Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP2023WAGONEER L BASE, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 55 (3.0L - DTCS U0418-00 TO U11E9-00)
2023 Jeep Wagoneer L Base, RWD
Section 55 (3.0L - DTCS U0418-00 To U11E9-00)
2023 Jeep Wagoneer L Base, RWDSECTION Section 55 (3.0L - DTCS U0418-00 To U11E9-00)
WARNING: This page is about a different car, the 2023 Jeep Grand Wagoneer L and 2023 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.
- DTC Troubleshooting
- U0418-00-Implausible Data Received From Brake System Control Module 1
- U041E-00-Invalid Data Received From All Wheel Drive Control Module
- U0421-00-Implausible Data Received From Suspension Control Module
- U0422-00-Implausible Data Received From Body Control Module-
- U0423-00-Implausible Data Received From Cluster/CCN
- U0424-00-Implausible Data Received From HVAC Control Module
- U042E-00-Invalid Data Received From Generator Control Module
- U0447-00-Implausible Data Received From Central Gateway
- U047F-00-Implausible Data Received From SEATBELT Sensor 1
- U0516-00-Invalid Data Received From Door Switch A
- U0536-00-Invalid Data Received From Lateral Acceleration Sensor Module
- U05AA-00-Invalid Data Received From Charge Air Cooler Coolant Pump
- U060F-00-Lost Communication With Mass Air Flow Sensor
- U0611-00-Lost Communication With Intake Air Temperature Sensor 1 -Bank 1
- U0623-00-Lost Communication With Coolant Pump "A"
- U0645-00-Lost Communication With Active Air Dam Module
- U0668-00-Lost Communication With Engine Oil Level Sensor Circuit
- U068B-00-Lost Communication With Turbocharger-Supercharger Inlet Pressure Sensor 1
- U0676-00-Lost Communication With Fuel Level Sensor A
- U113E-00-Lost Communication With Intelligent Battery Sensor
- U11BF-00-Lost Brake Pedal Position Message
- Notes
- Description And Operation-Braking Systems
- Component Functional Description - Brake Pedal Position Sensor
- Component Functional Description - Hydraulic Control Unit (HCU) Assembly
- Component Functional Description-Brake Pedal Simulator Pressure Sensor
- Component Functional Description - Wheel Speed Sensors
- Component Functional Description - Steering Angle Sensor
- Component Functional Description - Brake System Control Module (BSCM)
- Technical Data-Braking System Messages
- When Monitored
- Set Condition
- Default Action
- Possible Causes
- Diagnostic Overview
- Check For An Active Or Intermittent Condition
- Diagnostic Test-EBOOSTER Brake System - Pcm
- U11E9-00-Lost Communication With AGS
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.