Mitsubishi Electric 55624R(S)-MF Service Manual page 87

3. DOOR SWITCH (ALL DOORS) INPUT CIRCUIT
Description of operation
When, with the dome light illuminated (with the
ignition switch at the "ACC" or "OFF" position),
HIGH-level signals are sent to the electronic control
unit, the timer circuit is activated and the dimmed-
light function of the dome light is started.
Electronic control unit terminal voltage (status of the electronic control unit connector)
I
E C U t e r m i n a l N o .
1 1*2
Checking the door switch circuit
(Disconnect the electronic control unit connector and check the wiring harness side.)
Terminal
Connected
to/measured
component
Door switch
NOTE
Individual part check
Door switch . . . Refer to GROUP 42-Front and Rear
Doors.
NOTE
When making the checks indicated by the *
LIGHTING SYSTEM
door
switch
Door
Signal
*Door is opened
(door switch:
All doors are closed
(door switch: OFF).
Measurement
Tester
connection
Resistance
11 ground**
symbol, conduct the check for each individual
door, checking to be sure that only the door being
checked is open.
TSB Revision
ETACS
control unit
(electronic
control unit)
(right) (left)
If there is an abnormal condition of the door switch
system, the dome light will not function normally
at the door-interlocked setting of its switch.
C o n d i t i o n s
ON).
Check conditions
All doors are closed
*Door is opened.
I
54-87
NOTE
alarm system
system
Terminal voltage
o v
Standard
No continui-
Continuity