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
Page 1339 of 2267

System Description
The rear window and door mirror defogger system is controlled by the time control unit. The rear window
and door mirror defogger operates only for approximately 15 minutes.
Power is supplied at all times
to rear window defogger relay
With the ignition switch in the ON or START position, power is supplied
to rear window defogger relay
to time control unit terminal1
through 10A fuse [No.26, located in the fuse block (J/B)].
Ground is supplied to terminal
14of the rear window defogger switch through body groundsM6,M28and
M26.
When the rear window defogger switch is turned ON, ground is supplied
through terminal16rear window defogger switch
to fuse block (J/B) terminal9C.
through time control unit terminal3.
Terminal
13of the time control unit then supplies ground to the rear window defogger relay.
With power and ground supplied, the rear window defogger relay is energized.
For rear window defogger system, power is supplied
through 15A fuse [No.14and15, located in the fuse block (J/B)].
to rear window defogger.
For door mirror defogger system, power is supplied
through 10A fuse [No.1, located in the fuse block (J/B)].
to door mirror defogger.
The rear window and door mirror defogger have an independent ground.
With power and ground supplied, the rear window and door mirror filaments heat and defog the rear win-
dow and door mirrors.
When the system is activated, the rear defogger indicator illuminates in the rear window defogger switch.
Power is supplied
to terminal13of the rear window defogger switch
from 10A fuse [No.1, located in the fuse block (J/B)].
Terminal
14of the rear window defogger switch is grounded through body groundsM6,M28andM26.
REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER
EL-207
Page 1340 of 2267
Schematic
YEL182C
REAR WIN-
DOW DEFOG-
GER SWITCH : With door mirror heater
FUSEFUSE
REAR WINDOW
DEFOGGER
CONDENSER
DOOR MIRROR HEATER
(PASSENGER SIDE)
DOOR MIRROR HEATER
(DRIVER’S SIDE)
TIME
CONTROL UNITREAR WIN-
DOW DEFOG-
GER RELAY BATTERY IGNITION SWITCH
ON or START
FUSE
REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER
EL-208
Page 1341 of 2267
Wiring Diagram—DEF—
YEL183C
IGNITION SWITCH
ON or START
FUSE
BLOCK
(J/B)
To EL-DEF-03 Refer to EL-POWER.
: With door mirror heater
: 4 door models and
5 door hatchback models
: Wagon models
OFFON
INDICATOR
LAMPREAR WIN-
DOW DEFOG-
GER SWITCHREAR WINDOW
DEFOGGER
RELAY
Next page
: This connector is not shown in“HARNESS LAYOUT”of EL section.REAR WINDOW
DEFOGGER
REFER TO THE FOLLOWING
FUSE BLOCK - Junction Box (J/B)
FUSE BLOCK - Junction Box (J/B) REAR WINDOW
DEFOGGER
CONDENSER TIME
CONTROL
UNIT BATTERY
BATTERY
REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER
EL-209
Page 1342 of 2267
YEL343B
L/R
L/R
1B1
BB412
WB4431
2 BB
B411 3:
:
B R/W
BB
B44
2 1 L/R R/W
:
L/R L/R
3
2 1 L/R B
:
1B44
L/R
B593 B
B1201
B
B59 :-3
-1 ,B59 -2
2B3B
1B1
BB1202B3B
** *
*
B119*EL-DEF-02
A
D113
4D
5H
B485H 5H
D110 D103
D111
5H 4D
D103
5H
4D
4D
D115,
D111 D115 D113
B59 -1 -2 -3B59 B59
Preceding
page: 4 door models
: 5 door hatchback models
REAR
WINDOW
DEFOGGER
CONDENSERREAR
WINDOW
DEFOGGER
CONDENSER
: These connectors are not shown in“HARNESS LAYOUT”of EL section.
REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER
Wiring Diagram—DEF—(Cont’d)
EL-210
Page 1343 of 2267
YEL887C
REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER
Wiring Diagram—DEF—(Cont’d)
EL-211
Page 1344 of 2267

Trouble Diagnoses
DIAGNOSTIC PROCEDURE
SYMPTOM: Rear window defogger/door mirror
defogger does not activate, or does not
go off after activating.
CHECK REAR WINDOW DEFOGGER
INPUT SIGNAL.
1. Remove control unit from fuse block
(J/B).
2. Check continuity between control unit
harness terminal
3and ground.
OK
NG
Check the following.
Rear window defogger
switch
Harness for open or short
between control unit and
rear window defogger
switch
Rear window defogger
switch ground circuit
1. Turn ignition switch to ON position.
2. Check voltage between control unit termi-
nal
1and ground.
Battery voltage should exist.
OK
NG
Check the following.
10A fuse [No.26, located
in the fuse block (J/B)]
1. Turn ignition switch to ON position.
2. Check voltage between control unit termi-
nal
13and ground.
Battery voltage should exist.
OK
NG
Check the following.
Rear window defogger
relay
CHECK REAR WINDOW DEFOGGER
OUTPUT SIGNAL.
1. Install control unit to fuse block (J/B).
2. Turn ignition switch to ON POSITION.
3. Check voltage between fuse block (J/B)
harness terminal
1Kand ground.
NG
OK
Check the following.
Rear window defogger
filament
(Refer to EL-213.)
CHECK CONTROL UNIT GROUND CIR-
CUIT.
Check continuity between fuse block (J/B)
terminal
1Band ground.
Continuity should exist.
OK
NG
Check the following.
15A fuse [No.14 ,15 ,
located in the fuse block
(J/B)]
Rear window defogger
relay
OK NG
Repair harness or connectors.
Replace
relay or fuse.
Replace control unit.
Condition Continuity
Rear window defogger
switch is“OFF”.No
Rear window defogger
switch is“ON”.Ye s
Condition Voltage [V]
Rear window defogger
switch is“OFF”.0
Rear window defogger
switch is“ON”.Approx. 12
YEL438B
Time control unit connector
YEL439B
Time control unit connector
YEL440B
Time control unit connector
YEL441B
Fuse block (J/B) connector
YEL442B
Super multiple junction (SMJ) connector
REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER
EL-212