With Manufacturer's Scan Tool
Reading the DTCHDS
1. Make sure the ignition switch is OFF.
2. Connect the HDS to the DTC (A).
3. Turn the ignition switch ON (II).
4. Make sure the HDS communicates with the vehicle and the SRS unit. If it does not communicate, troubleshoot the DTC circuit:
5. Use the HDS to check for DTCs.
6. Read and record the DTC.
7. Turn the ignition switch OFF, and wait for 10 seconds.
8. Disconnect the HDS from the DTC.
9. Do the troubleshooting procedure for the DTC.