Toyota Yaris: Stop And Start System / System Diagram
SYSTEM DIAGRAM

PARTS LOCATION ILLUSTRATION
*A w/ Toyota Safety Sense *B w/ Active Noise Control System *1 ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY) *2 VACUUM SENSOR ASSEMBLY *3 INNER REAR VIEW MIRROR ASSEMBLY *4 ECM *5 SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) *6 EXTERNAL BACKUP BOOST CONVERTER (ECO RUN VEHICLE CONVERTER ASSEMBLY) *7 MILLIMETER WAVE RADAR SENSOR ASSEMBLY *8 FORWARD RECOGNITION CAMERA *9 ENGINE ROOM RELAY BLOCK - EFI-MAIN NO...
SYSTEM DESCRIPTION STOP AND START CONTROL The stop and start system operates according to the following conditions, achieving appropriate engine stop and start control together with safe and smooth driving characteristics...
Other information:
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
PROCEDURE 1. INSTALL NO. 1 SIDE AIRBAG SENSOR (a) Check that the ignition switch is off. (b) Check that the cable is disconnected from the negative (-) auxiliary battery terminal...
DESCRIPTION If there is a communication malfunction between the ECM and ID code box (immobiliser code ECU), or when the communication ID codes do not match, the ECM stores this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area Note B279986 Engine Immobiliser System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid Either of the following conditions is met (1 trip detection logic*):
A malfunction is detected in the communication or communication lines between the ECM and ID code box (immobiliser code ECU)...
Categories
If a key is left in the vehicle, the functions of the key left in the vehicle
are temporarily suspended to prevent theft of the vehicle.
To restore the functions, press the unlock button on the functions-suspended
key in the vehicle.
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