system connectors HONDA INTEGRA 1994 4.G Workshop Manual

J: GLOVE BOX INFORMATIOf{
AIBBAG INFORMANO
SUPPLEMENTAL RESTiAINT SYSTEM (SRS)
. THE SRS MUST BE INSPECTED TEN YEARS AFTER IT
IS INSTALLED. TI{E DATE OF INSTALLATION IS SHOWN
ON THE CERTTFICATION PLATE, LOCATED ON THE
DRIVER'S DOOR JAMB.
. DIAGNOSTIC CHECKS AND REPLACEMENT OF SNS
COMPONENTS MUST BE DONE BY AN AUTHORIZED
DEALER
. SEE YOUR OWNER'S MANUAL FOR AODITIONAL SRS
INFORMATION.
K: FRONT SEAT PASSENGER INFLATOR WARNING TAG
A WARNING
ACCIDENTAL AIRBAG DEPLOYMENT CAN SERIOUSLY
HURT OR KILL YOU.
INSTALL THE RED SERVICE CONNECTOR WHEN THE IN-
FLATOR HARNESS IS DISCONNECTED
L: FRONT SEAT PASSENGER MODULE DANGER
A DANGER
EXPLOSIVE/FLAMMABLE
CONTACT WITH ACID, WATER OR HEAVY METALS SUCH
AS COPPER. LEAD OR MERCURY MAY PRODUCE HARM'
FUL AND IRRITATING GASES OR EXPLOSIVE COM.
POUNDS.
STORGE TEMPERATURES MUST NOT EXCEED 2OOOF
tlOO"CI. FOB PROPER HANDLIING, STORAG€ AND DIS-
POSAL PROCEDURES REF€B TO THE SERVICE MANUAL,
SBS SUPPLEMENT.
POTSON
CONTAI'\'S POISONOUS SODIUM AZIOE AND POTASSIUM
NITRATE.
FIRST AID
IF CONTENTS ARE SWALLOWED, INDUCE VOMITING.
FOR EYE CONTACT, FLUSH EYES WITH WATER FOR 15
MINUTES.
IF GASES (FROM ACID OR WATER CONTACT) ARE IN.
HALED, SEEK FRESH AIR. IN EVERY CASE. GET PROMPT
MEDICAL ATTENTION.
KEEP OUT OF REACI.I OF CHILDREN.
A' WARNING
THE AIRBAG INFLATOR IS EXPLOSIVE AND. IF ACCIDEN-
TALLY DEPLOYEO, CAN SERIOUSLY HURT OR KILL YOU.
. DO NOT USE ELECTRICAL TEST EOUIPMENT OR PROB.
ING DEVICES.
THEY CAN CAUSE ACCIOENTAL DEPLOYMENT.
. NO SERVICEAALE PABTS INSIDE. OO NOT OISAS-
SEMBLE.
. PLACE AIRBAG UPFIGHT WHEN REMOVED.
. FOLLOW SERVICE MANUAL INSTRUCTIONS
CAREFULLY.
fi{lHfiFe*% _
1-7
M: AIRBAG LABEL
AIRBAG
N: SRS WARNING IENGINE HOODI
SUPPLEMENTAL RESTRAINT SYSTEM (SBSI
THIS VEHICLE IS EOUIPPED WITH DRIVER SIDE AIRBAG.
ALL SRS ELECTRICAL WIRING AND CONNECTORS ARE
COLORED YELLOW.
TAMPERING WITH, DISCONNECTING OR USING ELECTRI-
CAL TEST EOUIPMENT ON TI{E SRS WIRING CAN MAKE
THE SYSTEM INOPERATIVE OB CAUSE ACCIOENTAL FIR'
ING OF THE INFLATOR.
A. WANING
THE AIRBAG INFLATOR IS EXPLOSIVE AND, IF ACCIDEN-
TALLY DEPLOYED, CAf{ SERIOUSLY HURT YOU'
FOLLOW SERVICE MANUAL INSTRUCTIONS CAREFULLY.
SUPPLEMENTAL RESTRAINT SYSTEM {SRSI
THIS VEI{ICLE IS EOUIPPED WITH DRIVER ANO FRONT
SEAT PASSENGER AIRBAGS.
ALL SRS ELECTRICAL WIRING AND CONNECTORS ARE
COLORED YELLOW.
TAMPENING WITI{, DISCONNECTING OR USI G ELECTRI'
CAL TEST EOUIPMENT ON THE SRS WIRING CAN MAKE
THE SYSTEM INOPERATIVE OR CAUSE ACCIDENTAL FIB'
ING OF THE INFLATOB.
A WABNING
THE AIRBAG INFLATOR IS EXPLOSIVE AI{O, IF ACCIDEN-
TALI-Y DEPLOYED, CAN SEBIOUSLY HURT YOU'
FOLLOW SERVTCE MANUAL INSTRUCTIONS CAREFULLY.
N: SRS WARNING IENGINE HOODIi
'This vorsion
passonger's
ol tho labol is u36d in cs.t with a front soat
airbag.
{cont'd)

