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

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

G1-G2:

G3-G4:

Normal Operation
The DSM communicates with the scan tool through the universal asynchronous receiver-transmitter (UART)-based protocol (UBP) network. Circuit 2077 (PK/LB) provides the network connection to the DSM. The DSM shares the UBP network with the driver climate controlled seat module, the passenger climate controlled seat module and the electronic automatic temperature control (EATC) module. Voltage for the DSM is provided by circuit 1567 (RD/LB). Circuit 1203 (BK/LB) provides ground.

Possible Causes
- Fuse
- Circuit 1203 (BK/LB) open
- Circuit 1567 (RD/LB) open
- Circuit 2077 (PK/LB) open
- DSM