How to Fix Electronic Throttle Control in Chrysler 300: Ultimate Guide

How to Fix Electronic Throttle Control Chrysler 300

If you own a Chrysler 300, you may have encountered issues with the electronic throttle control system. This system is responsible for regulating the amount of air flowing into the engine, which in turn controls the engine’s RPM and acceleration. When the electronic throttle control (ETC) fails, it can lead to a loss of power and various other performance problems. In this article, we will explore common issues related to the ETC in a Chrysler 300 and provide some steps to help you fix them.

Common Symptoms of Electronic Throttle Control Issues

Before attempting any fixes, it is crucial to identify if your Chrysler 300 is experiencing problems related to the electronic throttle control system. Here are some common symptoms that may indicate ETC issues:

  • Engine stalling or stumbles upon acceleration.
  • Reduced power and sluggishness.
  • Check Engine Light (CEL) or Electronic Throttle Control (ETC) warning light illuminated on the dashboard.
  • Inability to maintain a constant speed.
  • Sudden loss of throttle response.
  • Idle surging or high idle.

If you notice any of these signs, it is essential to take action to prevent further damage to your vehicle.

Steps to Fix Electronic Throttle Control Issues

Fixing electronic throttle control issues in a Chrysler 300 requires a systematic approach. Follow the steps below to troubleshoot and resolve the problem:

Step 1: Perform A Throttle Body Cleaning

A dirty throttle body can lead to sticky throttle movements and cause ETC problems. To clean the throttle body:

  1. Disconnect the negative terminal of the battery to avoid any electrical mishaps.
  2. Locate the throttle body, usually found between the air intake hose and the intake manifold.
  3. Remove the air intake hose using a screwdriver or a designated clamp tool.
  4. Spray throttle cleaner onto a clean cloth and wipe the throttle body’s interior surfaces.
  5. Use a toothbrush or soft-bristled brush to remove any built-up carbon deposits.
  6. Reinstall the air intake hose and reconnect the negative battery terminal.

Cleaning the throttle body can help restore proper airflow and may resolve ETC issues caused by dirt or carbon buildup.

Step 2: Inspect The Wiring And Connectors

Faulty wiring or loose connectors can disrupt the electronic throttle control system’s proper functioning. Follow these steps to inspect the wiring and connectors:

  1. Disconnect the negative battery terminal for safety.
  2. Inspect the wiring harness connecting to the throttle body for any signs of damage, such as frayed wires or loose connections. If anything looks suspicious, repair or replace the affected wiring.
  3. Check the connectors for corrosion or dirt buildup. Use a contact cleaner and a brush to clean the connectors thoroughly.
  4. Reconnect the wiring and connectors securely.
  5. Reconnect the negative battery terminal.

By ensuring proper wiring and connectors, you can eliminate potential electrical issues that may cause ETC malfunctions.

Step 3: Resetting The Throttle Control System

Performing a throttle control system reset can help recalibrate the ETC module and resolve minor glitches. Here’s how to do it:

  1. Turn the ignition switch to the “ON” position, without starting the engine.
  2. Press the gas pedal to the floor and release it five times in quick succession.
  3. Turn off the ignition and wait for about 30 seconds.
  4. Start the engine and let it idle for a few minutes.

Resetting the throttle control system may help in resolving issues related to throttle response and idle performance.

Consult a Professional

If the above steps do not resolve the electronic throttle control issues in your Chrysler 300, it is recommended to seek professional assistance from a qualified mechanic or visit your nearest Chrysler dealership. They have specialized diagnostic equipment and expertise to identify and rectify complex ETC problems.

Remember, timely maintenance and regular inspections can go a long way in preventing ETC issues and ensuring optimal performance of your Chrysler 300.

Frequently Asked Questions Of How To Fix Electronic Throttle Control In Chrysler 300: Ultimate Guide

How Do I Know If My Chrysler 300 Has A Problem With Electronic Throttle Control?

If your Chrysler 300 experiences sudden loss of power, unresponsive acceleration, or a lit-up warning light, it may indicate an issue with the electronic throttle control system.

Why Does The Electronic Throttle Control Warning Light Come On In My Chrysler 300?

The electronic throttle control warning light can come on in your Chrysler 300 if there is a malfunction or fault in the throttle control system, indicating a need for inspection and potential repair.

Can I Still Drive My Chrysler 300 With The Electronic Throttle Control Light On?

While it is possible to drive your Chrysler 300 with the electronic throttle control light on, it is not recommended. It is advised to have the issue diagnosed and repaired by a qualified technician to avoid potential safety risks.

How Can I Fix The Electronic Throttle Control Problem In My Chrysler 300?

To fix the electronic throttle control problem in your Chrysler 300, you can try resetting the throttle control module or performing a throttle body cleaning. However, it is recommended to consult a professional for proper diagnosis and repair if the issue persists.


The electronic throttle control system is a critical component of any modern vehicle, including the Chrysler 300. If you experience any symptoms related to ETC problems, don’t ignore them. Follow the steps discussed in this article to fix electronic throttle control issues in your Chrysler 300. However, if you’re uncertain or unable to resolve the problem on your own, it’s always best to consult a professional technician for a thorough diagnosis and repair.

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