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Home >> Toyota >> 2000 >> 4Runner Base, 4WD >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> Air Bag Restraint Systems >> Diagnostic Tests >> DTC 62-B0133: Short To Battery In Driver-Side And-Or Passenger-Side Seat Belt PRETENSIONER Squib Circuit >> Diagnostic Procedure

Diagnostic Procedure

  1. Disable air bag system. See DISABLING SYSTEM  under DISABLING & ACTIVATING AIR BAG SYSTEM. Reconnect negative battery cable.
  2. Turn ignition switch to ON position. Measure voltage between ground and Yellow-Black wire (circuit PL+) of air bag sensor assembly side of driver-side seat belt pretensioner squib harness connector. See WIRING DIAGRAMS . If voltage is more than one volt, repair or replace harness or connector between seat belt pretensioner and air bag sensor assembly. If voltage is less than one volt, go to next step.
  3. Measure voltage between ground and Yellow-Black wire (circuit PR+) of air bag sensor assembly side of passenger-side seat belt pretensioner squib harness connector. See WIRING DIAGRAMS . If voltage is more than one volt, repair or replace harness or connector between seat belt pretensioner and air bag sensor assembly. If voltage is less than one volt, turn ignition switch to LOCK position and go to next step.
  4. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect air bag sensor assembly connectors C20 and C22 to air bag sensor assembly. Connect jumper wire between Yellow-Black wire (circuit PL+) and Yellow wire (circuit PL-) of air bag sensor assembly side of driver-side seat belt pretensioner squib harness connector. Connect jumper wire between Yellow-Black wire (circuit PR+) and Yellow wire (circuit PR-) of air bag sensor assembly side of passenger-side seat belt pretensioner squib harness connector. Connect negative battery cable. Wait at least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See CLEARING CODES  under DIAGNOSTICS. Turn ignition switch to LOCK position. Wait at least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES  under DIAGNOSTICS. If DTC 62-B0133 is not displayed, go to next step. If DTC 62-B0133 is displayed, replace air bag sensor assembly.
  5. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect driver-side seat belt pretensioner connector. Connect negative battery cable. Wait at least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See CLEARING CODES  under DIAGNOSTICS. Turn ignition switch to LOCK position. Wait at least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES  under DIAGNOSTICS. If DTC 62-B0133 is not displayed, go to next step. If DTC 62-B0133 is displayed, replace driver-side seat belt pretensioner.
  6. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect passenger-side seat belt pretensioner connector. Connect negative battery cable. Wait at least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See CLEARING CODES  under DIAGNOSTICS. Turn ignition switch to LOCK position. Wait at least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES  under DIAGNOSTICS. If DTC 62-B0133 is not displayed, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT . If DTC 62-B0133 is displayed, replace passenger-side seat belt pretensioner.
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