Module Controlled Functions
The vehicle is equipped with a smart junction box (SJB) and a driver seat module.
Smart Junction Box (SJB)
The SJB is a combined fuse panel and microprocessor that controls the following systems
- Interior lighting
- Exterior lighting
- Horn
- Heated rear window
- Delayed accessory
- Power door locks (including smart locks, autolocking and luggage compartment lid release)
- Remote keyless entry (RKE)
- Perimeter anti-theft
- Battery saver relay
Driver Seat Module (DSM)
The DSM controls the user selected comfort functions. These functions are memory seat, memory mirrors and memory pedals. Up to 2 personal settings can be programmed into the DSM memory and when selected the DSM returns the user adjustable features to the programmed positions.
The SJB constantly monitors its subsystems for concerns. If a concern is found in one of the subsystems, the SJB records the concern in the form of a diagnostic trouble code (DTC).
The ignition switch position is very important to the SJB functionality. Erratic or unexpected SJB functions can often be traced to problems with these ignition SJB inputs.
The SJB controls a variety of systems
- battery saver relay
- heated rear window
- interior lighting
- exterior lighting
- remote keyless entry (RKE)
- delayed accessory
- power door locks (including SMART, autolocking and luggage compartment lid release)
- perimeter anti-theft
- horn
Possible Causes
- fuse(s)
- circuit 905 (GY/LB) open
- circuit 906 (RD/OG) open
- circuit 1203 (BK/LB) open
- circuit 1205 (BK) open
- circuit 1231 (RD/WH) open
- SJB
The DSM allows automatic positioning of the memory driver seat to programmable positions. For additional information, refer to DRIVER SEAT MODULE (DSM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX .
- fuse(s)
- circuit 566 (DG) open
- circuit 956 (OG/LG) open
- circuit 1203 (BK/LB) open
- circuit 1205 (BK) open
- DSM
SPECIAL TOOL(S) Heavy-Duty Riveter 501-D011 (D80L-23200-A)
