Lighting and Horns: Testing and Inspection

INTEGRATED CONTROL UNIT / INPUT TEST

CAUTION:
All SRS wire harnesses are covered with yellow insulation. Before you disconnect any part of an SRS wire harness, disconnect the airbag connectors.

Whenever the ignition switch is ON, or has been turned OFF for less than three minutes, be careful not to bump the SRS unit; the airbags could accidentally deploy and cause damage or injuries.

For additional precautions, refer to the SRS section Service Precautions.

Remove the dashboard lower cover and knee bolster, then disconnect the 15-P connector from the integrated control unit.

Remove the integrated control unit from the under-dash fuse/relay box.

Inspect the connector and socket terminals to be sure they are all making good contact.
* If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
* If the terminals look OK, make the following input tests at the connector and under-dash fuse/relay box.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the control unit must be faulty; replace it.

NOTE:
* Different wires with the same color have been given a number suffix to distinguish them (for example, GRN/BLU1 and GRN/BLU2 are not the same).
* Do not disconnect any connectors on the under-dash fuse/relay box except the integrated control unit.