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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 B1913, B1916, B1932, B1934 >> 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 B1913, B1916, B1932, B1934 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 INSPECT DRIVER-SIDE AIR BAG MODULE (INFLATOR NO. 1) 
  • Check the following PID/DATA monitor, using SST  (WDS or equivalent). (See PID/DATA MONITOR TABLE  .)
    • DABAGR
  • Is resistance value of driver-side air bag module normal?
    • Resistance: 1.5-3.7 ohms 
 Yes Present malfunction diagnosis: 

Past malfunction diagnosis: 
  • Troubleshooting completed.
No Go to next step.
2 INSPECT DRIVER-SIDE AIR BAG MODULE CONNECTOR (CLOCK SPRING) 
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 air bag module.
  • Is there cracking or chipping in driver-side air bag module connector?
 Yes Replace wiring harness.
No Go to next step.
3 VERIFY WHETHER MALFUNCTION IS IN DRIVER-SIDE AIR BAG MODULE (INFLATOR NO. 1) OR RELATED WIRING HARNESS 
  • Connect leads of SST  (Fuel and thermometer checker) or apply 2-ohm resistor to driver-side air bag module (inflator No. 1) terminal 3A and 3B, and driver-side air bag module (inflator No. 2) terminal 4A and 4B.
  • 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_DAB1_ST
  • Is related wiring harness normal?
 Yes Replace driver-side air bag module. (See DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION .)
No Go to next step.
4 INSPECT CLOCK SPRING 
 Yes Go to next step.
No Replace clock spring. (See CLOCK SPRING REMOVAL/INSTALLATION .)
5 INSPECT WIRING HARNESS BETWEEN CLOCK SPRING AND SAS CONTROL MODULE 
  • Turn ignition switch to LOCK position.
  • Disconnect negative battery cable and wait for more than 1 minute. 
  • Remove column cover.
  • Disconnect clock spring connector.
  • Remove glove compartment.
  • Disconnect passenger-side air bag module connector.
  • Disconnect driver and passenger-side side air bag module connectors. (Vehicles with side air bag)
  • Disconnect driver and passenger-side curtain air bag module connectors. (Vehicles with curtain air bag)
  • Remove B-pillar lower trims. (Vehicles with pre-tensioner seat belt)
  • Disconnect driver and passenger-side pre-tensioner seat belt connectors. (Vehicles with pre-tensioner seat belt)
  • Turn up floor covering.
  • Disconnect all SAS control module connectors.
  • Inspect the following wiring harnesses between SAS control module and clock spring terminals for short to ground, short to power supply, and open circuit:
    • 1S-1D
    • 1V-1C
  • Is wiring harness okay?
 Yes Present malfunction diagnosis: 

Past malfunction diagnosis: 
  • Troubleshooting completed.
No Replace wiring harnesses.
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