fog light HONDA INTEGRA 1994 4.G User Guide

Integrated Control Unit
Circuit Diagram
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An integrat€d control unit, located in the left kick panel, integratss the functions of tho keyin/seat beh r6mind€r, sido
markar light {lasher, wiper/washer, lights-on r6minder, rear window dsfogger timer, brak€ system light bulb check, and
enging oil pressure indicator flasher circuitE,
NOTE: Difforent wires with the same color have be6n given a numbor suffix to distinguish them (for Example,
GRN/RED1 and GRN/RED' are not the same).
WNOSHIELD WIPER/WASHER SWITCH
IMT OFFiINT
I
II
IIIIIIIIIIII
YEUEE
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t
P
UNOER - DASH FUS€/RETAY BOX
r NTEGRATED COI{TROI UNIT
t-0wErGrilE 0|lPRESSI'REINDICATORLIGI{T
WINDSHIELOWIPERAVASHERswtTcH
tr-/
IBLK/GRN BI
WINDSHIELOWIPERMOTOR{Asl
VOLTAGEREGULATOR{ln ahamator,
UNOER- HOOD FUSE/RELAY 8OX
I
r3
r8relit;rBt5I
23-144
lr ) : With combinod washef-wip€r oporation

1NUnder all conditionsCheck for continuity to ground:
There should be continuitv.
. Poor ground (G201, G4O1). An open in the wire
Under all conditionsCheck for voltage to ground:
There should be battery voltage.
. Blown No. 3 (7.5 A) fuse in the
under-dash fuse/relay box. An oDen in the wire
F
lgnition switch ON {ll)Check for voltage to ground:
There should be bsttery voltage
. Blown No. 15 (10 A) tuse in the
under-dash fuse/relay box. An open in the wire
All Systems:
No. TsrminalT€st condition
R€ar Window Detogger Timer System:
No. WireTost condition
Intermittent Wip6r Relay System:
Wir€/
No. TerminalTest condition
T6st: Desired rosult
Test: Dosiled result
T€Et: Desir6d result
Possibla cause it result is not obtained
Possible cause il rosult i8 not obtained
Possiblo cause if rosult is not obtained
(cont'd)
IYEL
Defogger switchpushedCheck lor continuity to ground:
There should be continuity asthe switch is Dushed.
Faulty defogger switch
Poor ground {G201, G4O1}
An open in the wire
BLUiYEL
lgnition switch ON (ll)Connect to ground: The rear
window defogger should work
and the detogger switch indica-
tor light should come on.
Blown No. 13 {7.5 Al fuse in the
under-dash fuse/relay box
Faulty defogger relay
Blown bulb
An open in the wire
,|YEL/BLU
lgnition switch ON (ll)
and windshield wipet
switch INT
Check tor voltage to ground:
There should be battery voltage
Bfown No. '14 l2O Al fuse in the
under-dash fuse/relay box
Faulty windshield wiper switch
An oDen in the wire
BLU/WHT
ano
BLUiGRN
Windshield wiper
switch OFF or INT
and wiper blades inpark position
Check for continuity between
the BLUMHT and BLU/GRN ter-minals: There should be
continuity.
Faulty windshield wiper switch
Faultv windshield wiDer motor
An open in the wire
.Elgnition switch ON (lllCheck for voltage to ground:
There should be battery voltage.
. An open in the wire
*BLK/GRNlgnition switch ON (ll)
and windshield washer
motor switch ON
Check for voltage to ground:
There should be battery voltage.
. Faulty windshield washer switch. An open in the wire
*: With combined washer-wiper operation
23-147

UNDER. HOOD FUSE/REIAY 8OX
Dash Lights Brightness Gontrol
Circuit Diagram
COMBII{ATIONLIGI{T SWTTCH
wnr-@- neorenn
REO/BLK
. GATJGE UGHTS. CruEE COITNOL DIMMING CIRCUTT. A/T GEAR POSMON N(ICATORDIMMII{G CIRCUIT' HAZAnD WARi{|NG S:WltCH LIG}fr. REAR WINOOW OEFOGGER SiWTTCH UGHT. CFUISE COMTROT MAIN S,IVITCH UGHT. A,IT GEAN POSITION CONSO|.! UGHT. HEATER COMTNOL PANEL UGHTS
TR€D
BI.K
G201G40t
23-170
UNDER- DASHFUSE/NETAY 8OX
IEF

