Toyota Corolla Cross: Engine & Hybrid System

 ECU Power Source Circuit

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

 Front Left Air Mix Damper Control Servo Motor Actuator Stuck Off (B144C7F)

DESCRIPTION The No. 1 air conditioning radiator damper servo sub-assembly sends pulse signals to inform the air conditioning amplifier assembly of the damper position. The air conditioning amplifier assembly activates the motor (normal or reverse) based on these signals to move the air outlet damper