Toyota Corolla Cross: System Description
SYSTEM DESCRIPTION
LOAD OPERATION OUTPUT
(a) Load is turned on or off according to the operation signals and switch signals from each ECU.
|
Components |
Power Distribution Box Assembly |
|---|---|
|
Rear Window Defogger |
○ |
|
Back-up Light |
○ |
|
Dome Cut |
○ |
|
Tail Light |
○ |
|
Front Fog Light*1 |
○ |
|
Panel Illumination |
○ |
|
Passenger Seat Buckle Switch Delegated Input |
○ |
|
Passenger Seat Occupant Detection Sensor Delegated Input |
○ |
|
Rear Seat RH Buckle Switch Delegated Input |
○ |
|
Rear Seat CTR Buckle Switch Delegated Input |
○ |
|
Rear Seat LH Buckle Switch Delegated Input |
○ |
|
IGR Relay*2 |
○ |
|
+BA Relay |
○ |
- *1: w/ Front Fog Light
- *2: w/o Smart Key System
SEMICONDUCTOR FUSE FUNCTION
(a) When a malfunction current occurs during load operation, the current is shut off before the electrical lines emit smoke, and then load is turned off. After the current is shut off, the off condition is maintained until the operation signals or switch signals turn off.
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use these procedures to troubleshoot the power integration system.
*: Use the GTS.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
Utility
UTILITY
ALL READINESS
(a) Power Distribution Box Assembly
Body Electrical > Power Distribution Box > Utility
Tester Display
All Readiness
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of the problem symptom. If multiple
suspected areas are listed, the potential causes of the symptoms are listed in orde
SEE MORE:
Inspection
INSPECTION
PROCEDURE
1. INSPECT TRANSMISSION REVOLUTION SENSOR (NSS)
(a) Connect the battery to the transmission revolution sensor (NSS) as shown
in the illustration.
*1
Battery
*2
Ammeter
*a
Component without harness co
Recirculated/Fresh Air Modes Switch without User Input
DESCRIPTION If recirculation/fresh mode changes unintentionally and without permission, the following causes are possible.
Symptom Factor
Recirculation/fresh mode changes without permission
Recirculation/fresh mode light blinks
Customize setting
Chan
