LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 74 (3.2L - DTCS U0103 To U1504) >> DTC Troubleshooting >> U0299-Lost Communication With Dc To Dc Converter Control Module - >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
FUSED RUN/START RELAY OUTPUT CIRCUIT OPEN OR SHORTED TO GROUND
FUSED B+ CIRCUIT OPEN
GROUND CIRCUIT OPEN
LIN BUS CIRCUIT OPEN
VOLTAGE STABILITY MODULE
BODY CONTROL MODULE (BCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .