1994 HONDA INTEGRA sensor

Overhaul
L Pull out the Ay'C thermostat sensor from the evapo-rator fins.
2. Remove the self-tapping screws and clamps fromthe housing.
3. Carefully separate the housings and remove theevaporator.
4. lf necessary, remove the expansion valve.
NOTE: When loosening the expansion valve nuts.use a second wrench to hold the expansion valve orevaporator pipe. Otherwise, they can be damaged.
Assemble in the reverse order of disassembly, and:
. feplace the O-rings with new ones at each fitting,and apply a thin coat of refrigerant oil (ND-OIL 8:P/N 38899 - PR7 - A01) before installing them.NOTE: Be sure to use the right O-rings for HFC-134a {R-134a) to avoid leakage.. install the expansion valve capillary tube withthe capillary tube in contact with the suction linedi.ectly, and wrap it with tape.. reinstall the Ay'C thermostat sensor to its originallocation.
A/C THERMOSTATTest. page 22-19
8 N.m (0.8 kgf'm, 6 lbf.ftl
CAPILLARY TUBE
5.
EVAPOAATORblow dirt out of finswith compressed air.
16 N,m 11.6 kgl.m,12 tbt.ttl
24 N.m (2.i1 kg{.m,17 rbt.ftl
EXPANSION VALVE
TAPEReplace.Make sure there is no foreign matter stuck betweenthe capillary tube and outlet line.
6 th fin trom inlet 3id6
12015 mm14.72 ! 0.2 inl
LOWER HOUSING
22-27

Electrical
Special Tools
Troubleshooting
Tips and Precautions ................................ 23-3Five-stop Tloubleshooting ..............,...-..-... Z3-sSchematic Symbols ................................_. 23-6wire Color Cod€s ..................................... 23-6Relay and Control Unit Locations
Engine Compartment .........,............ ... --. 23-7Dsshboard and Door ..,,......................... 23-gDashboard and Floor ............................. 23-t OOuaner Panel .....-.....23-12Connector ldentification and WireHarness Routing ........ 23-i 3
Index to Circuits and Systems
Airbag ............... ...-..-... 2g-26sAir Conditioning ....,.. Section 2lAltelnator ......_.............. 23-99Anti-lock Brake Systsm (ABS) Section 19Automatic Transmission Section 14Battery .............. .......... 23-66Chafging System ........... 23-98rCigalstte Lighter .....................-...-......-..-.. Z3-2O4Cfock ................. ..........23-197rcruise Controf .......--..-... 23-242Distributor .................... 23-87Fan Controls ................. 23-1ogFuel and Emissions ... Section 1i*Fuses
Under-dash Fuse/Relay Box ................... 23-48Undor-hood ABS Fuse/Retay Box ............ 23-51Under-hood Fuse/Relay Box,.................. 23-52rGauges
Engine Coolant Temperature {ECT)Gauge ................ ..23-126Fuef cauge ............... 2g-123'Gauge Assembly ....--.23-113Speedometer .....-...,,. 23-114Tachometer .....,.....-.. 23-114Ground Distribution ........ 23-60Heater ,,,........,.... ..... Section 2lrHorn ................. ........... 23-199*fgnition Switch ............. 23-70fgnition Syst6m .......-..-.. 23-A7lgnition Timing .............. 23-89Indicator Lights"A/T Gear Position .............. ................... 23-1 32B1ak6 System ...,..,..-.23-127Engine Oil Pressura .............................. _ 23-1 51Low Fuel ............ ......23-125Malfunction Indicator Lamp {MlL} ...,,. Section I l
tfnteglated Control Unit ...29-144*lnterlock System ...................................... 23-1 3gLights, Exteriol
Back-up Lights ........... 23-179Brake Lights .............. 23-t8ltDaytime Running Lights {Csnada} ........... 23-156Front Palking Lights ............................. 23-1 65Flont Side Marker Lights ....................... 23-165Front Turn Signal Lights ........................ 23-1 65*Hazard Warning Lights .........................- 2g-1A4Headlights ................. 23-t6tLicense Plate Lights .............................. 23-1 69Taillights(Harchback) .......... 23-166
{Sedan) .............. .. 23-167Lights. Inteliol
Cargo Area Light {Hatchback) ...... -.. -.. -... 23-177Ceifing Light ........-..-.23-175
Dash Lights Blightness Controt .............. 23-t70Glove Box Lighr ................................... 23-1 69Spotfighr ............ ....-.23-174Trunk Light (Sedanl ............... .............. - 23.-177*Lighting Sysrem .......-.-... 23-152:Moonroof ,,.,.......,..,,,,,.-.23-211PGM-FI Systom ........ S€crion 11Power Distribution .,.-..--..23-54Power Door Locks .............,,..................... 23-233Power Mirors ..,..,....-...- 23-216Power Relays ...........,..... 23-68Power Windows ............ 29-222*Rear Window Defogger ........,... ..........,..... - 23-20,6Reminder Systems
Key-in Remindel System ....,.............,.... 23-1 50Lights-on Reminder System ................... 23-l 5f*Maintenance Reminder system ..,,.... -.. - -. 23-.1 2gSeat Belt Reminder System ..................- 23-125*Side Markel/Turn Signal/Hazard
Ffasher System .,..,..-.23.-1A4Spark Pfugs .........-...-..... 23-97Starting System ....,,.....-. 23-73*Stereo Sound System ...,.......................,,.. 23-l gg
Supplemental Restraint System {SRS} ......... 23-265Vehicfe Speed Sensor {VSS) .............--..-.... 23-122*Wiper/Washer Systom ...............--.........-..- Zg-254
rRead SRS pi€cautions on Page 23-271 betore workingin these areas.
-+

