AutoCodes – Generic – U2018

U2018 Code - Passenger Side Crash Sensor Communication Fault

Quick Answer

The Restraints Control Module (RCM) checks the Passenger Side Impact Sensor circuits for faults. Common causes include Faulty Passenger Side Impact Sensor, Passenger Side Impact Sensor harness is open or shorted, Passenger Side Impact 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: U2018 indicates Passenger Side Crash Sensor Communication Fault.
Common causes: Common causes include Faulty Passenger Side Impact Sensor, Passenger Side Impact Sensor harness is open or shorted, Passenger Side Impact 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 13,519

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 Oct 26, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code U2018 Description

The Restraints Control Module (RCM) checks the Passenger Side Impact Sensor circuits for faults. If the RCM detects one of the following faults on the Passenger Side Impact Sensor circuits, it will store Diagnostic Trouble Code (DTC) U2018 in memory and illuminate the air bag indicator.

OBDII Code U2018 - Passenger Side Crash Sensor Communication Fault - AutoCodes.com — U2018 Code - Passenger Side Crash Sensor Communication Fault

What does this mean?

What are the Possible Causes of the DTC U2018?

Faulty Passenger Side Impact Sensor
Passenger Side Impact Sensor harness is open or shorted
Passenger Side Impact Sensor circuit poor electrical connection
Faulty Restraints Control Module (RCM)

How to Fix the DTC U2018?

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 U2018 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 U2018 code?

Need more information on how to fix the U2018 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U2018 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U2018 Ford — Passenger Side Crash Sensor Communication Fault
U2018 Lincoln — Passenger Side Crash Sensor Communication Fault

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.