SRS DTC Troubleshooting: 28-9x
DTC 28-9x (‘‘x'' can be 0 thru 9 or A thru F):
Short to Ground in Right Side Seat Belt Buckle Tensioner
Special Tools Required

SRS inflator simulator
 07SAZ-TB4011A

SRS simulator lead K
 070AZ-SNA0200
NOTE: Before doing this troubleshooting procedure, review SRS Precautions and Procedures.
  1. Erase the DTC memory.
  1. Turn the ignition switch ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.
Does the SRS indicator stay on, and is DTC 28-9x indicated?
YES -
Go to Step 3 .
NO -
Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, go to the DTC Troubleshooting Index.
  1. Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes.
  1. Disconnect the floor wire harness 4P connector (A) from the right side seat belt buckle tensioner connector (B).
  1. Connect the SRS inflator simulator (2 Ω connectors) and simulator lead K to floor wire harness connector.
  1. Reconnect the negative cable to the battery.
  1. Erase the DTC memory.
  1. Read the DTC.
Is DTC 28-9x indicated?
YES -
Go to Step 9 .
NO -
Short to ground in the right side seat belt buckle tensioner; replace the right side seat belt buckle. ■
  1. Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes.
  1. Disconnect both seat belt tensioner 4P connectors and the left side seat belt buckle tensioner 4P connector.
  1. Disconnect SRS unit connector B (28P) from the SRS unit.
  1. Disconnect the simulator lead from the floor wire harness.