Mitsubishi MOTORS L200 1996, Workshop Manual

Page: 1388 / 1723

11
INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
INSPECTION PROCEDURE 1
None of the doors can be locked or unlocked using
the transmitter. Probable cause
The cause may be a malfunction of the transmitter or ETACS-
ECU, defective connection between ETACS-ECU and junction
block, defective power supply voltage to ETACS-ECU input
line due to commercial equipment, or the lock and unlock sig-
nals are not being sent to the ETACS-ECU.
•
Malfunction of transmitter
•
Malfunction of ETACS-ECU
•
Malfunction of key reminder switch
•
Malfunction of wiring harness or connector
•
Malfunction of door switch
•
Defective connection between ETACS-ECU and
junction block
•
Defective power supply voltage to ETACS-ECU
input line due to commercial equipment
Check the central door lock system
Can the doors be locked and unlocked by the pas-
senger’s-side door key cylinder and lock knob?
Yes
No
Has the encrypted code been registered properly? * NG Re-register the encrypted code. (Refer to P.42.6)
OK
Replace the transmitter battery. (Refer to P.42-6)
NG
Is a commercial equipment equipped?
No
Yes
Remove that equipment, and then check trouble
symptoms.
NG
Check the connection between ETACS-ECU and
junction block claw. NG
Repair
OK
NG .Check the following connectors:
A-56X, C-81, C-91
OK NG
Measure at the ETACS-ECU connector C-91.
•
Disconnect the connector, and measure at the
harness side.
•
Voltage between 2 and body earth
OK: System voltage
Check trouble symptoms
Repair
OK NG
Check the harness wire, and repair if necessary.
•
Between fusible link No.5 and ETACS-ECU
Door switch continuity check
OK NG
Mut-II Pulse Check
•
Door switch input signal
OK: MUT-II Buzzer sounds once when opening
and closing each door.
NG
Repair
OK
Check the following connectors:
C-110, D-03, D-07, D-14, D-17, D-21
OK NG
Check trouble Symptoms.
Repair
NG
To next page Check the harness wire, and repair if necessary.
•
Between ETACS-ECU and door switch
NOTE
*:
This should be done if a transmitter, receiver or ETACS-ECU has been replaced, and if a secret cod
has not been registered properly
BODY – Keyless Entry System
42-3