Test F: The Occupant Classification Sensor (OCS) Module Does Not Communicate With The Scan Tool

PINPOINT TEST F: THE OCCUPANT CLASSIFICATION SENSOR (OCS) MODULE DOES NOT COMMUNICATE WITH THE SCAN TOOL

Normal Operation
The occupant classification sensor (OCS) module communicates with the scan tool through the medium speed controller area network (MS-CAN). Circuits VDB06 (GY/OG) (MS-CAN +) and VDB07 (VT/OG) (MS-CAN -) provide the network connection to the OCS module. The OCS module shares the MS-CAN network with the smart junction box (SJB), the driver seat module (DSM), the electronic automatic temperature control (EATC) module, the digital versatile disc (DVD) player, the satellite radio receiver, and the instrument cluster. Voltage for the OCS module is provided by circuit CBP46 (WH/BU). Circuit GD133 (BK) provides ground.

This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- OCS module

F1-F2:

F3-F4: