DESCRIPTION
The un-lock warning switch turns ON when the key is inserted in the ignition key cylinder. The courtesy light switch turns ON when the driver side door is opened. These 2 switches are monitored by the body ECU.
In order to prevent the key from being locked in, the body ECU controls door locking operation according to the conditions of these switches so that the doors are not locked.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT FUSE (ECU-B)
Standard resistance: Below 1 Ω
2 READ VALUE OF DATA LIST
BODY (Multiplex network body ECU)
3 INSPECT UN-LOCK WARNING SWITCH ASSEMBLY
Standard resistance
4 CHECK HARNESS AND CONNECTOR (UN-LOCK WARNING SWITCH ASSEMBLY - DRIVER SIDE J/B)
Standard resistance
REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY (MULTIPLEX NETWORK BODY ECU)
5 READ VALUE OF DATA LIST
BODY (Multiplex network body ECU)
6 INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (DRIVER SIDE)
Standard resistance
7 CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH - DRIVER SIDE J/B)
Standard resistance
REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY (MULTIPLEX NETWORK BODY ECU)
Installation
1. INSTALL SEAT POSITION AIRBAG SENSOR
Check that the ignition switch is off.
Check that the negative battery (-) terminal is
disconnected.
CAUTION:
After disconnecting the negative battery
terminal, wait for at least 90 seconds before
starting the operation.
...
How to proceed with
troubleshooting
HINT:
Troubleshoot in accordance with the procedures on the
following pages.
1 VEHICLE BROUGHT TO WORKSHOP
2 DTC CHECK
Check for DTCs and make a note of the code that is
output (See page MP-14).
Delete the DTC.
Check if the DTC is output once again when the problem
symptom is simulat ...
Room temperature sensor
On-vehicle inspection
1. INSPECT A/C ROOM TEMPERATURE SENSOR
(a) Remove the A/C room temperature sensor.
(b) Measure the resistance according to the value(s) in
the table below.
Standard resistance
NOTICE:
Even slightly touching the sensor may
change the resistance value. Be sure ...