DESCRIPTION
The multiplex network body ECU controls power supplied to the power window master switch and each regulator switch continuously for 45 seconds after the ignition switch is turned OFF unless the front doors have been opened, so that the power window can be operated during this period.
However, if either front door is opened or if a signal from any of the front door courtesy lamp switches is input to the ECU during 45 seconds, or if 45 seconds pass with nothing being done, the multiplex network body ECU will stop supplying power, thus disabling power window operation disabled.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK CHECK OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF
2 READ VALUE OF INTELLIGENT TESTER
Standard (Multiplex network body ECU)
Item |
Measurement Item/Display (Range) |
Normal Condition |
Diagnostic Note |
D DOR CTY SW | Driver side door courtesy switch signal/ ON or OFF | ON: Driver side door is open OFF: Driver side door is closed |
- |
P DOR CTY SW | Passenger side door courtesy switch signal/ ON or OFF | ON: Passenger side door is open OFF: Passenger side door is closed |
- |
3 INSPECT DOOR COURTESY SWITCH ASSEMBLY
Standard resistance
4 CHECK WIRE HARNESS (FRONT DOOR COURTESY SWITCH - MULTIPLEX NETWORK BODY ECU)
Standard resistance
REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY (MULTIPLEX NETWORK BODY ECU)
Terminals of ecm
1. Ecm
Hint:
each ecm terminal's standard voltage is shown in the
table below.
In the table, first follow the information under "condition".
Look under "symbols (terminal no.)" For the terminals to
inspected. The standard voltage between the terminals
is shown under ...
How to proceed with
troubleshooting
HINT:
*: Use the intelligent tester.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
Confirm problem symptoms
3 CHECK MULTIPLEX COMMUNICATION SYSTEM*
Check if the multiplex communication system DTC is
output.
HINT:
The center airbag sensor assembly of this system is
co ...
Rear Air Conditioning Control Panel Circuit
DESCRIPTION
This is the rear A/C system control signal circuit as well as the power
supply circuit of the rear A/C control
assembly.
Pulse signals regarding rear A/C control panel switch operation are transmitted
between the A/C amplifier
and rear A/C control assembly.
WIRING DIAGRAM
...