1998 HONDA INTEGRA oil pressure

Connector ldentification and Wire Harness Routing
Engine Wire Harness (B18Cl enginel
Connectol ol
Terminal
Number of
CavitiesLocationConnects toNotes
c 101
c102
c103
c104
c105
c106
c101
c108
cr09
c110
c'r 11
cl12
c1't3
c114
c115
c116
cl17
c118
c119
c119
c120
cI2'l
cl24
c126
c127
cl31
c132
c133
c134
10
14
3
1
2
1
2
10
2
'I
3
2
2
2
I
1
2
2
?
3
2
14
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side ol engine compartment
Right side of engine compartment
Righr side oI engine
Right side of engine
Transmission
Middle of engine
Middle of engine
Right side of engine
Right side of engine compartment
Middle rear of engine compartment
Middle of engine
Middle of engine
Middle of engine
Middle of engine
i/iddle of engine
Left side ot engine
Lelt side ot engine
Middle ot engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Left side of engine companment
Left side of engine compartment
Lelt side of engine compartment
Right side of engine
Right side of engine
Middle of engine
Middle of engine
lvlain wire harness (C221 )
Main wire harness {C222)
Main wire harness (C223)
Main wire harness (C220)
Starter solenoid
Engine coolant temperature (ECT)
sensor
Engine coolant temperature (ECT)
gauge sending unit
Back-up light switch
Distributor
Crankshalt speed fluctuation (CKFI
sensor
Engine coolant temperature {ECT)
switch
Vehicle speed sensor (VSS)
Primary HO2S
MAP sensor
Throttle position {TP) sensor
ldle air control (lAC) valve
EVAP purge control solenoid valve
Engine oil pressure switch
Alternator
Alternator
Intake air temperature llAT) sensor
No. 1 fuel injector
No. 2 fuel injector
No. 3 tuel injector
No. 4 tuel injector
Junctron connector
Engine compartment wire harness(c304)
Engine companment wire harness(c30s)
VTEC solenoid valve
VTEC oil pressure switch
Knock sensor (KS)
Intake air bypass {lAB) control sole-
noid valve
USA
Canada
T101
r 102
Left side ot engine
Right side of engine compartment
Alternator
Under-hood fuse/relay box
G 101Right side of engineEngine ground, via engine wire
naaness
23-18

Gauge Assembly
Component Location Index
VEHICLE SPEED SENSOR {VSSITest, page 23-128Input Test, page 23-128Replacement, page 23-130
GAUGE ASSEMBLYGauge Location Index, page 23-12:|fndicator Location Index. page 23-121Terminal Location Index, page 23-121Eulb Location, pag6 23-122Disassembly, page 23-127Removal, paqe 23-126
FUEL GAUGE SENDING UNITTest, page 23-132Replacement, page 23-132
PARKING BRAKE SWNCHTest, page 23-135
ARAKE FLUID LEVEL SWITCHTest, page 23,135
ENGINE OIL PRESSURE SWITCHTest, p6ge 23-130
ENGINE COOLANT TEMPERATUFE IECTI GAUGESENOING UNITTest, page 23-134
23-120

I
rIGauge Assembly
BulbLocations
RIGHT TURN SIGNAL INOICATOR LIGHT ('I.4 WI
BRAKE SYSTEM LIGHT I1.4 WI
DOOR-OPEN INDICATOR LIGHT (1.4 WI
*ABS/SRS INOICATOR LIGHT (1.' W)
LOW FUEL INDICATOR I-IGHT I3.4 W)
SEAT BELT REMINDER LIGHT {1.4 WI
HATCH-OPEN INDICATOR LIGHT {1.4 W}: HarchbackTRUNK'OPEN INDICATOR LIcHT (1.4 W): Sedan
+: On the ABS/SRS printed circuit board
LEFT TURN SIGNAL INDICATOR LIGHT (1.4 WI
CHARGING SYSTEM LIGHT {1,4 WI
A/T GEAR POSITION INDICATOR LIGHT (1.'t2 W x 7)
HIGH BEAM INDICATOR LIGHT I1 .4 \A,
LOW ENGINE OIL PRESSUREINDICATOR LIGHT (1.4 W}
MALFUNCTION INDICATOR LAMP(MtLl (1.4 Wl
LIGHTS13.4 W x 3)REMINDER LIGHT I1.4 WI
cRursE LTGHT | 1.4 Wt
23-122

1. Disconnect the 3P connector from the vehicle speed
sensor (VSSl.
2. Remove the two mounting bolts, then remove the
VSS.
3P CONNECTOR
BOLT9.8 N.m(1.O kgf.m,22 tbt,ltl
DRIVE LINK
3.Install in the reverse order of removal.
NOTE: The VSS drive link is a very small part;
careful not to lose it.
DC
Vehicle Speed Sensor (VSS)
Engine Oil Pressure
lndicator System
ReplacementEngine Oil Pressure Switch Test
23-130
E-_
1 . Remove the YEL/RED wire trom the engine oil pres-
sure swlrcn.
ENGINE OIL PBESSURE SWITCH
Check for continuity between the positive terminal
and the engine (ground) with the ignition switch OFF.
a lf there is continuity, go to step 3.
a lf there is no continuity, replace the switch.
Check lor continuity again, this time with the engine
running.
a lf there is continuity, go to step 4.
a lf there is no continuity, the switch is OK.
Make sure engine oil level is OK, then check engine
oil pressure (see section 8).
a lf engine oil pressure is OK, replace the switch.
a lf engine oil pressure is low, check the engine oil
pump (see section 8) and, iI necessary, replace it.
2.
3.
POSITIVE TERMINAL

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
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.

