Engine-CodesCadillac – P1558 Cadillac

P1558 Cadillac Code - Cruise Control Servo Indicates Low

Quick Answer

The diagnostic trouble code P1558 for Cadillac vehicles refers to an issue with the cruise control servo indicating low voltage. Common causes include Faulty cruise control servo, Wiring issues in the cruise control system, Malfunctioning cruise control module. 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
P1558 Cadillac indicates Cruise Control Servo Indicates Low.
Common causes
Common causes include Faulty cruise control servo, Wiring issues in the cruise control system, Malfunctioning cruise control module.
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 10, 2024
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Code P1558 Cadillac Description

The diagnostic trouble code P1558 for Cadillac vehicles refers to an issue with the cruise control servo indicating low voltage. The cruise control system in a vehicle is responsible for maintaining a constant speed without the driver having to keep their foot on the accelerator. The servo is a crucial component of the cruise control system that helps regulate the speed of the vehicle. When the cruise control servo indicates low voltage, it means that there is a problem with the electrical signal being sent to the servo, leading to potential issues with the cruise control system's functionality.

OBDII Code P1558 Cadillac - Cruise Control Servo Indicates Low
P1558 Cadillac Code - Cruise Control Servo Indicates Low

Common Causes of P1558 Cadillac

  1. Faulty cruise control servo
  2. Wiring issues in the cruise control system
  3. Malfunctioning cruise control module
  4. Electrical system problems
  5. Corrosion or damage to cruise control components

Symptoms of P1558 Cadillac

  1. Inoperative cruise control system
  2. Difficulty setting or maintaining a constant speed
  3. Illumination of the cruise control warning light on the dashboard
  4. Fluctuating speed while using cruise control

How to Fix P1558 Cadillac

  1. Diagnose the issue using a diagnostic scanner to retrieve the trouble codes and pinpoint the problem area.
  2. Inspect the wiring and connections in the cruise control system for any damage or corrosion.
  3. Test the cruise control servo and module for proper functionality or replace if necessary.
  4. Clear the trouble codes and reset the system to ensure proper operation.
  5. Test drive the vehicle to verify that the cruise control system is functioning correctly after repairs.

Cost to Fix P1558 Cadillac

The typical repair costs for addressing a cruise control servo indicating low voltage (P1558) can vary depending on the specific cause of the issue and the cost of parts and labor. In general, the cost of parts for this repair can range from $100 to $300, while labor costs can range from $100 to $200, assuming a standard hourly rate of $80 to $150. Additional diagnostic time may be required to pinpoint the exact cause of the problem, which could incur extra costs. It is advisable to consult with a qualified mechanic or dealership to obtain a more precise estimate based on the specific make and model of the 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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