Using the HDS (Preferred method)
Connect the HDS to the Data Link Connector (DLC).
NOTE:
There are two ways to read B-CAN codes with HDS.
First method; Go to TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A to check for DTCs.
Second method; Ground the SCS circuit with the HDS, then read the DTCs displayed in the multi-information display in the gauge control module assembly, then go to TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A .