1998 HONDA INTEGRA relay

Circuit Diagram
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UNDER-HOOD FUSEiRELAY 80XIGN TIONSWITCHUNDER-DASHFUSE/RELAY BOX
. TRANSMISS]ONCONTROLMODULE (TCM)
/;; l-^--;;;;lw--BLh ---wrl f ,:+ BLK/E- t.d\o-ft\---l
I t,;:'*'
IVECM
f7
ILT GRN/BLK
YEUBLU
(n lhe gauqe assembly)D4
TRANSMISSIONCONTROLMODULErrcM)
f7
IIGRN/BLK
c6c7c8 lc9NTERLOCKCONTROLUNIT (
f7
IGRNMHT
BLK
TRANSMISSION CONTROLMODULE TICM)GRNCRN]BLULTGRNMHT
GRN/YEL
No l9 (104)FUSE
f7
IRED/BLK
A?TGEARPOSITION SWTCHRED
II
I
Y?
DASH LIGHTSBFIGHTNESSCONTROLLER
BLK
oro,G40lG20lG401
A/T GEAH POSITION NDICATOR DIMMING C RCUIT
A/T GEARPOS TIONCONSOLELIGHT(1.4w)
/ ,/ t2
{,
23-141

{CONNECTOR "D": View from wire side of lemale
terminalsYEL/BLU
CONNECTOR "8": View from wire side ot female
terminals
No.Wire
No.Wire
Test condition
Test condition
Test condition
Test: Desired result
Test: Desired result
Possible cause il result is not obtained
Possible cause if result is not obtained
Possible cause iI lesult is not obtained
)
CONNECTOR "C": View from wile side ot female
terminals
LT
No.Test: Desired result
1BLKUnderall conditionsCheck {or continuity to ground:
There should be continuity.
Poor ground (G201 , G401)
An open in the wire
2YEL
lgnition switch ON (ll)Check for voltage to groundl
There should be battery voltage
Blown No. 25 (7.5 A) fuse in the
under-dash fuse/relay box
An open in the wire
RED/BLK
1
R E D/BLK
ano
RED
Combination light
switch ON and dash
lights brightness control
dial on full bright
Check for voltage between
RED/BLK and RED terminalsl
There should be battery voltage.
. Faulty dash lights brightness control
system. An open in the wire
1
GRN/WHT
Shifl lever in position @NOTE: Don't push the
brake pedal.
Check {or continuity to ground:
There should be continuity.
NOTE: There should be no
continuity in any other position.
Faulty A/T gear position switch
Poor ground (G201 , G401)
An open in the wire
GRN/RED
GRN
GRN/BLU
GRN/YEL
5nrrI rever In pos[ron ll
shl, b*|' il. p"1,!lN
)nrn rever In posrron url
snt r""-. r p*;ir" tZ-
LT.
GRN/WHTShift lever in position f
2GRN/BLK
lgnition switch ON (ll)
and shift lever in any
position except E
Check for voltage to ground:
There should be battery voltage
lor two seconds after the
ignition switch is turned ON (ll),
and less than 'l V two seconds
later.
. Faulty transmission control module(TCM)
. An open in the wire
3LT-
G RN /BLK
lgnition switch ON (ll)Check lor voltage to ground:
There should be battery voltage.
. Faulty transmission control module
(TCM) or ECM'An open in the wire
23-143

lnterlock System
Circuit Diagram
NOTE: Different wires with the same color have been given a number suflix to distinguish them (for example,cRNA/VHT I and cRNMHT ' are not the same).
WHT/ BLK .-- WHI
cnrruvgr'
+. BRAKE LIGNTS.CSUISE CONTROLUNIT. ABS COIITROL UNIT' ECM
INTEBLOCKCONTROLUNIT
A]'IGEARPOStTIONINOICATOR
v
t,
UNDER-HOOO FUSEi RELAY BOX
N0.41 (100A) N0.42 (404)
YEUBLUcnrivrr '
WHT/BLU
KEYINTERLOCKswtTcH
THBOTTLEPosrT|0N (TP)SENSOR
f7
IRED/BLK
(Cjl :in posiron E t
23-14A

