OEM 2007 Toyota Sequoia Air Bag

2007 Toyota Sequoia Parts Questions & Experts Answers

• Q: What precautions should be taken when servicing a vehicle equipped with SRS to prevent unexpected Air Bag deployment on 2007 Toyota Sequoia?

  A: The SRS safety system includes a driver Air Bag and front passenger Air Bag together with side Air Bag and curtain shield Air Bag components in the vehicle yet requires the proper service flow to stop accidental deployment because poor servicing techniques may result in major accidents. A minimum of ninety seconds must pass from switching to "LOCK" position and disconnecting the negative (-) terminal cable while waiting to start servicing because the SRS Back Up power source could activate in this span. Hot air or flames threaten injury when exposed to SRS components including steering wheel pad and front passenger Air Bag assembly and its related systems. The occupant classification ECU requires initialization under three conditions as well as two other circumstances. Firstly when replacing a defective ECU or putting in new accessories and also whenever performing installation or removal of the passenger seat and thirdly when the seat shows an empty condition through the passenger Air Bag ON/OFF indicator light. The examination of DTCs represents a critical troubleshooting tool for SRS system issues so check them before conducting battery disconnection. The complete inspection of relevant components must take place even when the Air Bags stay in the stowed position after a minor accident. It is essential to remove and replace SRS parts with new ones rather than reusing components from other vehicles and the sensor must be taken out before any operation which could produce vibrations to it. The repair or disassembly of SRS components is prohibited. The SRS features should only use new parts and replacements must occur for items that dropped or present physical defects. A high impedance (10 kOhms V minimum) volt/ohmmeter should be used to troubleshoot electrical circuits while following the instructions found on the information labels of SRS components. Check the SRS warning light after finishing SRS work because disconnecting the negative (-) terminal will erase system memory. Therefore write down current memory states before beginning work then restore every system to its original state. Users should begin the Back Door Window Control System initialization process after reconnecting the battery terminal. The installation or adjustment of side and curtain shield Air Bags on front and rear doors should begin only after waiting at least 90 seconds from disconnecting the negative (-) terminal. Every Air Bag sensor needs to be installed at both times when connecting and disconnecting the Air Bag sensor connector. Do not use any dropped sensor or break down an Air Bag sensor unit.