A loss of power steering assist may occur on some 2015–2016 Colorado and Canyon models. A Service Power Steering message may be displayed on the Driver Information Center and data communication DTCs U0073 (Control Module Communication Bus Off), U0102 (Lost Communication with Transfer Case Control Module), U0109 (Lost Communication with Chassis Control Module) and/or U0140 (Lost Communication with Body Control Module) may be set.
Inspect the terminals for circuits 2500 and 2501 at the Transfer Case Control Module (TCCM) connector (Fig. 20) and X103 (chassis harness to power steering harness) (Fig. 21) and X106 (body harness to chassis harness) (Fig. 22) for oversized or bent terminals. Repair the connectors as needed.
Fig. 20
Fig. 21
Fig. 22
– Thanks to Ken Cole
