ground HONDA INTEGRA 1998 4.G Workshop Manual

Troubleshooting
DTC 2-5 lcont'd)
From p3g€ 23-315
Ch.d( tor r short to ground in the SRS main harne$:1. Oisconnect th€ b6ttery negative cable, then disconnectthe positive cable, and wait lor three minutos.2. Disconngct the driver's airbag 2P connector from thecable reel 2P conn6ctor.3. Disconnect the SRS main harness 18P connector tromthe sRs unir.4. Bemove the special tool (2 0) from the SRS main harness2P connector.5. Check resistsnce between the No.'l0terminal oftheSRSmain harness 18P connector and ground, and betweenthe No. l4 terminal of the SRS main harness 18P connec-There should be '1 M0 or mor€.
SRS MAIN HARNESS18P CONNECTOR
SRS unit; r.pbco th. SRS unh lsoo
Short to glound in th6 SRS mein hamo33; rapl.c. tho SRSmain ht]noSl,
23-316

)6.
7.
8.
Connect a 12 volt battery to the tool:
. lf the green light on the tool comes on, the alr-
bag igniter circuit is defective and cannot deploy
the airbag. Go to Damaged Airbag Specia I
Procedure.
. lfthe red light on the tool comes on, the airbag is
ready to be deployed.
Push the tool's deployment switch The airbag
should deploy (deployment is both highly audible
and visible; a loud noise and rapid inflation of the
bag, followed by slow deflation).
. lf the airbags deploy and the green light on the
tool comes on, continue with this procedure
. lf an airbag doesn't deploy. yet the green light
comes ON, its igniter is defective. Go to Dam-
aged Airbag Special Procedure.
!!@ During deployment, the airbag c8n
become hot enough to burn you Wait thirtY min-
ut€s after d€ployment befote touching the assem-
blv.
Dispose of the complete airbag. No part of it can be
reused. Place it in a sturdy plastic bag, and seal it
securery.
CAUTION:
. wear a lace shield and gloves when handling a
deployed airbag.
. Wash your hands and rinse them well with
water after handling a deployed sirbag
)
Deploying the Airbag: Out-ot-vehicle
NOTE: lf an intact airbag has been removed from a
scraDDed vehicle, or has been found defective or dam-
aged during transit, storage or service, it should be
deoloved as follows:
@@ Position th€ airbag laca up. outdoors on
tlat ground at l€ast thirty leet (10 m) ftom any obstacles
or people.
1. Confirm that the special tool is functioning properly
by tollowing the check procedure on thls page or on
the tool lab€|.
2. Follow steps 5, 6, 7, and 8 ol the in.vehicle deploy'
ment orocedure.
Damaged Airbag Sp€citl Procedurc
!@ [ an airbag cannot be d.ploytd, h 3hoold
not be lreated as normal scrap; it should 3till b. corlrkl
ered a polentially sxplosive device that can clura tari
ous iniury.
1. lf installed in a vehicle, follow the removal proce-
dure on page 23-317.
2. ln all cases, make sure a short connector is properly
installed on the airbag connector.
3. Package the airbag in exactly the same packaging
that the new replacement part came In.
4. Mark the outside of the box "DAMAGED AIRBAG
NOT DEPLOYED" so it does not get confused with
your Parts stock.
5. Contact your Acura District Technical lvanager for
how and where to return it for disposal.
Deployment Tool: Ch€ck Ptocedure
1. Connect the yellow clips to both switch protector
handles on the tool; connect the tool to a battery
2. Push the operation switch: green means the tool is
OK; red means the tool is faultv.
3. Disconnect the battery and the yellow clips
23-321

).1
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
).1
I
Xr
12Fg oAmerican Honda Motor Co., Inc. - All Rights Reserved Service Communications 275 pages