Fuel and Emissions
Spocial Tools ................ 1 1-2
Compon€nt Location
lndex ................. ...... 11-3
System Description
Vacuum Connectiona .......,.................... 1 1 -8
Efectrical Connections ....,.,.,......,...,,.....,'11-12
Syst€m Connectors ...,...,.................-.--. 11-2O
T.oubloshooting
Troubleshooting Guido .......................... 1 1-32
Self -diagnostic Procedures .,..,............... 1 1 -34
How to Road Flowcharts ...................,... 11-39
PGM-Fl System
Systom Description .............................. 1 l-4O
Troubleshooting Flowcharts
Engine Control Moduls ............... ........... 1 1 -42
Heated Oxygon Sensor ......,.................. 1 1-46
Heated Oxyg€n Sonsol Heatel .....,......... 1 1 -47
Fuel Supply System ..............-............... 1 1-50
Manitold Absolute Pressure
Ssnsor ............................................ 1 1-52
Top D6ad Cente./Crankshatr
Position/Cylindor Position sonsor ........ 1 1 -56
Engine Coolant Tempsrature Sonsor ....... 11-58
Throttlo Position Sonsor ........,..,,........... 1 1-60
Intake Air Temperaturs Sensor ............... 11-62
Baromet c Prsssuro Sensor ......,...,...,..,. 11-64
lgnition Output Signal ........................... 1 1 -66
Vehicle Spe€d Sensor ........................... 1 1 -68
Electdcal Load Dotector ....,...,..........,.... 1 1 -7O
Knock Sensor [818C1 engine] ............... 11-74
A/T Fl Signal A/B ................................. 1 1-76
ldle Contlol System
System Troubleshooting Guide .................. 1 1 -78
Systom Description ........ 11-79
Troubloshooting Flowchans
ldl€ Ail Control Valve ........................... 1 1 -82
Ail Conditioning Signal ......................... 1 1 -84
Altemator FR Signal ............................. 1 1 -86
Automatic Transaxle (A/T) Gear
Position Signal ......... 11-88
Brake Switch Signal ............................. 1 1 -9O
Startel Switch Signal ............................ 11-92
Power Steering Pressure Switch Signal ... 11-93
Fast ldle Thermo Valve ...................,......... 1 1 -94
ldls Speed S€tting .................................... 1 1 -95
Fuel Supply System
Systam Tloubloshooting Guid. .................. 1 1 -97
Fuol Linos ...................... 1'l -98
System Description ........ 11-100
Fuol Prassure ................. 11-100
Fu6l Ini6ctors ................. 11-102
Fuel Pressure Ragulato. .,. 11-106
Fuel Filter ...................... 11-108
Fual Pump ..................... 11-109
PGM-Fl Main F6lay ................................... 1 1"1 1 1
Fuel Tank ...................... t 1-114
Intake Air System
System Troubloshooting Guido .................. 1 1 -1 1 5
Systom Dascription ........ 11-116
Air Clean€r .................... 11-117
Throttls Cable ................'11-118
Throttl8 Body ................ 11-120
lntake Air Bypass Cont.ol Systsm
[B18Cl enginal .,......... 11-123
Intake Manilold [B1881 onginol ................. 11-128
Emission Control System
Systsm Troubleshooting Guido .................. 1 1 -1 29
Systam Doscription ........ 11-130
Tailpips Emission ........... 11-130
Thrae Way Catalytic Convortor ...,...,........., 11-131
Positiva CrankcaEo V6ntilation Systcm .,....., 11-134
Evaporativo Emission Contro|,..,..,.,.,,.,,..,.., 1 1-135

System Description
System Connectors IEngine Compartmentl
{818C1 onginol
ENGINEWIRE HARNESS
t3
c132
c131
UNDER,HOOOFUSE/RELAYaox
c102c222
ct 04c220
MAllrlWIREHARI{ESS
o
11-20

System Description
System Connectors [Engine Compartment] (cont'd)
c 120{81881 sngino}
(B18Cl onginol
11-22

