Is the resistance 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 -
Open or increased resistance in the floor wire harness; replace the floor wire harness, then clear the DTC.?
SWS
SWS DTC Troubleshooting: 21-1x
DTC 21-1x ("x" can be 0 thru 9 or A thru F):
Faulty Outer Side Front Passenger's Weight Sensor Circuit
NOTE: Only read DTCs from the SRS menu, not from SWS menus unless instructed to check SWS DTCs. SWS (ODS unit) DTCs are subcodes of
SRS unit DTCs. Only troubleshoot the corresponding SRS DTCs. Also these SWS DTCs are cleared by turning the ignition switch to LOCK(0).
Do the troubleshooting for SRS unit DTC 83-21 See: 83-21.
21-2x
SRS DTC Troubleshooting: 21-1x, 21-2x
DTC 21-1x ("x" can be 0 thru 9 or A thru F):
Open in the Driver's Seat Belt Tensioner
DTC 21-2x ("x" can be 0 thru 9 or A thru F):
Increased Resistance in the Driver's Seat Belt Tensioner
Special Tools Required
- SRS Inflator Simulator 07SAZ-TB4011A
- SRS Simulator Lead K 070AZ-SNAA200
- SRS Short Canceller 070AZ-SAA0100
NOTE:
- Before doing this troubleshooting procedure, review SRS Precautions and Procedures See: Body and Frame/Air Bag(s) Arming and
Disarming/Service and Repair, General Troubleshooting Information See: Restraints and Safety Systems/Air Bag Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes, and Battery Terminal Disconnection and Reconnection See: Starting and
Charging/Battery/Service and Repair/Procedures.
- Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS
unit software See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Programming and Relearning/SRS Unit Update,
and retest.
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to ON (II), then wait for 10 seconds.
