Body Control Modules - Old Style: Removal & Installation GMC Yukon Denali

Removal & Installation

Remove lower instrument panel trim from below steering column. Remove 2 Transfer Case Control Module (TCCM) retaining screws. Disconnect TCCM electrical connector. Remove TCCM. To install, reverse removal procedure.

1. Disconnect negative battery cable. Remove seat pedestal trim covers on one front seat. Remove seat-to-floor retaining bolts. Disconnect electrical connector(s) as necessary. Remove seat from vehicle. Remove console trim plate retaining screws. Lift upward on rear of console trim plate and slide rearward. Disconnect electrical connectors as necessary. Remove console trim plate.
2. Remove 4 console-to-floor retaining bolts. Disconnect instrument panel harness and cross-body harness connectors from console. Slide console rearward and remove from vehicle. Remove amplifier mounting screws. Disconnect amplifier electrical connector. Remove amplifier through bottom of console. Release retaining tabs on BCM. Remove BCM. To install, slide BCM into console and snap tabs into place. To complete installation, reverse removal procedure.

See appropriate ANTI-LOCK article in BRAKES.

See appropriate AIR BAG RESTRAINT SYSTEMS article.

See appropriate ANALOG INSTRUMENT PANELS article.

See appropriate REMOVAL, OVERHAUL & INSTALLATION article in ENGINE PERFORMANCE.

Body Control Module (BCM) Wiring Diagram (Escalade, Tahoe & Yukon Denali). Scheme 12