Rear Window Defogger
Component Location Index
CAUTION:
a All SRS olectrical wi ng ham€$6s are covoled with
y€llow insulation.
B6foro disconnocting any part of ths SRS wire har-
ness. connoct tho short connector(s).
Roplacs the ontire affectod SRS harness assombly if
it has an open circuit or damagcd wiring.
REAB WINDOWDEFOGGER RELAYTest, page 23-68
REAR WINDOWDEFOGGER SWITCHRemoval, page 23-209Test, page 23-2Og
REAR WINDOW DEFOGGERTest, page 23-210
UI{DER.DASH FUSE/RELAY BOX
REAR WINDOW DEFOGGER TIMER CIRCUIT
{ln the integrated control unil)fnput Test, page 23-147
SRS MAII{ HAR'{ESS
The rear window defogger is controlled by the integrated control unit, Pushing the defogger switch in the instrument
panel it sends a signal to the defogger time. in the integrated control unit, and the detogger stays on tor 25 minutes
or until the ignition switch is turned off. The indicator light in the switch comes on when the deJogger works.
23-206

Rear Window Defogger
Troubleshooting
NOTE: The numbers in the table show the troubleshooting sequence.
'1: Hatchback'2: Sedan
Item to be inspected
Symptom
o
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o!
zi
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o.-
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go
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5.
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!
ooooo
=3
oEDo
o
o
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g8
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o5
Defogger works, but indicator
light does not go on.1BLKTYEL oT BLU/YEL
Defogger does not work and
indicator light does not go on.122G201
G401YEL, BLUfYEL or BLK/YEL
Defogger does not work, but
indicstor light goes on.1423'1i G771',: G5O3
BLU|YEL or BLKIYEL
BLK/GRN oT BLKMHT
Defogger-on time is too long or
too short (normal operation time
is 25 minutes).
1
23-208
IINIilfi

Rear Window Defogger
Function Test
CAUTION: Be carelul not to scratch 01 damago ths
defogger wires with th€ tsster probe.
1 . Check for voltage between the positive terminal and
body ground with the ignition switch and the delog-
ger switch ON. There should be battery voltage.
a lf there is no voltage, check for
- laulty detogger relay.- faulty defogger switch.- faulty integrated control unit.- an open in the BLK/GRN wire
a lJ there is baftery voltage, go to step 2.
NEGATIVE TERMIiIALPOSITIVE TERMINAL
Turn the rear window detogger switch OFF, Check
for continuity between the negative terminal and
body ground.
a It there is no continuity, check to. an open in the
defogger ground wire.
a ll there is continuity, go to step 3.
Touch the voltmeter positive lead to the halfway
point of each defogger wire, and the negative lead
to the negative terminal.
There should be apptoximately 6 V with the ignition
switch and defogger switch ON.
a lf the voltage is as specified, the defogger wire
is OK.
a lf the voltage is not as specified. repai, the defog-
ger wire:
lf it is more than 6 V, look for the damage on
the negative half on the grid.
- lf it is less than 6 V. iook for the damage on
the positive half of the grid.
Defogger Wires Repair
NOTE: To make an eftective repair. the broken section
must be no longer than one inch.
1 . Lightly rub the area around the break with line steel
wool, then clean it with alcohol.
2. Carefullv mask above and below the broken portion
of the defogger wire with cellophane tape.
Using a small brush, apply a heavy coat of silver con-
ductive paint extending about 3 mm ( 1/8 inl on both
sides of the break. Allow 30 minutes to dry.
NOTE: Thoroughly mix the paint before use.
Check for continuity in the repaired wire.
Apply a second coat of paint in the same way.
it drv three hours betore removing the tape.
4.
OPEN
23-210
tLet