Page 1315 of 2267
Trouble Diagnoses
SYMPTOM CHART
REFERENCE PAGE EL-183 EL-184 EL-184 EL-185
SYMPTOM
POWER SUPPLY AND
GROUND CIRCUIT CHECK
DIAGNOSTIC PROCEDURE 1
(Lighting switch input signal check)
DIAGNOSTIC PROCEDURE 2
(Key switch input signal check)
DIAGNOSTIC PROCEDURE 3
Light warning chime does not acti-
vate.XX X
Ignition key warning chime does
not activate.XXX
All warning chimes do not activate. X X
POWER SUPPLY AND GROUND CIRCUIT CHECK
Power Supply Circuit Check
Terminals Ignition switch position
OFF ACC ON
9GroundBattery
voltageBattery
voltageBattery
voltage
1Ground 0V 0VBattery
voltage
Ground Circuit Check
Terminals Continuity
16- Ground Yes
Time control
unit connector
YEL430B
Time control unit connector
YEL431B
WARNING CHIME
EL-183
Page 1316 of 2267

DIAGNOSTIC PROCEDURE 1
(Lighting switch input signal check)
CHECK LIGHTING SWITCH INPUT
SIGNAL.
Check voltage between control unit
terminal
10and ground.
OK
NG
Check the following.
15A fuse (No.34,
located in the fuse and
fusible link box)
Harness for open or
short between control
unit and lighting switch
Go to Procedure 3.
Condition of lighting
switchVoltage [V]
1ST or 2ND Approx. 12
OFF 0
DIAGNOSTIC PROCEDURE 2
(Key switch input signal check)
CHECK KEY SWITCH INPUT SIGNAL.
Check voltage between control unit
terminal
22and ground.
OK
NG
Check the following.
Key switch
Refer to“Electrical
Components Inspec-
tion”(EL-185).
10A fuse [No.16,
located in fuse block
(J/B)]
Harness for open or
short between key
switch and fuse
Harness for open or
short between control
unit and key switch
Go to Procedure 3.
Condition of key switch Voltage [V]
Key is inserted. Approx. 12
Key is withdrawn. 0
YEL432B
Time control
unit connector
YEL433B
Time control
unit connector
: Approx.
12V
:0V
WARNING CHIME
Trouble Diagnoses (Cont’d)
EL-184
Page 1332 of 2267
Wiring Diagram—HLC—
YEL319B
B
G
12
LG/Bd13GE104
2
E128
3
B R/B
B
A
5 LG/B4 G2 P/L
E126
P/L
P/L
3
OR/B1
R/B
E37E11
L
EL-HLC-01
E126
E104
E38
XH HD
HD 10A 30A
XH
HD
1 2 OR/B
BE38
M
B
B
12
E1281
36
24
5 3
241
5
BATTERYIGNITION SWITCH
ON or START
FUSE
BLOCK
(J/B)Refer to EL-POWER.: With XENON headlamp or day-
time light system
: Except
HEADLAMP
WASHER TIMERNext page
HEADLAMP
WASHER
MOTORHEADLAMP
WASHER
SWITCH
OFFON
REFER TO THE FOLLOWING
FUSE BLOCK - Junction Box (J/B)
HEADLAMP WASHER
EL-200
Page 1333 of 2267
YEL179C
: With gasoline engine
: With diesel engine
: With XENON headlamp or
daytime light system
: Except
: With daytime light system and
without XENON headlamp
: With daytime light system
and XENON headlamp
: With XENON headlamp and
without daytime light system.BATTERY
Refer to EL-POWER.
OFF1ST2ND
OFF1ST2ND
COMBINATION
SWITCH
(LIGHTING SWITCH)
LOW
HIGH
Preceding
page
DIODE HEADLAMP
RELAY RHHEADLAMP
RELAY RHHEADLAMP
RELAY RH
Preceding
page
To Headlamp RH
(Refer to EL-H/LAMP and
EL-DTRL)PASS
HEADLAMP WASHER
Wiring Diagram—HLC—(Cont’d)
EL-201
Page 1335 of 2267
Wiring Diagram—HORN—
Type-1
YEL180C
BATTERY
Refer to EL-POWER.: With gasoline engine
: With diesel engine
: With steering wheel switch
: Without steering wheel switch
HORN
RELAY
HORN
LOWHORN
HIGH
OFFON HORN
SWITCHHORN
SWITCH
REFER TO THE FOLLOWING
FUSE BLOCK - Junction Box (J/B)
FUSE BLOCK - Junction Box (J/B)
*: This connector is not shown in“HARNESS LAYOUT”of EL section.OFFONFUSE
BLOCK
(J/B)
SPIRAL
CABLE
HORN, CIGARETTE LIGHTER AND CLOCK
EL-203
Page 1336 of 2267
YEL181C
IGNITION SWITCH
ACC or ONBATTERYIGNITION SWITCH
ON or START
FUSE
BLOCK
(J/B)BATTERY
Refer to EL-POWER.
POWER
FUSE
15A: With gasoline engine
: With diesel engine
: With XENON headlamp,
gasoline engine
: Except
CLOCKCOMBINATION
METER
(CLOCK)
CIGARETTE
LIGHTER
SOCKET
POWER
SOCKET
REFER TO THE FOLLOWING
FUSE BLOCK - Junction Box (J/B) ACCESSORY
RELAY IGNITION
SWITCH OFF
ONST
ACC
ACC
HORN, CIGARETTE LIGHTER AND CLOCK
Wiring Diagram—HORN—(Cont’d)
EL-204
Page 1337 of 2267
Type-2
YEL885C
HORN, CIGARETTE LIGHTER AND CLOCK
Wiring Diagram—HORN—(Cont’d)
EL-205
Page 1338 of 2267
YEL886C
HORN, CIGARETTE LIGHTER AND CLOCK
Wiring Diagram—HORN—(Cont’d)
EL-206