1998 ACURA INTEGRA Service Repair Manual

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Power Distribution schematics show how power is supplied from the positive battery terminal to
various circuits in the car. Refer to the Power Distribution section to get a more detailed picture
of how power is supplied to the circuit you're working on.
From Battery to lgnition Switch, Fuses, and Relays
lndividual circuit schematics begin with a fuse. The first half of Power Distribution, however,
shows the wiring "upstream" between the battery and the f uses.
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FUSE 15 Page 10'7 1
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Distribuiion,pago 1G7.
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BATTERYSTARTERBLK
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See Power Se€ PowerDistribution. Distribution.page 10-5. pag€ 10-5.
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Sa€ PowerDistribution,page 10-6.
Power Distribution Schematics
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How To Use This Manual
Power Distribution Schematics
From Fuses to Relays and Components
The second half of Power Distribution shows the wiring "From Fuses to Relays and
Components." This can speed your troubleshooting by showing which circuits share fuses. lf
Power Distribution shows that an inoperative circuit and another circuit share a fuse, check a
component in the other circuit. lf it works, you know the fuse is good and power is available to
the inooerative circuil.
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FUSE 15204
UNDER-OASHFUSE/RELAYBOXFUSE 2310A
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L -J SWITCH(AutomaticTransmission)Page 110-13
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IYEL Iz I czrar -.lclocK
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r-.l HAZARD
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1 AUTOMATIC
I SEAT BELTI CONTROLJ UNITPage 146
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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
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FUELPUMPPage 23-1
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LEFTREARstoEMARKERLIGHTPage 110-7
POWERANTENNAMOTORPage 151
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HIGHMOUNTBRAKELIGHTPage 110-9
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REARwtNDowWIPERMOTORPage 92
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FUEL TANKUNITPages 74and 81
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Ground DistributiSchematics
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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
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To see where
connectors and parts
are located, look up
their photos in the
Component
Location section.
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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.
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203-15203-14
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Circuit ldentification for In'Line and Fuse Box Connectors
tuse the chart (on page 204, sample below) to help diagnose multiple symptoms in separate
circuits which could be caused by a single problem in a connect,oishared by those circuits'
Here's how that chart could help you find such a problem:
1. Pick one of the multiple symptoms and look up the schematic for that circuit'
2. Make a list of all in-lrne and fuse box connectors in that schematic (include page numbers).
3. Then, in the chart, look up each connector on your list to see if circuits related to the other
symptoms run through one of them. lf they do, inspect that connector for the problem.
Example: The horn, A,/C, and the right headlight don't work. List all in-line and fuse box
connectors in the horn circuit and then check the chart (sample below). You find that C211 is
common to the A,/C circuit and the headlight circuit, so you inspect c211 and find the problem:
bent terminals.
)Connector
(6 or more
cavities)
Numbel of
Cavities - Color
1O-GRY
I 12-GRY
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Wire
Harnesses
I Main/ | ComP er 'ror c.ntrols,
I Dashboard I
Circuits
Ant!lock brake system (ABS), Cruise control,
Programmed {uel injection system (PGM-FD
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lvlain
lgnition system
Antilock brake system (ABS), BIower controls, Fans,
Wiper/washer
lgnition system, Starting system
Blower controls, Compressor controls, Headlights'
Horns, Vehicle speed sensor (VSS), Wiper/washer
Programmed fuel injection system (PGM-Fl)'
Starting system
Engine/ |Main I
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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.
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1G101
Where separate wires
join, only the splice is
shown; for details on
the additional wiring,
refer to the circuits
listed.i-l{:i
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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
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Wire choices for options or
different models are labeled
and shown with a "choice"
This broken line means
both terminals are in
connector C134.
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Connectors - "C"
The cavities (and wire terminals) in each
connector are numbered starting from the
upper left, looking at the male termlnals from
the terminal side (or looking at the female
termhaiSTiom the wire side. Both views are in
the same direction-so the numbers are the
same.) All actual cavities are numbered, even
if they have no wire terminals in them.
Wire SideolFemale Terminals
Terminal SideolMale Terminals
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The connector cavity number is listed next to
each terminal on the circuit schematic. The
cavitv/terminal shown below is #6.
FemaleTerminal
This means the connector
connecls directly to the
componenl.
This means the connector
connects to a lead (pigtail)
wired directly to the
component.
This symbol represents one
bus bar inside the cap of
a junction connector. A ...
Lrh.t'-=*nn".tor cap Icontains several bus bars, A
but only the one aflecting
that circuit will be shown. f-
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The dots represent tabs on althe bus that the wire ,2il;;;;';;;;;;:;i;
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Remaining wires to see Gauses
the same bus bars
are represented by
a broken line.
Splices
SDlices are shown as a dot. Their location
and the number of wires may vary
depending on the harness manuJacturer.
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Components
A solid border line means the
entire component is shown.
A broken border line indicates
that only part of the component
rs snown.
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The name of the
component appears nexl
to its upper right corner
followed by notes about
its f unction.
BRAKEswrTcHClosed withpedaldepressed.

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"
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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.
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