Toyota Corolla Cross: Engine Stop And Start Ecu
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REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 READ NUMBER OF STARTER OPERATIONS
-
- -
2 POWER
INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION)
Procedure Part Name Code
1 ENGINE STOP AND START ECU
89261A
- -
2
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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
DESCRIPTION
When the ignition switch is 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.
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CAU
Removal
ECM Power Source Circuit
