Odyssey V6-3.5L (2003)
Data Link Connector: Testing and Inspection
DLC Circuit Troubleshooting
If the PGM does not communicate with the OBD II scan tool, Honda PGM Tester, or I/M test equipment, do this troubleshooting procedure.
1. Turn the ignition switch ON (II).
2. Measure voltage between data link connector (DLC) terminal No.16 and body ground.
Is there battery voltage?
YES - Go to step 3.
NO - Repair open in the wire between DLC terminal No.16 and the ACG S (15 A) fuse in the under-hood fuse/relay box.
3. Measure voltage between DLC terminal No.4 and No.16.
Is there battery voltage?
YES - Go to step 4.
NO - Repair open in the wire between DLC terminal No.4 and body ground.
4. Measure voltage between DLC terminals No.5 and No.16.
Is there battery voltage?
YES - Go to step 5.