9. Clear the DTCs with the HDS.
10. Check for DTCs with the HDS.
Is DTC 21-8x indicated?
YES -
Go to step 11.
NO -
Short to power in the driver's seat belt tensioner; replace the driver's seat belt See: Restraints and Safety Systems/Seat Belt Systems/Seat
Belt/Service and Repair/Front Seat Belt Replacement, then clear the DTC.?
11. Turn the ignition switch to LOCK (0).
12. Disconnect the negative cable from the battery, then wait at least 3 minutes.
13. Disconnect SRS unit connector B (39P) from the SRS unit.
14. Disconnect the simulator lead from the floor wire harness.
15. Reconnect the negative cable to the battery.
16. Turn the ignition switch to ON (II).
17. Measure the voltage between body ground and SRS unit connector B (39P) terminals No. 12 and No. 13 individually. There should be less
than 0.2 V.
Is the voltage as specified?
YES -
Faulty SRS unit or poor connection at SRS unit connector B (39P) and the SRS unit. Check the connection; if the connection is OK, replace the
SRS unit See: Relays and Modules/Relays and Modules - Restraints and Safety Systems/Air Bag Control Module/Service and Repair/SRS Unit
Replacement.?
NO -
Short to power in the floor wire harness; replace the floor wire harness, then clear the DTC.?
21-9x
SRS DTC Troubleshooting: 21-9x
DTC 21-9x ("x" can be 0 thru 9 or A thru F):
Short to Ground in the Driver's Seat Belt Tensioner
Special Tools Required
- SRS Inflator Simulator 07SAZ-TB4011A
- SRS Simulator Lead K 070AZ-SNAA200
