Civic L4-1.8L (2006)
Data Link Connector: Testing and Inspection
DLC Circuit Troubleshooting
NOTE: Make sure the HDS and the DLC cable of the HDS is normal.
1. Turn the ignition switch OFF.
2. Connect the HDS to the DLC.
NOTE: Make sure the HDS is properly connected to the DLC.
3. Turn the ignition switch ON (II), and read the HDS.
Does the HDS identify the vehicle?
Yes - Go to step 4.
NO - Go to step 19.
4. Check for Temporary DTCs or DTCs in the PGM-FI system with the HDS.
Are any Temporary DTCs or DTCs indicated?
Yes - Go to the indicated DTC's troubleshooting.
NO - Go to step 5.
5. Turn the ignition switch OFF.
6. Turn the ignition switch ON (II), and watch the SRS indicator.
Does the SRS indicator stay on?
Yes - Go to the SRS system's general troubleshooting information.
NO - Go to step 7.
7. Turn the ignition switch OFF.
8. Turn the ignition switch ON (II), and watch the ABS indicator.
Does the ABS indicator stay on?
Yes - Go to the ABS system's general troubleshooting information.
NO - Go to step 9.
9. Turn the ignition switch OFF.
10. Turn the ignition switch ON (II), and watch the immobilizer indicator.
Does the immobilizer indicator stay on or flash?
Yes - Go to the immobilizer system's troubleshooting.
NO - Go to step 11.
11. Do the gauge self-diagnostic function.
12. Check for B-CAN system DTCs without the HDS.
Are any B-CAN DTCs indicated?
Yes - Go to the indicated DTC's troubleshooting.
NO - Go to step 13.
13. Turn the ignition switch OFF.
14. Disconnect the HDS from the DLC.
