AutoCodes – Generic – U023E

U023E Code - Lost Communication With Right Cruise Control Front Distance Range Sensor

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty Right Cruise Control Front Distance Range Sensor, Right Cruise Control Front Distance Range Sensor harness is open or shorted, Right Cruise Control Front Distance Range Sensor 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: U023E indicates Lost Communication With Right Cruise Control Front Distance Range Sensor.
Common causes: Common causes include Faulty Right Cruise Control Front Distance Range Sensor, Right Cruise Control Front Distance Range Sensor harness is open or shorted, Right Cruise Control Front Distance Range Sensor 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 1,677

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 Apr 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code U023E Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. CAN bus uses two dedicated wires for communication. The wires are called CAN high and CAN low. When the CAN bus is in idle mode, both lines carry 2.5V. When data bits are being transmitted, the CAN high line goes to 3.75V, and the CAN low drops to 1.25V, thereby generating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Right Cruise Control Front Distance Range Sensor has not been received.

OBDII Code U023E - Lost Communication With Right Cruise Control Front Distance Range Sensor - AutoCodes.com — U023E Code - Lost Communication With Right Cruise Control Front Distance Range Sensor

What does this mean?

What are the Possible Causes of the DTC U023E?

Faulty Right Cruise Control Front Distance Range Sensor
Right Cruise Control Front Distance Range Sensor harness is open or shorted
Right Cruise Control Front Distance Range Sensor circuit poor electrical connection

How to Fix the DTC U023E?

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 U023E 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.