AutoCodes – Generic – P2591

P2591 Code - Cruise Control Front Distance Range Sensor Left

Quick Answer

The Front Distance Range Sensor detects light reflected from a vehicle ahead by irradiating laser forward and calculates a distance from the vehicle ahead and a relative speed, based on the detected signal the Front Distance Range Sensor transmits the presence/absence of vehicle ahead and the distance from the vehicle to vehicle Cruise Control Unit. Common causes include Faulty Front Distance Range Sensor Left, Front Distance Range Sensor Left harness is open or shorted, Front Distance Range Sensor Left 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: P2591 indicates Cruise Control Front Distance Range Sensor Left.
Common causes: Common causes include Faulty Front Distance Range Sensor Left, Front Distance Range Sensor Left harness is open or shorted, Front Distance Range Sensor Left 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 3,749

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 Jan 19, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P2591 Description

The Front Distance Range Sensor detects light reflected from a vehicle ahead by irradiating laser forward and calculates a distance from the vehicle ahead and a relative speed, based on the detected signal the Front Distance Range Sensor transmits the presence/absence of vehicle ahead and the distance from the vehicle to vehicle Cruise Control Unit. When the vehicle's Cruise Control Unit loses communication with the Front Distance Range Sensor, the Cruise Control Unit request the Engine Control Module (ECM) to set the OBDII code.

OBDII Code P2591 - Cruise Control Front Distance Range Sensor Left - AutoCodes.com — P2591 Code - Cruise Control Front Distance Range Sensor Left

What does this mean?

What are the Possible Causes of the DTC P2591?

Faulty Front Distance Range Sensor Left
Front Distance Range Sensor Left harness is open or shorted
Front Distance Range Sensor Left circuit poor electrical connection

How to Fix the DTC P2591?

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 P2591 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.