle Control (ETC) system is made of the components throttle body, Throttle Position Sensor (TPS )1&2 and Accelerator Position Sensor(APS) 1&2. The throttle body contains the actuator, the throttle plate and the throttle position sensor (potentiometer), which are integrated in one housing. The actuator consists of a DC motor with a two-stage gear. The opening angle of the throttle valve is detected by the throttle position sensor which is mounted on the throttle body. And it provides feedback to the Powertrain Control Module (PCM) to control the throttle motor in order to control the throttle valve opening angle properly in response to the driving condition.

2006 Hyundai Sonata Electronic Throttle Control System

OBDII Code P1523 Hyundai - Electronic Throttle Control System Malfunction Power Management - AutoCodes.com — P1523 Hyundai Code - Electronic Throttle Control System Malfunction Power Management

What does this mean?

What are the Possible Causes of the DTC P1523 Hyundai?

Faulty Throttle Body
Carbon in throttle
Broken Throttle return spring
Throttle sticky
Throttle icy

How to Fix the DTC P1523 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 P1523 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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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.