Express 3500 V8-6.6L DSL Turbo (2008)
One light blue/white wire (circuit 6311) (2)
One dark blue wire (circuit 47) (3).
One red/white wire (circuit 3940) (4)
The chart listed below updates the information found on page 4-42 in the owners manual regarding the four-wire harness (without connector).
Wire Color: Black / Description: Ground / Circuit: 350
Wire Color: Light Blue/White / Description: CHMSL/Stop Lamp Supply Voltage / Circuit: 6311
Wire Color: Dark Blue / Trailer Feed Auxiliary Circuit / Circuit: 47
Wire Color: Red/White/Description: Battery Feed / Circuit: 3940
Bundle the four wires up together and secure with tape (1) to the left side of the main harness.
Reposition the left front floor carpet or rubber mat back down into position.
Install the radio. Refer to Radio Replacement in SI.
Install the IP cluster trim plate bezel. Refer to Instrument Panel Cluster Trim Plate Bezel Replacement in SI.
Install the left side knee bolster bracket. Refer to Driver Knee Bolster Bracket Replacement in SI.
Install the IP lower center extension panel and compartment door. Refer to Instrument Panel Lower Extension Replacement in SI.
Install the left side knee bolster panel. Refer to Driver Knee Bolster Replacement in SI.
Install the BCM to the bracket and IP carrier. Refer to Body Control Module Replacement in SI.
Install the right side knee bolster panel. Refer to Passenger Knee Bolster Replacement in SI.
Reposition the left front floor carpet back down into position.
Install the BBEC and top fuse block cover. Refer to Body Wiring Harness Junction Block Replacement in SI.
Install the left front seat assembly. Refer to Driver and Passenger Seat Replacement in SI.
Install the left front sill plate. Refer to Front Side Door Step Mat Replacement in SI.
Install the left front hinge panel. Refer to Body Hinge Pillar Trim Panel Replacement in SI.
Install the left front floor mat.
\Enable the SIR system. Refer to SIR Disabling and Enabling in SI.
Connect negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in SI. If the vehicle is equipped with the auxiliary battery