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

PINPOINT TEST H: THE DRIVER SEAT MODULE (DSM) DOES NOT RESPOND TO THE SCAN TOOL

Normal Operation
The driver seat module (DSM) communicates with the scan tool through the standard corporate protocol (SCP) communication network. Circuits 914 (TN/OG) (SCP +) and 915 (PK/LB) (SCP-) provide the network connection to the DSM. The DSM shares the SCP network with the lighting control module (LCM), the rear audio and temperature control (RATC) module (if equipped), the driver door module (DDM) (if equipped), the HVAC module and the instrument cluster (IC). Voltage for the DSM is provided by circuit 1524 (DB). Circuit 676 (PK/OG) provides ground.

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

H1-H2:

H2-H3:

H4: