( TF09E00K791000RA31XFAAT00 )
SRS DTC Troubleshooting: A3-1x
DTC A3-1x (‘‘x'' can be 0 thru 9 or A thru F):
SRS Unit Connector A Not Properly Installed
NOTE:
  1. Turn the ignition switch to ON (II), then wait for 10 seconds.
Is DTC A3-1x indicated?
YES -
Go to Step 4 .
NO -
Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.
Is the connection OK?
YES -
Go to Step 5 .
NO -
Repair the poor connection and retest.
  1. Turn the ignition switch to LOCK (0).
  1. Check for bent or damaged terminals on the SRS unit.
Are any terminals bent or damaged?
YES -
Replace the dashboard wire harness.■
NO -