Mitsubishi MOTORS 3000GT Bedienungsanleitung Seite 718

TROUBLESHOOTING QUICK-REFERENCE TABLE
For information concerning the locations of electrical components, refer to GENERAL-Theft-alarm System
Circuit.
ARMING / DISARMING RELATIONSHIP
1.
Trouble symptom
The system is not armed (The
SECURITY light doesn't illumi-
nate, and the alarm doesn't func-
tion.)
(The central door locking system
functions normally.
If the central locking system does
not function normally, refer to
GROUP 42.)
The arming procedures are fol-
lowed, but the SECURITY light
does not illuminate.
(There is an alarm, however,
when an alarm test is conducted
after about 20 seconds have
passed.)
The alarm sounds in error when,
while the system is armed, a door
or the liftgate is unlocked by us-
ing the key.
ACTIVATION / DEACTIVATION RELATIONSHIP
2.
Trouble symptom
There is no alarm when, as an
alarm test, a door is opened with-
out using the key.
(The arming and disarming are
normal, and the alarm is acti-
opened.)
There is no alarm when, as an
alarm test, the liftgate is opened
without using the key.
(The alarm is activated, however,
by opening a door or the hood.)
CHASSIS ELECTRICAL - Theft-alarm System
Cause
Damaged or disconnected
wiring of ECU power sup-
ply circuit
Damaged or disconnected
wiring of door switch input
circuit
Damaged or disconnected
wiring of SECURITY light
activation circuit.
Blown SECURITY light
bulb
Malfunction of the ECU.
Damaged or disconnected
wiring of a door key cylin-
der and the liftgate unlock
switch input circuit.
Malfunction of a door key
cylinder and the liftgate un-
lock switch.
Malfunction of the ECU.
Cause
Damaged or disconnected
wiring of door switch (all
doors) input circuit
Malfunction of the door
switch
Malfunction of the ECU
Damaged or disconnected
wiring of liftgate switch in-
put circuit
Malfunction of the liftgate
switch.
Malfunction of the ECU.
TSB Revision
Check method Remedy
Check by using check Replace the fusible link
chart P.54-224.
No. (6) or the fuse No.
Repair the harness.
Check by using check Repair the harness or re-
chart P.54-225. place the door switch.
Check by using check Replace the fusible link
chart P.54-229. No. (6) or the fuse No.
Repair the harness.
Replace the bulb.
Replace the ECU.
If input checks
Repair the harness or re-
place a door key cylinder
malfunction, check by and the liftgate unlock
switch.
using check chart
Replace the ECU.
Check method Remedy
If input checks Repairthe harness or re-
place the door switch.
malfunction, check by
using check chart
Replace the ECU.
If input checks Repair the harness or re-
place the liftgate switch.
malfunction, check by
using check chart
Replace the ECU.