How To Use This Manual
Circuit Schematics
Each schematic reoresents one circuit.
A circuit's wires and components are
arranged to show current flow, from
power at the top of the page, to ground,
at the bottom.
Other circuits may share power or ground
terminals or wiring with the circuit shown.
A wire that connects one circuit to
another, lor example, is cut short and has
an arrowhead at the end of it pointing in
the direction of current flow. Next to the
arrowhead is the name ol the circuit or
component which shares that wiring. To
quickly check shared wiring, check the
operation of a component it serves. lf that
component works, you know the shared
wiring is OK.
All connectors are numbered (C709,
C416, etc.). Below each connector
number (except those for components)
is the number of a ohoto in the back
of the book showing the connector's
location on the car. Connector cavities
are also numbered. The numbering
sequence begins at the top left corner
of the connector as seen from eilher of
the viewpoints shown on page E.
Disregard any numbers molded into the
connector housing.
Wires are identif ied by the abbreviated
names of their colors; the second color is
the color of the stripe. Wires are also
identif ied by their location in a connector.
The number "2" next to the male and
female wire terminals at C416, for
example, means those terminals join in
cavity 2 of connector C41 6.
A complete description of schematic
symbols begins on page @.
O,e
Arowhead meanswire connects toanother ciacuit;it points in directionof current tlow.
"OK" note tellsYou how tocheck sharedwiring.
"HOT" label tells you whenthe ignition switch suppliesDower lo the fuse. \\
.---#
"*l
Broken wi.e means I
ffir"i:'ffi:[:l''" -{
elsewhere as directed Ioy ttt" not" n"n to [. u.* f
Ground ---{
Arrow with note meansother circuits connect here.
Distribution,page 10-3.
See lndicators
I
.| GAUGE
IASSEMBLY
I
I
I
IJO,'
i"?*i,h -..--.-{[
Cavity number; L--assigned as _----> 1shown on page l9l.
Maleterminal
c70!
F,":,2 f
- i":!f $l ?:T"'i,.i,.
Number ot photoin back ot bookshowing componentlocation on car.FUELGAUGESENDINGUNIT
See GroundDistribution.page 14'4.
c484
Thermistor
See Gauges
Splice ----------)f rr(
S€e GroundDstrb(rtlonpage 14 .l
G30t
iT;
Li=
- -.I UNDER-
FUsE 13 ../ I -Dl^s!io-a-- - , iFUsESee Power Drstlbulton. I RELAYpase 1o-3. ! Po^{^ -__:_____ ___Jp"otoa
o,a

)a
)a
'ouno ulslnoulron Scnemarlcs -
This samDle Ground Distribution schematic shows all of the components thal share two
ground points.
LEFT RIGHT RIGHTREAR REAR REARLEFT LEFT TURN RTGHT TURN RIGHT SIDEBRAKE LIGHTS/ BACK-UP SIGNAL BACK-UP SIGNAL BRAKE LIGHTS/ MARKER
TAILLTGHTS LIGHT LIGHT LIGHT LIGHT TAILLIGHTS LIGHT
Page110-7 Page110-8 Page110-5 Page110-8 Page110'5 Page110-7 Page110-7
r--r r--t t- t-l t-t ,-t r--r r--t r-\t*-r r--r \./ \/ \./ \/ \/
I LICENSE LIGHTS
I Page 110'6
l"uo, O O
l*"''* L.J
!-.1**
FUELPUMPPage 23-1
lltl
LEFTREARstoEMARKERLIGHTPage 110-7
POWERANTENNAMOTORPage 151
tlll
:E_,
a-al
JL
c549
t\
HIGHMOUNTBRAKELIGHTPage 110-9
ttll
REARwtNDowWIPERMOTORPage 92
tlll
iIn*
a-
Ira
T!. G601
FUEL TANKUNITPages 74and 81
tltl
1 Y C652
irg c530- | puoro tzt
I
106
T+ Gs21
c603
Ground DistributiSchematics
E
)o

How To Use This Manual
Component Locations
To see where a component or connector is located on the car, look up its photo number in the
Component Location section in the back of the book. The photo will also tell you the color of
the connector. and how manv cavities it has.
VEHICLESPEEDSENSOR (VSS)
ENGINECONTROLUNIT (ECMPHOIO 8A
0,, I
tl
tl
'r"'
To see where
connectors and parts
are located, look up
their photos in the
Component
Location section.
r -.I GAUGE
| | ASSEMBLY I
rtlL-J L-
r -'l
ll
ll
O,(
ot(
il"l,*.I CRUISE
I CoNTROL
i"u,t',:..
lf there is no photo number below or beside a connector, ground, or terminal number, look up
that connector, ground, or terminal number in the appropriate Connector ldentification Chart.
The chart will tell you the color of a connector, how many cavities it has, where it's located,
and what component or harness it connects to. On the page opposite that chart you'll find an
illustration of the related harness.
Connector ld6nlillcallon and Wire Harness Rouling tconrd)
SEAT WIFEHAFNESS
c712lf a connector on a
schematic has no
photo number, look it
up in the Connector
ldentification chart.
c297
203-15203-14
t-

