Toyota Corolla Cross: System Description
SYSTEM DESCRIPTION
FUNCTION OF SRS CONNECTORS
(a) Location of activation prevention mechanism
(b) Function of activation prevention mechanism
(1) This mechanism is designed to create a short circuit automatically between the positive (+) and negative (-) terminals of a squib power source connector when disconnected.
(2) The short spring contained in the connector creates a closed circuit on the squib side (no potential difference can occur between both terminals), preventing accidental squib deployment when servicing.
(c) Releasing of activation prevention mechanism
(1) To release the activation prevention mechanism, insert a piece of paper with the same thickness as the male terminal (approximately 0.5 mm (0.0197 in.)) between the terminals and short spring to break the connection.
(2) Refer to the following illustrations concerning connectors utilizing the activation prevention mechanism and its release method.
CAUTION:
Never release the activation prevention mechanism on the squib connector even when inspecting with the squib disconnected.
NOTICE:
- Do not release the activation prevention mechanism unless specified by the troubleshooting procedure.
- To prevent the terminals and short spring from being damaged, always use a piece of paper with the same thickness as the male terminal.
HINT:
To prevent improper operation due to static electricity, etc., the connector of the SRS airbag squib circuit has a short mechanism, and the airbag terminal is shorted while the connector is disconnected.
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the airbag system.
*: Use the GTS.
PROCEDURE
1. VEHICLE BROUGHT TO WORKSHOP
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Operation Check
OPERATION CHECK PRECAUTION FOR OPERATION CHECK
Be sure to read Precaution thoroughly before servicing.
Click here
Be sure to correctly follow the removal and installation procedures f
Utility
UTILITY WRITE VIN/VEHICLE IDENTIFICATION NUMBER
NOTICE:
When the airbag sensor assembly is replaced, it is necessary to write the VIN/Vehicle Identification Number.
Since the VIN informatio
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Antenna Coil Circuit Voltage Out of Range (B27841C)
DESCRIPTION When an open or short circuit is detected in the transponder key amplifier coil built into the power switch, the certification ECU (smart key ECU assembly) stores this DTC. This DTC is also stored as a history DTC.
DTC No. Detection Item
DTC Detection Condition Trouble Are
Driving assist systems
To keep driving safety and
performance, the following
systems operate automatically
in response to various
driving situations. Be
aware, however, that these
systems are supplementary
and should not be relied
upon too heavily when operating
the vehicle.
Summary of the driving
assist systems
■ ABS (
