( TF09E10K791000R121XFAAT00 )
SRS DTC Troubleshooting: 12-1x, 12-2x
DTC 12-1x (‘‘x'' can be 0 thru 9 or A thru F):
Open in the Front Passenger's Airbag Inflator (LHD model)
DTC 12-2x (‘‘x'' can be 0 thru 9 or A thru F):
Increased Resistance in the Front Passenger's Airbag Inflator (LHD model)
NOTE:
  1. Turn the ignition switch to ON (II), then wait for 10 seconds.
Is DTC 12-1x or 12-2x 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.
  1. Turn the ignition switch to LOCK (0).
  1. Install a jumper wire between the No. 2 and the No. 3 terminals of the dashboard wire harness 4P connector.
  1. Turn the ignition switch to ON (II), then wait for 10 seconds.
Is DTC 12-1x or 12-2x indicated?
YES -
Go to Step 12 .
NO -
Faulty front passenger's airbag; replace the front passenger's airbag. ■
  1. Turn the ignition switch to LOCK (0).
  1. Remove a jumper wire from the dashboard wire harness 4P connector.
  1. Install a jumper wire between the No. 5 and the No. 6 terminals of SRS unit connector A (39P).
  1. Check for continuity between the No. 2 and the No. 3 terminals of the dashboard wire harness 4P connector.
Is there continuity?
YES -
Faulty SRS unit or poor connection at SRS unit connector A (39P) and the SRS unit. Check the connection between the connector and the SRS unit. If the connection is OK, replace the SRS unit. ■
NO -
Open or increased resistance in the dashboard wire harness; replace the dashboard wire harness.■