How To Use This Manual
Symbols
Q,(Wire Color Abbreviations
The following abbreviations are used to
identify wire colors in the circuit schematics:
BLK.... .........btack
BLU.... ......... btueBRN .... ........ brown
GRN.... ........ green
GRY .... ......... gray
LTBLU . ..... tighrbtue
LTGRN. ....ljghtgreen
ORN.... ....... orangePNK.... ..........pink
PUR .... ........ purpte
RED .... .......... redwHT... .,.......white
YEL .... ........ ye ow
A broken line means this part ot the circuit
is not shown; reler to the circuit listed for
the complete schematic.
",.I
ar
*.1
See GroundDistribution,page 14-1.
1G101
Where separate wires
join, only the splice is
shown; for details on
the additional wiring,
refer to the circuits
listed.i-l{:i
;["
UNDER.DASHFUSE/RELAYBOX
Wires
A wavy line at the end of
a wrre means the wire is
broken by the binding of
the book or by a "choice"
bracket but continues on
the next page.
Wire insulation can be
one color, or one color
with another color stripe.
(The second color is
the stripe.)
This circuit continues on
another page. (The arrow
shows direction of current
flow.) To follow the RED/
BLK wire in this example,
you would turn to page 23-5
and look for the "2" aftow.
This means the branch of the
wire connects to another
circuit. The arrow points to the
name of the circuit branch
where the wire continues.
BLK-Crulse Controt, QaalGauges, Indrcarors
!YEUBTK
II
Wire choices for options or
different models are labeled
and shown with a "choice"
This broken line means
both terminals are in
connector C134.
bracketlikethis
*J
Q,(
ManualTransmission
*'ffil:,*"1"' *"1""0
I
"""1
H
Name of Circuit
cl34
a,ll

How To Use This Manual
Symbols
Ground - "G"
This symbol means the end of
the wire is attached (grounded) Ito the car frame or to a metal Ipart connected to the f rame. \I orol
,
Each wire ground (G) ," -/numbered for reference.
Q,(Switches
These switches move
together; the broken straight
line between them means thev
are mechanically connected.
Other types of switches are
controlled by a coil or a solid
state circuit. Unless otherwise
noted, all switches are shown
in their normal (rest) position,
with power off .
This ground symbol (dot
and 3 lines) overlapping the
component means the housing
of the component is grounded
to the car f rame or to a metal
part connected to the f rame.
This symbol represents
the bus bar inside a ground
connector. The dots a
i"r*"""*nn"l,':" .,.L I I I
lermtnals connectto. -'--'-:t"'--------<
The ground symbol (large dot)
: Gsoo
is the connection between the
bus bar and metal (grounded)
part of the car.
Terminals - "T"
m
ffi
Solid-state
Fuses
This means power is supplied
when the ignition switch is in ON (ll).
Diodes
A rectifier diode works like a one
way valve. lt allows current to
flow only in the dlrection of the
arrow.
A Zener diode blocks reverse
currenl at normal voltages just like
a rectifier diode. At high voltages,
however, a Zener diode allows
current to flow in reverse.
Q,(
Each 'T" terminal (ring type)
is numbered for reference ano
location. A "T" terminal is
secured with a screw or bolt.
Shielding
This represents RFI
(Radio Frequency
Interf erence) shielding
around a wire. The
shielding is always
connected to ground.
,,,
n
:'iL.-!
L-_+i !",*
I

