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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 377 (On-Board Diagnostic (Air Bag System]) >> DTC B1992, B1993, B1994, B1995 >> Diagnostic procedure

Diagnostic procedure

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1992, B1993, B1994, B1995 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 INSPECT DRIVER-SIDE SIDE AIR BAG MODULE 
  • Check the following PID/DATA monitor, using SST  (WDS or equivalent). (See PID/DATA MONITOR TABLE  .)
    • DS_AB
  • Is resistance of driver-side side air bag module normal?
    • Resistance: 1.4-3.2 ohms 
 Yes Present malfunction diagnosis: 

Past malfunction diagnosis: 
  • Troubleshooting completed.
No Go to next step.
2 INSPECT DRIVER-SIDE SIDE AIR BAG MODULE CONNECTOR 
WARNING:
  • Handling the air bag system components improperly can accidentally operate (deploy) the air bag modules and pre-tensioner seat belts, which may seriously injure you. Read the service warnings and cautions before handling the air bag system components. (See SERVICE WARNINGS .)(See SERVICE CAUTIONS .)

  • Turn ignition switch to LOCK position.
  • Disconnect negative battery cable and wait for more than 1 minute. 
  • Remove driver-side side air bag module.
  • Is there cracking or chipping in driver-side side air bag module connector?
 Yes Replace wiring harness.
No Go to next step.
3 VERIFY WHETHER MALFUNCTION IS IN DRIVER-SIDE SIDE AIR BAG MODULE OR RELATED WIRING HARNESS 
  • Connect leads of SST  (Fuel and thermometer checker) or apply 2-ohm resistor to driver-side side air bag module terminal A and B.
  • Set resistance of SST  (Fuel and thermometer checker) to 2 ohms.
  • Connect negative battery cable.
  • Turn ignition switch to ON position.
  • Check the following PID/DATA monitor, using SST  (WDS or equivalent). (See PID/DATA MONITOR TABLE  .)
    • OD_DSAB_ST
  • Is related wiring harness normal?
 Yes Replace driver-side side air bag module. (See SIDE AIR BAG MODULE REMOVAL/INSTALLATION .)
No Replace wiring harness, then go to next step.
4 INSPECT SAS CONTROL MODULE 
  • Turn ignition switch to LOCK position.
  • Disconnect negative battery cable and wait for more than 1 minute. 
  • Connect driver-side side air bag module connector.
  • Are any one or all of the following DTCs displayed?
    • B1992
    • B1993
    • B1994
    • B1995
 Yes Present malfunction diagnosis: 

Past malfunction diagnosis: 
  • Troubleshooting completed.
No Troubleshooting completed.
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