( TF09E17K791000R129XFAAT00 )
SRS DTC Troubleshooting: 12-9x
DTC 12-9x (‘‘x'' can be 0 thru 9 or A thru F):
Short to Ground in the Driver's Airbag First Inflator (RHD model)
NOTE:
  1. Turn the ignition switch to ON (II), then wait for 10 seconds.
Is DTC 12-9x 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. Measure the resistance between the No. 5 and the No. 6 terminals of SRS unit connector A (39P) and body ground. There should be less than 1.0 Ω.
Is the resistance as specified?
YES -
Go to Step 8 .
NO -
Faulty SRS unit; replace the SRS unit. ■
  1. Measure the resistance between the No. 5 and the No. 6 terminals of SRS unit connector A (39P) and body ground. There should be less than 1.0 Ω.
Is the resistance as specified?
YES -
Go to Step 10 .
NO -
Faulty driver's airbag; replace the driver's airbag. ■
  1. Remove the column cover , then disconnect the dashboard wire harness 4P connector (A) from the cable reel.
  1. Measure the resistance between the No. 5 and the No. 6 terminals of SRS unit connector A (39P) and body ground. There should be less than 1.0 Ω.
Is the resistance as specified?
YES -
Short to ground in the dashboard wire harness: replace the dashboard wire harness.■
NO -
Short to ground in the cable reel; replace the cable reel. ■