i
CHASSIS ELECTRICAL
-
Theft-alarm System
54-229
JS!
SECURITY
E-04
@y&fiNAT! ON
.$
3
6
152
FUSIBLE
LINK
CE)
m
z
0
al
z!
r
%BECATED
m
CL
1
TO
THE
ECU
TO
THE
HORN
8. SECURITY LIGHT ACTIVATION CIRCUIT
Description of operation
If all doors are in locked state after key-less locking, the ECU
transistor is turned ON and the security light comes on.
Checking the security light activation circuit (Disconnect the
connector of the ECU and check at the wiring harness side.)
Nor-
mal
Mal-
step
Check object
condi-
func-
Cause
Remedy
tion
tion
1
D-04
connector
12v ov
terminal voltage 51
Fuse (19)
dam-
Replace
aged or discon-
the fuse
netted
Harness dam-
Repair the
aged or discon-
harness
netted, or
short-
circuit
2
D-04
connector
12v ov
terminal voltage 52
Damaged or
dis-
Replace
connected wiring
the bulb
of
SECURITY
light bulb
Harness dam-
Repair the
aged or discon-
harness
netted
3
ECU terminal volt-
12v ov
Harness
dam-
age 57
Repair the
aged or discon-
harness
netted, or
short-
circuit
9. HORN RELAY POWER-SUPPLY CIRCUIT
Description of operation
Power voltage is always supplied to the horn relay.
Checking the horn relay power-supply circuit (Disconnect the
horn relay)
connector terminal
Mal-
func-
Cause Remedy
tion
Fuse (3)
dam-
Replace the
aged or discon-
fuse
netted
Damaged or
dis-
Repair the
har-
connected har-
ness
ness
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