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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 C1947, C1948, C1981 >> 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 C1947, C1948, C1981 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 INSPECT SEAT TRACK POSITION SENSOR CIRCUIT 
  • Check the following PID/DATA monitor, using SST  (WDS or equivalent). (See PID/DATA MONITOR TABLE  .)
    • TRAK_SW
  • Is seat track position sensor circuit normal?
 Yes Present malfunction diagnosis: 

Past malfunction diagnosis: 
  • Troubleshooting completed.
No Go to next step.
2 INSPECT WIRING HARNESS BETWEEN SEAT TRACK POSITION SENSOR AND SAS CONTROL MODULE 
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 column cover.
  • Disconnect clock spring connector.
  • Remove glove compartment.
  • Disconnect passenger-side air bag module connector.
  • Disconnect driver and passenger-side curtain air bag module connectors. (Vehicles with curtain air bag)
  • Disconnect driver and passenger-side side air bag module connectors. (Vehicles with side 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 seat track position sensor connector
  • Inspect the following wiring harness between SAS control module and seat track position sensor terminals for short to ground, short to power supply, and open circuit:
    • 2W-A
    • 2X-B
  • Is wiring harness okay?
 Yes Replace seat track position sensor, then go to next step.
No Replace wiring harness, then go to next step.
3 INSPECT SAS CONTROL MODULE 
  • Connect SAS control module connector.
  • Connect clock spring connector.
  • Connect passenger-side air bag module connector.
  • Connect driver-and passenger-side curtain air bag module connectors.
  • Connect driver-and passenger-side side air bag module connectors.
  • Connect driver-and passenger-side pre tensioner seat belt connectors.
  • Connect seat track position sensor connector.
  • Are any one or all of the following DTCs displayed?
    • C1947
    • C1948
    • C1981
 Yes Present malfunction diagnosis: 

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