Gonnector ldentification and Wire Harness Routing
Engine Wire Harness {B1881engine)
Connector 01
Terminal
Number of
CavitiesLocationConnects ioNotes
c10'l
c102
c103
c104
c 105
c106
c107
c108
c108
c109
c110
c111
c113
c114
c115
Lt to
c117
c118
c119
c't 20
c121
c122
c123
cl24
c125
c't26
c127
c128
c129
c130
10
14
6
1
1
2
2
8
2
3
t
1
2
2)
2
8
14
2
2
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
Right side of engine
Right side ol engine
Transmission
Transmission
Middle of engine
lvliddle of engine
Right side ot engine
Right side of engine compartment
ldiddle rear of engine compartment
Middle of engine
Middle ol engine
Middle of engine
Middle of engine
Middle ot engine
Left side of engine
lvliddle of engine
Middle of engine
Middle of engine
Middle ot engine
Middle ol engine
Left side of engine compartment
Left side of engine compartment
Left side of engine compartment
Transmission
Transmission
Transmission
Main 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
Lock-up control solenoid valve A and B
lgnition coil
Top dead center/Crankshaft
position/Cylinder position
(TDC/CKP/CYP) sensor
Engine coolant temperature (ECT)
switch
Vehicle speed sensor (VSS)
Heated oxygen sensor (HO2S)
MAP sensor
Throttle position (TP) sensor
ldle air control (lAC) valve
Evaporative emission (EVAPI purge
control solenoid valve
Engine oil pressure switch
Alternator
Intake air temperature {lAT} sensor
No. 'l fuel injector
No. 2 tuel injector
No. 3 fuel injector
No. 4 fuel injector
Junction connector
Engine compartment wire harness
(c304)
Engine compartmenl wire harness
(c305)
Shift control solenoid valve A and B
Countershait speed sensor
Mainshaft speed sensor
M/T
NT
NT
NT
T 101
r102
Lelt side oI engine
Right side of engine compartment
Alternator
Under-hood tuse/relay box
G 101Right side of engineEngine ground, via engine wire
harness
23-16

