Toyota Corolla Cross: Front Radar Sensor System

 Stop and Start System does not Operate (Battery Condition)

DESCRIPTION When the stop and start system does not operate, check whether the operation is prohibited because the auxiliary battery conditions are not met. Data List items Hood Courtesy Switch Battery Current Battery Fluid Temperature (Start) Battery Fluid Temperature Idli

 ECM Power Source Circuit

DESCRIPTION When the ignition switch is turned to ON, the auxiliary battery voltage is applied to IGP of the ECM. When the transistor in the MREL circuit operates, current flows from the auxiliary battery to ground through the drive circuit of the EFI-MAIN NO. 1 relay, thus operating the relay which