April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Test

VERIFY DTC IS ACTIVE
1. Turn the ignition on.
2. With the scan tool, read active DTCs.
  Is this DTC active?
  
  Yes
  - Refer to 2.4L - DIAGNOSTIC CODE INDEX or 3.6L - DIAGNOSTIC CODE INDEX and perform the U0146-Lost Communication with Central Gateway diagnostic procedure.
  No
  - Refer to DIAGNOSIS AND TESTING , and perform the Stored Lost Communication DTCs diagnostic procedure.