Technician Safety Information

HINT: Take care to observe the following precautions when performing inspections or removal and replacement of body electrical related parts.

The 4 RUNNER is equipped with an SRS (Supplemental Restraint System) such as the driver airbag and front passenger airbag. Failure to carry out service operation in the correct sequence could cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing (including removal or installation of parts, inspection or replacement), be sure to read the precautionary notices.


NOTE: When inspecting or repairing the SRS (Supplemental Restraint System), perform the operation in accordance with the following precautionary instructions and the procedure and precautions for the applicable model year.

Malfunction symptoms of the SRS are difficult to confirm, so the DTC's become the most important source of information when troubleshooting. When troubleshooting the SRS, always inspect the DTC's before disconnecting the battery.

Work must be started after 90 seconds from when the ignition SW is turned to the "LOCK" position and the negative (-) terminal cable is disconnected from the battery.
(The SRS is equipped with a back-up power source so that if work is started within 90 seconds from disconnecting the negative (-) terminal cable of the battery, the SRS may be deployed.)

When the negative (-) terminal cable is disconnected from the battery, memory of the clock and audio system will be canceled. So before starting work, make a record of the contents memorized in the audio memory system. When work is finished, reset the audio system as they were before and adjust the clock. This vehicle has power tilt and power telescopic steering, power seat and power outside rear view mirror which are all equipped with memory function. However, it is not possible to make a record of the memory contents. So when the work is finished, it will be necessary to explain this fact to the customer, and ask customer to adjust the features and reset the memory. To avoid erasing the memory of each memory system, never use a back-up power supply from outside the vehicle.

Before repairs, remove the airbag sensors if shocks are likely to be applied to the sensor during repairs.

Do not expose the steering wheel pad, front passenger airbag assembly, pretensioner assembly, airbag sensor front assembly and center airbag sensor assembly directly to hot air or flames.

Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, front passenger airbag assembly, pretensioner assembly, airbag sensor front assembly and center airbag assembly should be inspected.

Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.

Never disassemble and repair the steering wheel pad, front passenger airbag assembly, pretensioner assembly, airbag sensor front assembly and center airbag assembly sensor assembly in order to reuse it.

If the steering wheel pad, front passenger airbag assembly, pretensioner assembly, airbag sensor front assembly and center airbag assembly has been dropped, or if there are cracks, dents or other defects in the case, bracket or connector, replace them with new ones.

Use a volt/ohmmeter with high impedance (10 K Ohms/Volt minimum) for troubleshooting the system's electrical circuits.

Information labels are attached to the periphery of the SRS components. Follow the instructions on the notices.

After work on the SRS is completed, check the SRS warning light check.