Mitsubishi 3000GT 1991, Service Manual

Page: 929 / 1146

BODY Central Door Locking System
42-57
2. DOOR LOCK ACTUATOR INPUT CIRCUIT
ETACS
unit (ECU)
Fusible link
Junction block
(Multi-purpose fuse)
Vehicles without theft-alarm system
“2: Vehicles with theft-alarm system
16
Description of operation
If the door is opened with the ignition key inserted and then locking is made by means of inside lock knob, the
door lock actuator is brought to the OFF position, sending H signal to the electronic control unit.
This signal operates the timer. circuit of the electronic control unit and the driving circuit operates to actuator
all the door lock actuators.
Electronic control unit terminal voltage (Connection status of electronic control unit connector)
ECU terminal No. Signal Condition
Terminal
voltage
13”’ (LH)
Door lock actuator switch Door lock actuator switch
signal
Lock (OFF) 5 v
(RH)
Unlock (ON) o v
Door lock actuator switch circuit test (Disconnect the connector of the electronic control unit and
check the wiring harness side.)
ECU Terminal Connected to/
No. measured part
Measurement
Tester
connection
Check conditions Standard
Door lock actuator
13”’ switch signal
Resistance 11 *‘-ground
Door lock Lock (OFF)
actuator switch
No continuity
14”’ (RH) Unlock (ON) Continuity
NOTE
Vehicles without theft-alarm system
“2: Vehicles with theft-alarm system
Checking the individual part
Door lock actuator: Refer to
TSB Revision