fuse box ACURA INTEGRA 1998 Service Repair Manual

){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

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

Integrated Control Unit
lnput Test (cont'd)
YEL/BLU
View from wire side
'With combined washer-wiper operation
Engine Oil Pressure Indicator Flasher System:
Wire/
No. TerminalTest condition
Key-in/Seat Belt Reminder System:
No. WileTest condition
Testi Desired result
Test: Desired result
Possible cause if result is not obtainsd
Possible cause if fesult is not obtained
*BLK/GRN
1Engine runningCheck for voltage to ground:
There should be battery voltage.
. Faulty charging system. An open in the wire
2YEL/RED
lgnition switch OFFCheck for continuity to ground:
There should be continuity.
. Faulty engine oil pressure switch. An open in the wire
lgnition switch ON (ll)Check indicator light. It the light
does not come on, attach the
YEL/RED terminal to groundl
The light should come on as the
ignition switch is turned ON.
. Blown bulb. An open in the wire
Start the engine.Check tor voltage to ground:
There should be battery voltage
lnsufticient oil
lmproper lubrication
Faulty engine oil pressure switch
1GRN/BLUDriver's door openCheck for continuity to ground:
There should be continuity.
. Faulty driver's door switch. An open in the wire
2
LT GRN/
RED
Front passenger's door
swrlcn open
NOTE: Before testing,
remove No. 43 {7.5 A)
fuse from the under-
hood fuse/relay box.
Check for continuity to ground:
There should be continuity.
. Faulty front passenger's door switch'An open in the wire
3LT BLU
lgnition key inserted
into the ignition switch
Check for voltage to ground:
There should be 1 V or less.
Faulty ignition key switch
Poor ground (G2O1, G401 l
An open in the wire
4RED/BLU
lgnition switch ON (lll
and driver's seat belt
unbuckled
Check for voltage to ground:
There should be 1 V or less.
Faulty seat belt switch
Poor ground (G551l
An open in the wire
NOTE: Refer to page 23-133 for the seat belt switch test.

M
lgnition switch at
START iIII)
Check for voltage to ground:
There should be battery voltage.
Blown No.31 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty clutch interlock switch or
starter cut relay (M/T)
Faulty neutral position switch (A/T)
An open in the wire
2D
lgnition switch ON {ll).
brake fluid reservoir
full, and parking brake
tever oown
Connect to ground: Brake
system light should come on.
. Blown brake system light. An open in the wire
Bulb Check System (brake system light)
No. Terminal Test conditionTost: Desiled resultPossiblo cause if lesult is not obtained
)
)
23-157

Lighting System
Circuit Diagram (USA)
R€O/BtK
I
REO/BLKIII
I
. OASH LIGHTSBFIGI.ITNESSCONTROLLER. DASH TIGHTS
RED/CRN
I
Ailsurax
Yller,l
IBL(
I
I
I-l
G201G401
. PANK NG L GNTS.TA LL GHTS. LICENSE PLATELIGHTS
UNDER.HOOD FUSE/RELAY BOX
RED]BtU
N0.21(104)No.5{10A)
III No22 I No4( lroA) ( {1oA)
IT
INo30 :(7.5A) (
I
N0.3200A)
8LK
I
G20lG40l
23-162

UNDER.HOOD FUSE/RELAY BOX
No 41 {100A) N0.42 (40A)
,/ |\
\--, ({c)
HEADLIGHT
Circuit Diagram (Canada)
BATTEFY
@-**
I I :i,ff'*''"
I CoNTFOL UN|TI . INTEGBATED
l-v^"
tl
tlREDAVHT GRN/RED
GRN/FED
L
lt ))
Yro^,
I iivP,
I
swrrcH
BLK
I
I-l
G301
RED/GFN
tGRN/RED
A
Y*r*ro
I
3Ai{5"
I
I
I
DAYTIME BUNNINGL]GHIS RESISTOR
UNDER.DASHFUSE/FELAY BOX
) No.21
i
uoo') N0.20{JOA))'
) N0.18(7.5A))'
II
lrrt,
llrffi ltlrr
INo.3o Q
(7.sA) . (
I
N0.32(104)
RED GqN RED YE- RED BL- REDTVHT FED/BLK REO/8LK WHT/YEL YEUBLK
| + +ll
I
i*n[i+'i .ffi$liilTl
II ri---J- i---F BEDE-U +1 4- l^ |
l,,oo,* *qff
.'""0
{36['45,1'il]''
23-163

Tsst conditionTest: Desiled resultPossible cause it result is not obtained
)
BLKUnder all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground (G201 , G40l ). An open in the wire
2WHT/YEL
Under all conditionsCheck for voltage to ground:
There should be battery voltage.
. Blown No. 20 (10 A) fus€ in the
under-dash fuse/relay box. An open in the wire
YEL/BLK
lgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage.
Blown No. 18 (7.5 A)fuse in the
under-dash fuse/relay box
Faulty ignition switch
An open in the wire
RED/WHT
Combination light
switch in "=D" position
Check for voltage to ground:
There should be battery voltage.
Blown No. 48 (40 A) fuse in the he
under-hood fuse/relay box
Faulty combination light switch
An open in the wire
WHT/RED
Combination light
switch is OFF; connect
a jumper wire between
the YEL/BLK and
WHT/RED terminals,
then turn the ignition
switch ON (ll).
Left and right headlight (high
beaml should be on but dim, and
high beam indicator light should
come on.
Poor ground (G20'1, G4O1, G301)
Blown bulbs
Faulty daytime running lights
resrstor
An open in the wire
6GRN/RED
lgnition switch ON (ll).
brake fluid reservoir
full, and parking brake
levef oown
Connect to ground: The b.ake
system light should come on.
Blown No. 25 (7.5 A) fuse in the
under-dash fuse/relay box
Blown brake system light
An open in the wire
'1RED/GRNParking brake lever upCheck for continuity to ground:
There should be continuity.
. Faulty brake lever switch. An open in the wire
23-165

J
)
'1.
3.
NOTE: Be careful not to damage the controller and the
instrument panel.
Remove the instrument panel from the dashboard
(see page 23-126).
Remove the dash lights brightness controller from
the dashboard, then disconnect the 3P connector.
Inspect the connector and socket terminals to be
sure they are all making good contact.
a lf the terminals are bent, loose or cortoded, repair
them as necessary, and recheck the system.
a It the terminals look OK, make the following in-
put tests at the connector.- lf any test indicates a problem, find and cor
rect the cause, then recheck the system.
It all the input tests prove OK, the dash lights
brightness controller must be faulty; replace it.
3P CONNECTOR
View lrom wire side
Possible cause if result is not obtainedNo.WireTest condition
CONTROLLEB
Test: Desired resull
BLK
REO
BLKUnder all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground (G201 , G4O1l. An open in the wire
2REDi BLK
Headlight switch ONCheck for voltage to ground:
There should be battery voltage
Blown No.30 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty combination light switch
An open in the wire
3REDHeadlight switch ONConnect to ground: Dash lights
should come on full bright.
. An open in the ware
l-
)
23-179