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Home >> Jeep >> 2018 >> Grand Cherokee Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (3.0L Diesel - DTCS P24F3-00 To U3017-00) >> DTC Troubleshooting >> U0140-00-Lost Communication With Body Control Module >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) 

NOTE:

For vehicle communication problems, use the scan tool to refer to the Network Review Screen. The screen depicts a high level view of the vehicle network. Fault and problem areas appear in red. Selecting any of the network components allows access to the source of the problem.

  1. Turn the ignition on.
  2. With the scan tool, read the active DTCs.

    Does the scan tool display; U0140-LOST COMMUNICATION WITH BODY CONTROL MODULE as active?

    Yes 

    • Refer to  DIAGNOSIS AND TESTING  and perform the NO RESPONSE FROM BCM (BODY CONTROL MODULE) diagnostic procedure.

    No