Toyota Corolla Cross: Power Integration System
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PRECAUTION
PRECAUTION FOR POWER DISTRIBUTION BOX ASSEMBLY
(a) Do not remove or install the power distribution box assembly with the negative
(-) auxiliary battery terminal connected.
NOTICE:
PARTS LOCATION
ILLUSTRATION
*1
for HEV Model
-
-
*3
NO. 1 ENGINE ROOM RELAY BLOCK
- INP STD NO. 1
- INP STD NO. 2
-
SEE MORE:
MONITOR DESCRIPTION The fuel pump control ECU has a self-diagnosis function. If there is an internal malfunction, the fuel pump control ECU sends a malfunction signal to the ECM via the FPC drive circuit.
Based on the signal, the ECM judges that there is a malfunction in the fuel pump control ECU
DESCRIPTION A backup boost converter is built into the engine stop and start ECU.
The backup boost converter helps maintain auxiliary battery voltage to prevent various functions from failing if power source voltage supplied from the backup boost converter drops due to the high electrical load whe
