Engine-CodesChrysler – P0593 Chrysler

P0593 Chrysler Code - Speed Control Switch 2 Circuit High

Quick Answer

The P0593 Chrysler code indicates a problem with the Speed Control Switch 2 Circuit being too high. Common causes include Faulty speed control switch, Wiring or electrical connection issues related to the speed control circuit, Corrosion or damage to the speed control switch components. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0593 Chrysler indicates Speed Control Switch 2 Circuit High.
Common causes
Common causes include Faulty speed control switch, Wiring or electrical connection issues related to the speed control circuit, Corrosion or damage to the speed control switch components.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0593 Chrysler Description

The P0593 Chrysler code indicates a problem with the Speed Control Switch 2 Circuit being too high. This means that the speed control switch, which allows the driver to set and adjust the cruise control speed, is sending a signal that is higher than the expected range. This can lead to issues with the vehicle's cruise control system, causing it to malfunction or not operate at all. The speed control switch is an essential component for maintaining a constant speed while driving on highways or long stretches of road.

OBDII Code P0593 Chrysler - Speed Control Switch 2 Circuit High
P0593 Chrysler Code - Speed Control Switch 2 Circuit High

Common Causes of P0593 Chrysler

  1. Faulty speed control switch.
  2. Wiring or electrical connection issues related to the speed control circuit.
  3. Corrosion or damage to the speed control switch components.
  4. Electronic control module (ECM) malfunction.
  5. Software glitches in the vehicle's computer system.

Symptoms of P0593 Chrysler

  1. Cruise control not working properly or not engaging at all.
  2. Check Engine Light illuminated on the dashboard.
  3. Inability to set a specific speed using the cruise control system.
  4. Vehicle speed fluctuations while cruise control is activated.
  5. Poor fuel efficiency due to inconsistent speed control.

How to Fix P0593 Chrysler

  1. Begin by diagnosing the root cause of the issue using a diagnostic scanner to confirm the P0593 code.
  2. Inspect the speed control switch and its wiring for any visible damage or corrosion.
  3. Test the speed control switch using a multimeter to check for proper resistance and continuity.
  4. Replace the speed control switch if it is found to be faulty or out of specification.
  5. Clear the diagnostic trouble codes (DTCs) from the vehicle's computer system and test the cruise control functionality to ensure proper operation.

Cost to Fix P0593 Chrysler

The cost of repairing a P0593 Chrysler code can vary depending on the extent of the issue and the specific components that need to be replaced. On average, the repair cost for this type of problem can range from $100 to $300, including parts and labor. However, it's important to keep in mind that labor rates at auto repair shops can fluctuate, so it's recommended to inquire about local rates for a more accurate estimate.

Tech Notes for P0593 Chrysler

The steering wheel Clockspring is one of the most common problems for the P0593. The circuit inside the Clockspring failed causing an open circuit between the Speed Control Switch and the Powertrain Control Module (PCM).

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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.

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