Toyota Corolla Cross: Acoustic Vehicle Alerting System
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PRECAUTION PRECAUTIONS FOR DISCONNECTING AND RECONNECTING CABLE TO NEGATIVE (-) AUXILIARY BATTERY TERMINAL
NOTICE:
After the ignition switch is turned off, there may be a waiting time before discon
PARTS LOCATION ILLUSTRATION
*1 VEHICLE APPROACHING SPEAKER ASSEMBLY
*2 SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)
*3 HYBRID VEHICLE CONTROL ECU
*4 VEHICLE APPROACHING S
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DESCRIPTION
When the ignition switch is turned to ON, auxiliary battery voltage is applied
to terminal MREL of the ECM through the coil of the EFI-MAIN relay. This causes
the EFI-MAIN relay to close, which supplies power to terminal +B of the TCM.
WIRING DIAGRAM
Refer to DTC U010087.
Click h
CHECK MODE PROCEDURE
DESCRIPTION
(a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions
that cannot be detected in normal mode. Check mode can also detect all of the malfunctions
that can be detected in normal mode. In check mode, DTCs are stored with 1-trip
dete
Precaution
ECU Power Source Circuit