){r/
Control Unit Input Test
1. Disconnect the 8P connector from the interlock con-
trol unit.
2. lnspect the connector and socket terminals to be
sure they are all making good contact.
a It the terminals are bent, loose or corroded, repair
them as necessary, and recheck the system.
a lf the terminals look OK, make the following in-
put tests at the connector.- lf a test indicates a problem, tind and correct
the cause, then recheck the system.- lf all the input tests prove OK, substitute a
known-good control unit, and recheck the sys-
tem. lf the check is OK, the control unit must
be faulty; replace it.
NOTE: lf the shift lock solenoid clicks when the igni-
tion switch is turned ON (ll) and you step on the
brske Dedal (with the shift lever in E). the shift lock
system is electronically normal; if the shift lever
cannot be shifted from fl, test the 46 gear position
switch as described on page 23-142, and see sec-
tion 14.
Shift Lock System:
No. Wire Test condition
No. WireTest condition
Test: Desired resultPossible causs it result is not obtained
Test: Dcsired lesultPossible cause it result is not obtainsd
INTERLOCK CONTROL UNIT
GRN/wHT2
1WHT/RED
lgnition switch ON (ll)
Brake pedal pushed
Check for voltage to ground:
There should be battery voltage
Blown No. 52 {20 A) fuse in the
under-hood fuse/relaY box
Faulty transmission control module
(TCM)
Faulty ECM
Faulty brake switch
Faulty throttle position (TP) sensor
An open in the wire
lgnition switch ON (ll)
Brake pedal and
accelerator pushed at
the same me
Check for voltage to ground:
There should be less than
battery voltage.
tGRN/WHT'
Shift lever in position
E
Check tor continuity to ground:
There should be continuity.
Faulty A/T gear position switch
Poor ground {G20'1 , G401)
An open in the wire
3YEL/BLK
lgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage
Blown No. 25 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty shift lock solenoid
An open in the wire
Key Int€rlock Systcm:
BLKUnder all conditionsCheck lor continuity to ground:
There should be continuitY.
. Poor ground (G201, G401). An open in the wire
GRNiWHT'
Shift lever in position
E
Check for continuity to ground:
There should be continuity.
Faulty A/T gear position switch
Poor ground {G2O1, G401 }
An open in the wire
3
WHT/YELlgnition switch turned
to ACC (l) and the key
pushed in
Check tor voltage to ground:
There should be battery voltage.
Blown No. 52 (20 A) fuse in the
under-hood fuse/relaY box
Faulty steering lock assemblY
(key interlock solenoidl
An open in the wireWHT/BLU
4WHT/BLK
Shift lever in position
E and push button
pressed
Check for continuity to ground:
There should be continuity.
Faulty pafking pin switch
Poor ground (G2O1, G4O 1)
An open in the wire
Shift lever in position
E and push button
reteaseo
Check for continuity to ground:
There should be no continuity.
Faulty parking pin switch
Short to ground
An open in the wire
I'
23-149

Integrated Control Unit
Circuit Diagram
Description
An integrated control unit, located in lhe left kick panel, integrates the lunctions of the key-in/seat belt r€minder , side
marker light llasher, wiper/washer, lights-on reminder, rear window delogger timer, brake system light bulb check, and
engine oil pressure indicator flasher circuits.
NOTE: Different wires with the same color have been given a nu mber suflix to distinguish them (for example,
GRN/RED I and GRN/RED' are not the same).
REAR WINDOWDEFOGGERRELAYREAF WINDOWDEFOGGENIND CATORL GHT
f-7
IIBLU/YEL
WHT/ BLK
WHT/ REO
+WHT
WNDSHIELDWIPERiWASHER SWITCH
INT OFF/INT
f7 f7
tltlYEUBLU 8LU/GRN
BLUMHT
J
wtN0sHr€10WIPERMOTOR
UNDER.DASH FUSARETAY BOX
F rmecnlleo counoL ultr
YEUBLU
rYEUBLU
YEUREO YEUREO
tl
IYEURED
LOWENGINEOIIPRESSUREINOICATOBLIGHT
; WINDSHIELD' WIPERMASHERI swlTcH
tf7IVtlYEL
J
FEARwtN00wOEFOGGERSWITCH
WHTIBLU
J
VOTTAGEREGULATOR(ln allernatol)
BLK
G441
ENGINEolLPRESSUREswrTcH
UNDER-NOOO FUSE/RELAY BOX
1.6
:6
t;t-L
i
"'i'- 'i*-
|
I Il
I vi: WINDSHIELO II WASHEB I
L__ "oto: _ __l(*)
n
s
s
,]
23-152
(*) :Wilh combined washer-wiper operalion

