AutoCodes – Buick – P1559 Buick

P1559 Buick Code - Cruise Control Power Management Mode

Quick Answer

P1559 Buick indicates Cruise Control Power Management Mode. Common causes include Faulty Cruise Control Servo, Cruise Control Servo harness is open or shorted, Cruise Control Servo circuit poor electrical connection. 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: P1559 Buick indicates Cruise Control Power Management Mode.
Common causes: Common causes include Faulty Cruise Control Servo, Cruise Control Servo harness is open or shorted, Cruise Control Servo circuit poor electrical connection.
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.

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Code Popularity 2,738

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 30, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1559 Buick Description

OBDII Code P1559 Buick - Cruise Control Power Management Mode - AutoCodes.com — P1559 Buick Code - Cruise Control Power Management Mode

What does this mean?

What are the Possible Causes of the DTC P1559 Buick?

Faulty Cruise Control Servo
Cruise Control Servo harness is open or shorted
Cruise Control Servo circuit poor electrical connection

How to Fix the DTC P1559 Buick?

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 P1559 Buick 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.

Need more information about the P1559 Buick code?

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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.