Gonnector ldentification and Wire Harness Routing
Engine Wire Harnoss (B18Cl enginol
Connoctor 01
Totminal
umbor ol
Cavitio8LocationConnecla tof{orc!
c 101
cl 02
c103
c104
c105
c106
c107
c108
c109
c110
c111
cl12
c113
c114
c115
c116
c117
c1r8
c119
c120
cl2'l
c122
c123
c124
c125
c't26
c'127
c 131
c132
c133
c134
2
J
4
3
'I
4
2
I
2
't4
1
4
10
14
,l
2
2
8
Right side of engine compartment
Right side of engine compartment
Right side ot engine comPanment
Right side of engine compartmsnt
Right side of engine compartment
Righr side ot engine
Right side of engine
Transmission
Middle ol engine
Middle oJ engine
Right side of engine
Right side ot engine comPartment
Middl€ reat of engine compartment
Middle of engine
Middle of engine
Middle ol engine
Middle o{ engine
Middle of engine
Lelt side ot engine
Middle of engine
Middle of engine
Middle ol engine
Middle ot engine
Middle of engine
Left side of engine companment
Lelt side ot engine compartment
Left side of engine compartment
Right side ot engine
Right sid€ of engine
Middle ot engine
Middle of engine
Main wire harness (C221)
Main wire harness (C222)
Main wire harness (C223)
Main wire harness (C22O)
Starter solenoid
Engine coolant temperature (ECT)
sensor
Engine coolant temperature {ECTI
gauge sending unit
Back-up light switch
lgnition coil
Top dead center/Crankshaft
position/Cylind€r Position(TDC/CKP/CYP) sensor
Engine coolant temperature {ECT)
switch
Vehicle speed sensor (VSS)
Hsated oxygen sensor {HO2S}
MAP sensor
Throttle position {TPl sensor
ldle air control (lAC) valve
Evaporative emission {EVAPI purge
control solenoid valve
Engine oil pressure switch
Alt€rnatot
Intake 8ir temperature (lAT) ssnsor
No. 1 fuel injector
No. 2 fuel iniector
No. 3 fuel injeclor
No. 4 fuel injector
Junction connector
Engine compartment ware harness
{c304)
Engine comPanment wire harness
(c305)
VTEC solenoid valve
VTEC oil pressure switch
Knock sensor (KS)
Intaka air bypass (lAB) control sole-
noid valve
T101
r102
Left side of engine
Right sid6 ot engine compartment
Alternator
Under-hood fuse/relay box
G 101Right side of engineEngine ground, via engine wire
harness
23-18

Connector ldentification and Wire Harness Routing
ABS Modulatol Unit Wile Harness
Engine Compartmont Wile Hatnaaa
Connoctor or
Torminal
Numbor ot
CaviiieELocationConnocta tooies
Ltol
c162
c163
c164
c165
c166
c't 67
c168
't4
2
2
Right side of engine comPartment
ABS modulator unit
ABS modulator unit
ABS modulator unit
ABS modulator unit
ABS modulator unit
ABS modulator unit
ABS modulator unat
Main wire harness (c21 1)
ABS Dressure switch
ABS right Jront solenoid (OUT)
ABS right front solenoid (lN)
ABS rear solenoid (OUT)
ABS rear solenoid llN)
ABS le{t front solenoid {OUT)
ABS left tront solenoid (lNl
Connector or
Tolminal
Numbd of
CaviliesLocationConnocta tot{oioE
c301
c302
c303
c304
c305
c306
c307
c308
c309
c310
c31 1
c312
c313
c314
c315
c316
c317
c318
c319
c320
20
20
1
2
14
2
1
1
2
4
2
2
1
2
2
5
Behind left kick Panel
Behind left kick panel
Behind lett kick Panel
Left side of engine compartment
Left side of engine comPartment
Left side of engine comPartment
Left side o{ engine comPartment
Left side of engine comPartment
Left side of engine compartment
Lelt side oJ engine comPartment
Middle of engine comPartment
Left side of engine comPartment
Left side oJ engine comPafiment
Behind leJt headlight
Behind left headlight
Behind left headlight
Behind left corner ot front
bumper
Behind lett corner ot front
DUmper
Behind left corner of ftont
DUmper
Behind left cornet of front
DUmper
Main wire harness (C4231
Main wire harness (C424)
Front fog light sYstem
Engine wire harness (C126)
Engine wire harness (C 127)
Test tachometer connector
Daytime running lights resistor
Windshi€ld wiper motot
Brake fluid level sensor ( + |
Brake fluid level sensor (- )
Power steering pressure (PSPI
Lett front wheel sensor
Cruise control actuator
Left headlight (Low beam)
LeJ-t headlight (High beam)
Front fog light system
Windshield washer motor
switch
Rear window washer motor
Left front side matker light
Left front tu.n signal/parking lights
USA
ABS
Option
Canada
Option
G301Lett side of engine comPartmentBody ground, via engine comPart-
ment wire harness
23-20

