AutoCodes – Jeep – P1593 Jeep

P1593 Jeep Code - Speed Control Switch 1/2 Stuck

Quick Answer

The Powertrain Control Module (PCM) detects that the Speed Control Switch signal voltage receive over the bus is no plausible. Common causes include Faulty Speed Control Switch, Speed Control Switch harness is open or shorted, Speed Control Switch 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: P1593 Jeep indicates Speed Control Switch 1/2 Stuck.
Common causes: Common causes include Faulty Speed Control Switch, Speed Control Switch harness is open or shorted, Speed Control Switch 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 17,466

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 May 20, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1593 Jeep Description

The Powertrain Control Module (PCM) detects that the Speed Control Switch signal voltage receive over the bus is no plausible.

OBDII Code P1593 Jeep - Speed Control Switch 1/2 Stuck - AutoCodes.com — P1593 Jeep Code - Speed Control Switch 1/2 Stuck

What does this mean?

What are the Possible Causes of the DTC P1593 Jeep?

Faulty Speed Control Switch
Speed Control Switch harness is open or shorted
Speed Control Switch circuit poor electrical connection

How to Fix the DTC P1593 Jeep?

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 P1593 Jeep 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.

Frequently Asked Questions about P1593 Jeep Code

What are common symptoms of OBDII code P1593 in a Jeep related to the Speed Control Switch 1/2 Stuck?

- Common symptoms include the cruise control not working, the cruise control light staying on, and the inability to set or maintain a constant speed.

What are some possible causes of OBDII code P1593 in a Jeep related to the Speed Control Switch 1/2 Stuck?

- Possible causes include a faulty speed control switch, a short circuit in the cruise control system, or a problem with the cruise control module.

How can I diagnose the issue causing OBDII code P1593 in my Jeep related to the Speed Control Switch 1/2 Stuck?

- You can diagnose the issue by checking the speed control switch for proper operation, inspecting the cruise control system for any visible damage or loose connections, and using an OBDII scanner to read the trouble code.

What are some potential repair tips for fixing OBDII code P1593 in a Jeep related to the Speed Control Switch 1/2 Stuck?

- Repair tips include replacing the speed control switch if it is faulty, checking and repairing any damaged wiring in the cruise control system, and resetting the trouble code after making necessary repairs.

Can I still drive my Jeep with OBDII code P1593 related to the Speed Control Switch 1/2 Stuck?

- It is generally safe to drive your Jeep with this code, but you may experience issues with the cruise control system. It is recommended to address the problem as soon as possible to prevent any further complications.

Do I need a professional mechanic to fix OBDII code P1593 in my Jeep related to the Speed Control Switch 1/2 Stuck?

- While it is possible to diagnose and repair this issue on your own if you have automotive repair experience, seeking help from a professional mechanic is recommended for a thorough diagnosis and proper repair.

Is OBDII code P1593 related to the Speed Control Switch 1/2 Stuck a common issue in Jeep vehicles?

- This code is not extremely common in Jeep vehicles, but it can occur due to various factors related to the cruise control system.

Are there any preventive measures I can take to avoid OBDII code P1593 related to the Speed Control Switch 1/2 Stuck in my Jeep?

- Regularly inspecting and maintaining the cruise control system, checking for any signs of wear or damage, and addressing any issues promptly can help prevent this code from appearing in your Jeep.