( TF09E17K791000R124XFAAT00 )
SRS DTC Troubleshooting: 12-4x, 12-5x
DTC 12-4x (‘‘x'' can be 0 thru 9 or A thru F):
Open in the Driver's Airbag Second Inflator (RHD model)
DTC 12-5x (‘‘x'' can be 0, 2 thru 9 or A thru F):
Increased Resistance in the Driver's Airbag Second Inflator (RHD model)
NOTE:
  1. Turn the ignition switch to ON (II), then wait for 10 seconds.
Is DTC 12-4x or 12-5x 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. Disconnect the negative cable from the battery, then wait at least 3 minutes.
  1. Install a jumper wire between the No. 1 and the No. 2 terminals of the cable reel 4P connector.
  1. Reconnect the negative cable to the battery.
Is DTC 12-4x or 12-5x indicated?
YES -
Go to Step 10 .
NO -
Faulty driver's airbag; replace the driver's airbag. ■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the negative cable from the battery, then wait at least 3 minutes.
  1. Remove the column cover, then disconnect the dashboard wire harness 4P connector (A) from the cable reel.
  1. Install a jumper wire between the No. 1 and No. 2 terminals of dashboard wire harness 4P connector.
  1. Reconnect the negative cable to the battery.
Is DTC 12-4x or 12-5x indicated?
YES -
Go to Step 16 .
NO -
Open in the cable reel; replace the cable reel. ■
  1. Turn the ignition switch to LOCK (0).
  1. Remove the jumper wire from the dashboard wire harness 4P connector.
  1. Disconnect the negative cable from the battery, then wait at least 3 minutes.
  1. Install a jumper wire between the No. 9 and the No. 10 terminals of SRS unit connector A (39P).
  1. Check for continuity between the No. 1 and the No. 2 terminals of dashboard wire harness 4P connector.
Is the 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 in the dashboard wire harness; replace the dashboard wire harness.■