LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 262 (Air Bag Restraint Systems) >> Diagnostic Tests >> DTC 74/B0136: Open In Driver-Side Seat Belt PRETENSIONER Squib Circuit >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Toyota Matrix and 2004 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disable air bag system. See DISABLING SYSTEM  under DISABLING & ACTIVATING AIR BAG SYSTEM. Disconnect driver-side seat belt pretensioner harness connector. See SEAT BELT PRETENSIONER  under REMOVAL & INSTALLATION. Access air bag sensor assembly and disconnect harness connector A12. See AIR BAG SENSOR ASSEMBLY  under REMOVAL & INSTALLATION. See Figure. Measure resistance between Yellow/Black wire and Yellow wire on harness side of driver-side seat belt pretensioner harness connector. See WIRING DIAGRAMS . If resistance is more than one ohm, repair or replace harness or connector between driver-side seat belt pretensioner and air bag sensor assembly. If resistance is less than one ohm, go to next step.
  2. Reconnect air bag sensor assembly connector A12 to air bag sensor assembly. Connect jumper wire between Yellow/Black wire and Yellow wire on harness side of driver-side seat belt pretensioner harness connector. Connect negative battery cable. Wait at least 2 seconds. Turn ignition switch to 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 ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES  under DIAGNOSTICS. If DTC 74/B0136 is not displayed, go to next step. If DTC 74/B0136 is displayed, replace air bag sensor assembly.
  3. 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 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 ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES  under DIAGNOSTICS. If DTC 74/B0136 is not displayed, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT . If DTC 74/B0136 is displayed, replace driver-side seat belt pretensioner.
scientia non olet · About LEMON Manuals