Operation - Section 32 02/10 OM3237 Page 32-24 Operator Cab and Controls INTERFACE MODULE Interface module (3, Figure 32-16) is located inside control cabinet (1, Figure 32-15). The interface mod- ule is attached inside door (2). FIGURE 32-15. CONTROL CABINET FIGURE 32-16. INTERFACE MODULE LOCATION 1. Control Cabinet 2. Door 1. Control Cabinet 2. Green LED Light 3. Interface Module (IM) 4. IM-Diag Connector (9-Pin) The Interface Module (IM) receives data from the sen- sors installed on the truck and sends this information to the VHMS controller. There is a small green LED light (2, Figure 32-16) on the face of the controller. With the key switch ON, the light will blink.
If the light is continuously illuminated, there is a problem in the controller. IM-diag connector (4) may also be located at the center, right-hand side of the door. When a new interface module controller is installed on the truck, new software must be installed inside the controller. IM-diag connector (4) is used to con- nect the interface module to a personal computer for installing software.