)
Engine Oil Pressure
Indicator System
Description
NOTE: Refer to page 23-152 for the circuit diagram ofthe engine oil pressure indicator flasher. and to page 23
156 for the input test of the flasher circuit.
The low engine oil pressure indicator light works in twoways. lt will flash continuously following a momentaryloss ol oil pressure, or it will go on and stay on wath a
complete loss of oil pressure.
When the engine first starts, before oil pressure rises
above 29.4 kPa (O.3 kgf/cmr, 4.3 psi), current flows
through the low engine oil pressure indicator light andthe oil pressure switch to ground. This tests the circuit.
With the engine running, voltage is applied to the Ilash-er circuit of the integrated control unit. With normal oilpressure, the oil pressure switch is open and the low en-gine oil pressure indicator light does not operate. lf the
oil pressure switch closes momentarily (more than O.5
seconds). but then opens again, terminal "YEL/RED" will
sense ground through the switch- The integrated con-trol unit will then provide and remove ground tor the low
engine oil pressure indicator light through terminal"YEL/RED". The light will flash on and off untilthe igni
tion switch is turned to "OFF".
lf engine oil pressure talls below 29.4 kPa (O.3 kgf/cmr,
4.3 psi) and does not increase, the oil pressure switchwill stay closed. The low engine oil pressure indicator light
will go on and stay on.
NOTE: Refer to page 23-130 for the engine oil pressure
switch test.
I
23-159

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Contents
How to Use This l\.4anual 1Circuit Schematics (see Circuit Index)Fuse/Relaylnformation 6ComponentLocation Photographs 201
Connector Cavity Numbers 202Connectorldentification 203
Ground-to-Components Index 6-6Wire Harness Routing 203Circuit ldentification lor ln-Line and Fuse Box Connectors
Circuit Index
Air conditionerAir delivery 61Blower controls 60Compressor controls 62Fans 63Anti-lock brake system (ABS) 44A/T gear position indicator 89Automatic transmission controls'98199 models 39'00 models 39-4Back-up lightsHatchback 110Sedan 110- 1Brake system indicator light
USA 71Canada 71-1Brake lightsHatchback 110-6Sedan 110-7Cargo area light (Hatchback) 114-3Ceiling light 114-2Charging system 22Cigarette lighter 155
Clock 154Condenser fan 63Console lights 114Cruise control 34Dash lights 1 14Daytime running lights 110-8Door open indicator 114-2Engine coolant temperature gauge 81Engine oil pressure indicator light 72Fog lights 110-14Front parking lights 110-11Front side marker lights 110-11Fuel gauge 81Fuse/relay boxUnder-dash 6Under-hood 6-3Under-hood ABS 6-5Gauges 81Glove box light 114Ground distribution 14Ground-to-Componentsindex 6-6Hatch open indicator '114-3
Hatch opener '134
Hazard warning lightsHatchback 'l l0-2Sedan 110-4Headlights 1'10-8Headlight switch 100HeaterAir delivery 61Blower controls 60Fanswith A,/C 63without A,/C 63-2Horns 40lgnilion key reminder 73lgnition system 20
204
lmmobilizer system ('00 model) 132lndicators 80Integrated control unit 70Interlock system'98199 models 138'00 models 138-1License plate lightsHatchback 110-12Sedan 110-13Lights-on reminder 73Low fuel indicator light 74l\,4aintenance reminder light 83l\iloonroof 122Odometer 81-1Power antenna 151Power distributionBattery to ignilion switch, fuses, and relays
Fuses to relays and components 10-2Power door locksHatchback '130
Sedan 130-2Power mirrorsHatchback 141Sedan 141-1Power windowsHatchback 120Sedan 120-2Programmed fuel injection system (PGM-Fl)'98199 models 23'00 models 24Radiator fanwith tuC 63without A,/C 63-2Rear parking lightsHatchback 110-12Sedan 110- 13Rear window defogger 64Seat belt reminder 73Security system 133Speedometer Il-1Spotlights 114-2Starting syslemAutomalictransmission 21l\.4anualtransmission 21-1Stereo sound system 150Supplemental restraint system (SRS) 47Tachometer 81- 1TaillightsHatchback 110-12Sedan 110-13Trailer lighting conneclor 118Trunk lid open indicator 114-3Trunk light (Sedan) 114-3Turn signal lightsHatchback 110-2Sedan 110-4Vehicle speed sensor (VSS) 33Wiper/washerFront 91Rear 92
10
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12Fg oAmerican Honda Motor Co., Inc. - All Rights Reserved Service Communications 275 pages