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Home >> Jeep >> 2019 >> Grand Cherokee Laredo, AWD, Full Time T/Case Control >> Repair and Diagnosis >> External Pages >> Different car >> Section 420 (Air Suspension Control Module (ASCM) - DTCS C15B6-13 To U102B-00) >> DTC Troubleshooting >> U0422-00-Implausible Data Received From Body Control Module
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U0422-00-Implausible Data Received From Body Control Module

WARNING: This page is about a different car, the 2021 Jeep Grand Cherokee L. However, it is still accessible from the selected car via links, so may be relevant.

The COMMUNICATION DIAGNOSTIC PROCEDURE MUST  be performed before replacing any component(s) or module(s). Perform the COMMUNICATION DIAGNOSTIC PROCEDURE. Refer to COMMUNICATION DIAGNOSTIC PROCEDURE .

The Air Suspension Control Module (ASCM) will set this DTC if the Body Control Module (BCM) sends an invalid CAN message or SNA (signal not available) for any of the following:

CAN Message  Description 
BCM_FD_2.OperationalModeSts Operational Mode Status
BCM_FD_3.Battery_Volt_1 Battery Voltage
BCM_FD_9.ExternalTemperature External Temperature
BCM_FD_9.PowerModeSts Power Mode Status
BCM_FD_10.CmdIgnSts Ignition Status
BCM_FD_12.AirSusp_DnSw Air Suspension Down Switch Status
BCM_FD_12.AirSusp_UpSw Air Suspension Up Switch Status
BCM_FD_26.ADS_MODE_REQ Active Damping Mode Status
ORC_FD_3.LatAcceleration Lateral Acceleration
ORC_FD_3.LongAcceleration Longitudinal Acceleration
ORC_FD_3.YawRate Yaw Rate
VIN.VIN_MSG VIN

Refer to DIAGNOSIS AND TESTING .

to diagnose the CAN network and BCM.