CUT RELAY
BruiBLK -> i",rrrl%.^ ,*,r.,.
SEAT BELTREM]NDEBLIGHT(1.4w){
INTEGRATEO CONTROL UNIT
FRONTPASSENGER'SDOORSWITCH
23-153

Integrated Control Unit
Input Test
Remove the dashboard lower cover and knee bolster,
then disconnect the 15P connector trom the integrated
control unit.
Remove the integrated control unit lrom the under-dach
fuse/relay box.
Inspect the connector and socket terminals to be sure
they are all making good contact.
a lf the terminals are bent, loose or corroded, repair them
as necessary, and recheck the system.
a lf the terminals look OK, make the lollowing input tests
at the connector and under-dash luse/relay box.- ll any test indicates a problem, find and correct the
cause, then recheck the system.
lf all the input tests prove OK, the control unit must
be faulty; replace it.
15P CONNECTOR
NOTE:
a Ditferent wires with the same color have been given
a number suffix to distinguish them (lor example,
GRN/BLU1 and GRN/BLU, are not the same).
a Do not disconnect any connectors on the under-dash
fuse/relay box except the integrated control unit.
wire side
YEL/BLU
A------>G
H ----- - ->N
23-154

A B C D *E F G
YEL/BLU
View from wire side
All Systems:
No. TerminalTest condition
Rear Window Defogger Timel System:
No. WireTest condition
Test: Desired resultPossible cause if result is not obtained
Test: Desired resultPossible cause it lesult is not obtained
Test: Desired resultPossible cause if result is not obtained
(cont'd)
)
Inte.mittent Wiper Relay System:
Wire/
No. TerminalTest condition
*BLK/GRN
1NUnder all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground (G201, G401). An open in the wire
2
Under all conditionsCheck Jor voltage to groundl
There should be battery voltage
. Blown No. 43 (7.5 A) fuse in the
under hood fuse/relay box
'An open in the wire
3F
lgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage.
. Blown No. 25 (7.5 A) fuse in the
under dash fuse/relay box
. An open in the wire
1YEL
Delogger switch
pusneo
Check for continuity to ground:
There should be continuity as
the switch is pushed.
Faulty defogger switch
Poor ground (G201, G401 )
An open in the wire
2BLU/YEL
lgnition switch ON (ll)Connect to groundr The rear
window defogger should work
and the defogger switch indica
tor light should come on.
Blown No. 16 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty delogger relay
Blown bulb
An open in the wire
YEL/BLU
lgnition switch ON (ll)
and windshield wiper
switch INT
Check lor voltage to ground:
There should be battery voltage
Blown No.26 (20 Ai fuse in the
under-dash fuse/relay box
Faulty windshield wiper switch
An open in the wire
2
BLU/WHT
and
BLU/GRN
Windshield wiper
switch OFF or INT
and wiper blades in
park position
Check for continuity between
the BLU/WHT and BLU/GRN ter
minals: There should be
contrnurty.
Faulty windshield wiper switch
Faulty windshield wiper motor
An open in the wire
3lgnition switch ON (ll)Check lor 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 lor voltage to ground:
There should be battery voltage.
Faulty windshield washer switch
An open in the ware
v*: With combined washer-wiper oDeration
23-155