Engine-CodesChrysler – P1596 Chrysler

P1596 Chrysler Code - Speed Control Switch Always High

Quick Answer

The P1596 Chrysler diagnostic trouble code (DTC) indicates that the speed control switch signal is always high. Common causes include Faulty speed control switch, Wiring or electrical connection issues in the speed control circuit, Defective ECM. 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
P1596 Chrysler indicates Speed Control Switch Always High.
Common causes
Common causes include Faulty speed control switch, Wiring or electrical connection issues in the speed control circuit, Defective ECM.
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 Sep 07, 2024
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Code P1596 Chrysler Description

The P1596 Chrysler diagnostic trouble code (DTC) indicates that the speed control switch signal is always high. This means that the signal from the speed control switch, also known as the cruise control switch, is constantly registering as in the ON or activated position, even when the switch is not physically engaged. This can lead to issues with the vehicle's speed control system as the switch is not functioning as intended.

OBDII Code P1596 Chrysler - Speed Control Switch Always High
P1596 Chrysler Code - Speed Control Switch Always High

Common Causes of P1596 Chrysler

  1. Faulty speed control switch.
  2. Wiring or electrical connection issues in the speed control circuit.
  3. Defective ECM.
  4. Corrosion or damage to the speed control switch connector.
  5. Software issues with the ECM related to the speed control system.

Symptoms of P1596 Chrysler

  1. Inability to engage or disengage the cruise control system.
  2. Cruise control system engaging unexpectedly or intermittently.
  3. Speed control switch not responding to driver input.
  4. Malfunction indicator light (MIL) or check engine light illuminated on the dashboard.

How to Fix P1596 Chrysler

  1. Begin by diagnosing the issue using a scan tool to confirm the presence of the P1596 code.
  2. Inspect the speed control switch and its wiring for any visible damage or corrosion. Replace the switch if necessary.
  3. Check the electrical connections in the speed control circuit for proper connectivity and repair any loose or damaged connections.
  4. If the issue persists, test the ECM for faults related to the speed control system and replace if necessary.
  5. Clear the DTC from the ECM memory and test the cruise control system to ensure proper functionality.

Cost to Fix P1596 Chrysler

The typical repair costs for addressing a P1596 Chrysler code can vary depending on the specific cause of the issue. In general, replacing a faulty speed control switch may cost between $50 and $150 for the part, with additional labor costs ranging from $80 to $150 per hour. If the issue is related to wiring or ECM faults, the repair costs may increase accordingly. It's advisable to consult with a qualified mechanic or auto repair shop for an accurate estimate based on the specific circumstances of your vehicle.

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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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