Mitsubishi MOTORS 3000GT Bedienungsanleitung Seite 726

CHASSIS ELECTRICAL
10. HORN ACTIVATION CIRCUIT
Description of operation
The ECU transistor is turned ON if the vehicle door, etc. are
opened without use of the key.
This energizes the horn relay to activate the horn.
Checking the horn activation circuit (Disconnect the connector
of the ECU, then short-circuit terminal connector No.58, and
activate the horn relay.)
Step
1
11. THEFT ALARM HORN RELAY POWER-SUPPLY
CIRCUIT
Description of operation
Power voltage is always supplied to theft alarm horn relay.
Checking the horn relay power-supply circuit (Disconnect the
theft alarm horn relay)
Check object
HORN
connector terminal
voltage 1
TSB Revision
Nor- 1
Check object
tion
12v ov
nal voltage
12v ov
age (LH & R H )
(1 -Ground)
soun
age (LH & R H ) doesn't
(1 -Ground)
ds (0 sound
Battery
voltage
Normal
condi-
tion
tion
1 2 v
o v
RELAY
I I
Cause Remedy
I
Malfunction of Check the
the horn relay
(Refer to
Harness Repair the
aged or discon- harness
Malfunction of Replace
the horn the horn
Damaged or dis- Repair the
connected wiring harness
of ground circuit
Cause Remedy
Fuse (14) dam- Replace the
aged or discon- fuse
Damaged or dis- Repair the har-
connected har- ness
ness