Acura 3.5 RL Manual page 1411

Troubleshooting - '99 - 01 Models
Reading the DTC
When the SRS indicator light is on, read the DTC using one of these methods:
Reading With the PGM Tester
Connect the Honda PGM Tester to the 16P Data Link Connector (DLC), and follow the tester's prompts. If the tester indi-
cates no DTC, DTC 9-1 or DTC 9-2, double-check by jumping the service check connector and watching the SRS indicator
light (see next page).
DATA LINK CONNECTOR (16P)
HONDA PGM TESTER