System Description
System Connectors [Dash and Floor]
PGM-FI MAINRELAY
C1I44 UNDEN-OASHFUSE/REALYBOX
ENGINECOMPARTMENTWIRE
DASHBOARO WIREHARNESS
MAINWIREHARI{ESS
REARWIREHARNESS
11-24

System Description
System Connectors [Dash and Floor] {cont'd}
UNDER-DASHFUSE/RELAYBOX
DASHBOARDHARNESS
MAINWIREHARNESS
11-26

System Description
System Connectors [Dash and Floorl (cont'd)
c/ro5SERVICECHECKCONI{ECTOR
11-28

System Description
System Connectors [Fuel Pumpl
REAR WIREHAFNESS
11-30

How to Read Flowcharts
A flowchrrt is dasigned to be us€d fiom start to final repair. lt's like a map showing you the shortest distanco. But be-
ware: if you go off tho "map" anywhere but a "stop" symbol, you can easily get lost
l6rffil Desclibas the conditions or situation to start a troubleshooting flowchart.(bold tyDo)
|TeTiONl Asks you to do something; pedorm a test, set up a condition etc'
<:6Eei6io-fr\> Asks you about the result of an action, then sends you in the appropriste troubleshooting direction.
I-SJTFI The snd of a series ot actions and decisions, describes I tinal repair action and aomotimea diracts
(bold typel you to 8n garlier part of the tlowchart to confirm your repair'
NOTE:
a Tha tarm ,,lntormittgnt Failure" is used in these chans. lt simply means a system may have had a failur6, but it chocks
out OK !t this time. lf th6 Msltunction Indicator Lamp (MlL) on ihe dash does not come on, check for poor connections
or loose wires at all connectors rolated to the cilcuit that you are troubleshooting (see illustration b6low).
a Most ot tho troublashooting flowchans have you reset the Engine Control Module (ECM) and try to duplicate the Disg-
nostic Troubls Cod6 (DTC). lf the problem is intermittent and you c8n't duplicat€ the cod6, do not continus through
the flowchart, To do so will only rosult in confusion and, possibly, a ne€dlessly replaced ECM
a ,,opon,'and ,,short,, are common electrical terms. An open is a break in a wir6 or at a conn€ction. A short is an
accidontal connaction ot a wir€ to ground or to another wire. In simple electronics, this usually means som€thing won't
work at all. In complex electronics (like ECM's), this can sometimes mean something wolks, but not the way it's sup-
poSad to,
a il th6 olectricsl readings are not as specified when using the test harness, check the test harness connoctions bsfore
procooding.
LOOSE
11-39

PGM-FI System
Engine Control Module (ECM)
lB18B1 ongino onlyl
The Malfunction Indicator Lamp(MlL) n6v6. com6s on lovon follwo socondal aftor ignition istumed on.
lurn the ignition switch ON.
Inspect No. 15 {BACK-UP LIGHT}l1O A) luse in the underdashtuse/relay box.ls the low oil pressure light on?
- R€placo No. 'l5
IBACK-UP LIGHT)llo Al fuso.- Ropair short inYEL wiro botwoonNo. 15 (BACK-UP
LIGHT) {10 A) fusoano gauge 6$om-blv.
Turn lhe ignition switch OFF.
ls the fuse OK?
Connecl the test harness betweenthe ECM and connectors (seepag€ 11-37).Repair opon in YEL wiio botw6onNo.'15 IBACK-UP LIGHTI 110 A)luso and gaug6 assombly.
Turn the ignition switch ON.
- RsDlaco tho MIL bulb.- Ropair opon in GRN/ORN wi.ebetwoen ECM {A13} andgaug€ a$6mbly.
ls the MIL on?
Measure voltage between body
Oround and the tollowing termi-nafs individuallv: 423, 424.
Ropah op6n in BLK wirolsl bo-tw6en ECM and GlOl llocatod atthormostat housing) that hadmoro than 1.0 V.
ls there less than 1.O V?
Substituto a known-good ECMand rochgck, lf symptom/indica-tion go€s away, roplaco tho origi-nal ECM.
NOTE: lf this svmptom is intermittent. check for a loose fuse No. 15 (BACK
UP LIGHT, 1OA) in the under-dash Juse/relay box, a poor connection at ECM
terminal A13, or an intermittent open in the GRN/ORN wire between the ECM(A13) and the gauge assembly.
I A13
I| | o oooo oooooooo I oooo oooo I ooooool ooooooooooo I
G 10'l
11-42