Connector ldentification and Wire Harness Routing
{Undor-hood
Horn
Right tront turn signal/Parking
light
Right Iront side marker light
Right headlight (Low beam)
Right headlight (High beam)
Radiator fan motor
A/C wire harness (C151)
ABS front fail saJe relay
ABS rear fail sate relay
ABS pump motor
ABS modulator unit wire harness
(c161)
Under-hood ABS fuse/relaY box
(c901)
Under-hood ABS fuse/relaY box
(c902)
Under-hood fuse/relay box (C907)
Under-hood tuse/relaY box (C909)
Under-hood fuse/relay box (C9l Ol
Under-hood fuse/relaY box (C908)
Under-hood fuse/relaY box (C91 1)
Right front wheel sensor
Engine wire harness {C 104)
Engine wire harness (C'l 04)
Engine wire harness (C101)
Engine wire harness (C l 02)
Engine wire harness {C 103)
Behind right side of tront bumper
Behind right corner of tront
bumper
Behind right corner of front
bumpet
Behind right headlight
Behind right headlight
Right side of engine comPartment
Right side of engine comPartment
Right side ot engine comPartment
Right side oJ engine comPartment
Right side of engine comPartment
Right side oJ engine comPartment
Right side of engine comPartment
Right side of engine comPartment
Bight side ot engine comPattment
Right side of engine comPartment
Right side of engine comPartment
Right side of engine comPartment
Right side of engine comPartment
Right side of engine comPartment
Right side of engine comPartment
Righl side ot engine comPartmenl
Right side of engine compartmenl
Right side of engine comPartmen'
Right side of engine comPartment
8
4
14
7
J
2
c201
c202
c203
c204
c205
c206
c207
c208
c209
c210
c211
c212
c213
c214
c215
c216
c217
c218
c219
c220
c220
c221
c222
c223
Body ground, via main wire
harness
Body ground, via main wire
harness
Right side of engine compartment
Right side of engine comPartment
23-22

Gonnector ldentification and Wire Harness Routing
ABS Sub-harn6ss
Connactor ol
Terminal
Number of
CavitiesLocationConn€cts toNotas
c701
c702
c703
c704
c705
c705
c706
c706
22
20
22
2
2
Behind right kick panel
Right side of Jloor
Right quarter panel
Bighl quarter panel
Right side of cargo area
Right side of trunk
LeJt side of cargo area
Left side ot trunk
Main wire harness (C407)
ABS maintenance connecto.
ABS control unit
ABS control unit
ABS right wheel sensor
ABS right wheel sensor
ABS left wheel sensor
ABS left wheel sensor
Hatchback
Sedan
Hatchback
Sedan
G701
G702
Right quarter panel
Right quarter panel
Body ground, via ABS sub-harness
Body ground, via ABS sub-harness
23-42

Connector ldentification and Wire Harness Routing
UNDER-DASHFUSE/RELAY BOX
SRS Main Harness
Connector or
Terminal
Number ol
CavitiesLocationConnocts tol{otos
c801
c802
c803
c804
c805
c806
c807
2
4
o
18
2
I Behind dashboard lowet cover
J Under left side of dash
Under left side of dash
Middle of floor
Under left side of dash
Under right side of dash
Behind glove box
Under-dash f use/rclay box (C929)
Main wire haness 1C427)
Cable reel
SRS unit
Left dash sensor
Right dash sensor
Passenger's airbag assembly
G801Middle of floorBody ground, via SRS main
harness
23-47