Pinpoint Test O: The DSM Does Not Respond To The Scan Tool

Communications Network

Pinpoint Test O: The Driver Seat Module (DSM) Does Not Respond To The Scan Tool

Refer to Wiring Diagrams Set 14, Module Communications Network for schematic and connector information. Diagrams By Number

Refer to Wiring Diagrams Set 123, Memory Seats for schematic and connector information. Diagrams By Number

Normal Operation

The Driver Seat Module (DSM) 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 DSM. Voltage for the DSM is provided by circuits CBX03 (BU/RD) and CBX05 (VT/RD). Circuits GD905 (BK/GN) and GD906 (BK/GY) provide ground.

This pinpoint test is intended to diagnose the following:

- Fuse
- Wiring, terminals or connectors
- DSM

PINPOINT TEST O: THE DSM DOES NOT RESPOND TO THE SCAN TOOL

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.

O1-O2:

O2-O3:

O3-O4: