LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Dodge and Ram >> 2009 >> Journey R/T, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 68 (Final Drive Control Module (FDCM) - Electrical Diagnostics) >> DTC Troubleshooting >> U0431-Implausible Data Received From FCM >> Diagnostic Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Test

WARNING: This page is about a different car, the 2009 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
  1. FRONT CONTROL MODULE DTCS PRESENT 
    1. Ignition on, engine not running.
    2. With the scan tool, read DTCs in the Front Control Module.

      Are there any DTCs present?

      Yes 

      No