Component Tests and General Diagnostics

To inspect and service the SRS after a collision (whether or not the air bags have deployed), perform the following steps.

SRS Air Bag Control Unit SRS-ECU MEMORY CHECK
1. Connect the scan tool to the data link connector (16-pin).

CAUTION: Turn off ignition switch before connecting or disconnecting scan tool.

2. Read (and write down) all displayed diagnostic trouble codes. Testing and Inspection.

NOTE: If the battery power supply has been disconnected or disrupted by the collision, the scan tool cannot communicate with the SRS-ECU. Check the battery, then inspect and, if necessary, repair the dash wiring harness before proceeding.

3. Read the data list (fault duration and how many times memories are erased) using the scan tool.

NOTE
- Maximum stored period: 9999 minutes (approximately 7 days)
- Maximum number of times to be stored: 250

4. Erase the diagnostic trouble codes and after waiting 5 seconds or more read (and write down) all displayed diagnostic trouble codes.