'l'
Five-Step Troubleshooting
1. Verify The Complaint
Turn on all the components in the problem
circuit to check the accuracy of the customer
complaint. Note the symptoms. Do not begin
disassembly or testing until you have
narrowed down the Problem area.
2. Analyze The Schematic
Look up the schematlc for the problem
circuit. Determine how the circuit is
supposed to work by tracing the current
paths from the power source through the
circuit components to ground. Also, trace
circuits that share wiring with the problem
circuit. The names of circuits that share the
same fuse, ground, or switch, and so on' are
referred to in each circuit schematic. Try to
operate any shared circuits you didn't check
in steo 1. lf the shared circuits work, the
shared wiring is OK, and the cause must be
in the wiring used only by the problem
circuit. lf several circuits fail at the same
time, the fuse or ground is a likely cause.
Based on the symptoms and Your
understanding of the circuit's operation,
identify one or more possible causes.
3. lsolate The Problem By Testing The Circuit
Make circuit tests to check the diagnosis
you made in step 2. Keep in mind that a
logical, simple procedure is the key to
eff icient troubleshooting. Test for the most
likely cause of failure f irst. Try to make tests
at points that are easily accessible.
4. Fix The Problem
Once the specific problem is identified,
make the repair. Be sure to use proper tools
and safe procedures.
5. Make Sure The Circuit Works
Turn on all components in the repaired
circuit in all modes to make sure you've
fixed the entife problem. lf the problem was
a blown f use, be sure to test all of the
circuits on that {use. Make sure no new
problems turn up and the original problem
does not recur.
Test Equipment
CAUTION:
Most circuits include solid-state devices.
Test the voltages in these circuits only with
a 1o-megaohm or higher impedance digital
multimeter. Never use a test light or analog
meter on citcuits that contain solid-state
devices. Damage to the devices may result.
Test Light and DVOM
On circuits without solid-state devices, use a
test light to check for voltage. A test light is
made up of a 12 volt bulb with a pair of leads
attached. After grounding one lead, touch the
other lead to various points along the circuit
where voltage should be present. The bulb
will go on i{ there is voltage at the point being
tested. lf you need to know how much
voltage is present, use a digital
volVohmmeter (DVOM).
Selt-Powered Test Light and DVOM
Use a self-powered test light to check for
continuity. This tool is made up of a light bulb,
battery, and two leads. To test it, touch the
leads together: the light should go on.
Use a self-powered test light only on an
unoowered circuit. First, disconnect the
battery, or remove the fuse that feeds the
circuit you are working on. Select two points
in the circuit between which you want to
check continuity. Connect one lead ol the
self-powered test light to each point. lf there
is continuity, the test light's circuit will be
completed, and the light will go on.
lo
I
SELF.POWERED TEST LIGHT

How To Use This Manual
Test Equipment
lf, in addition, you need to know exactly how
much resistance there is between two ooints.
use a digital volVohmmeter (DVOM).
In the "oHMS" range, the DVOM will show
resistance between two points along a circuit.
Low resistance means good continuity.
Diodes and solid-state devices in a circuit can
make a DVOM give a false reading. To check
a reading, reverse the leads, and take a
second reading. lf the readings differ, the
component is affecting the measurement.
Jumper Wire
Use a jumper wire to bypass an open circuit.
A jumper wire is made up of an in-line f use
holder connected to a set of test leads. lt
should have a tive ampere fuse. Never
connect a jumper wire across a short circuit.
The direct battery short will blow the fuse.
Short Finder (Short Circuit Locater)
Shoft linders are available to locate shorts to
ground. The short finder creates a pulsing
magnetic field in the shorted circuit which you
can follow to the location of the short. lts use
is explained on page 15.
SHORT FINDER
To order any test equipment shown above,
contact your local tool supplier. For a list of
suppliers and tool numbers, refer to Acura
Required Special Tools and Equipment
Service Bulletin.
Troubleshooting Precautions
Before Troubleshooting
1. Check the main fuse and the fuse box.
2. Check the battery for damage. state of
charge, and clean and tight connections.
CAUTION:
. Do not quick-charge a battery unless
the battery ground cable has been
disconnected, or you will damage the
alternator diodes.
. Do not attempt to crank the engine with
the ground cable disconnected or you
will severely damage the wiring.
While You're Working
1. Make sure connectors are clean, and have
no loose terminals or receotacles.
2. Make sure multiple terminal connectors are
packed with dielectric (silicone) grease.
Part Number: 08798-9001 .
Pack with dielectric (silicone) grease
When connecting a connector, push it until it
clicks into olace.
Do not pull on the wires when
disconnecting a connector. Pull
only on the connector housings.
Most circuits include solid-state
devices. Test the voltages in these
circuits only with a 1o-megaohm or
higher impedance digital multimeter.
Never use a test light or analog meter
on circuits that contain solid-state
devices. Damage to the devices
may result.
Qr(
l"(