1998 HONDA INTEGRA fuse box

Fan Controls
RADIATORFANswtTcHTest, page 23-119
Component Location Index
For the A/C system, see section 22.
UNDER-HOODFUSE/RELAY BOX
CONDENSER FAN RELAYTest, page 23-69
RADIATOR FAN RELAYTest, page 23,69
FAN MOTORTest, page 23-119
TOR FAN MOTORTest, page 23,119
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Circuit Diagram (Without A/Cl
UNOEF.OASHFUSE,NELAY BOX
|-;ffi;I-YELf\-.rl]-t
BTK'EL -l
RAOIATORFANS\,YITCHfoN : above )(199'F (93'C)J
BLIVREO
BLK
I
G201G401
IGNITION SWITCH
N0.41 (lmAl No.42 (104)
RADIATORFANRELAY
23-117
.l

Fan Controls
IGN TION SWITCH
/ BAI \WHT/ELK +-WHTT rcotr
UNDER DASH
-
IFUSE/8ELAY 8ox I
|-;;;l IBL(rYEL t==rYEL-l
BLUiYEL
I
I
I
.h
Ith*-'T'o'oo'
8LU/RED
+A/C SYSTEM
.,'l'**u.'
UNDER.HOOD FUSEi NELAY BOX
No 41 (100A) No 42 (40A)
23-114

UNDER.DASHFUSE/RELAY 8OX
No.l5 (7.54)
No 2s (7 5A)
Gircuit Diagram
WHTiGRN
| $il,4,
V
MODULE(ICM)
ru{no unrno I(To pase 23 12s)
|BtU
No.rs (10A)FUSE
V
I
GAUGE ASSEMBLY
YEUBLU
t,,
| ,,J,,
1l
|;;il'-II SPEED II SENSoBIVSS) |-t-
. MAINTENANCEREMINDER UNIT' TCM' ECM' CRUISECONTROT UNlT
f7
I-oRN
BLKMHT
I
G501
I'YEUGRN YE
ln
tl
P**,,,'
ffirxl-"
louRED/BLU
.J'-
CRUISECONTROLUNIT
BLK
I
G10l
23-123
-/
UNDEF HOOD FUSE/RELAY BOX

Vehicle Speed Sensor (VSSI
Troubleshooting
{To next page)
REO TEST HARNESS
PBOTECTIVETAPE
Test tho 8LK wiro:1. Disconnect the 3P connectorfrom the vohicle speed sensor(vss).
2. Connect the test harness(07LA,J - PT3020A) only to theengine wire harnoss.3, Connect the RED test harnessclip to the positive probe of anohmmel€r.4. Check for continuity betwoenthe RED test harness clip andbody ground.
Roplir op.n in th. BLK wirob.tw..n tha VSS .nd G101.
To3t thc BLK/YEL wiro:1. Conn6ct th€ WHT test harnessclip to the positive prob€ of avoltmeter, and connect the REDt€st harness clip to the nogativeprobe.2. Turn the ignition switch ON (lll.
R.p.lr op.n In tho BLK/YEL wirebrtw..n th. VSS and th. under-dr.h tu../r.l!y box.
Tort th. BLU/WHT wiro:Connect the GRN test harnessclip to the positive prob€ ot avoltmeter, and connect the REDtest harness clip to the nggatjveprobe.
Roprh op.n in th. 8LU/WHT wireb.tw.on tho VSS lnd PCM.ls there about 5 V or more?
Before testing, inspect the No. 15 (7,5 A) fuse in the under-dash fuse/relay box.
GRN TESTCLIP
TEST HARNESSOTLAJ - PT3O2OA
w'{T TES? HARIVESS CLIP
TAPE
23-128

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23-131
Fuel Gauge
Gauge Test
NOTE: Refer to page 23-123 for the fuel gauge system
circuit.
1. Check the No. 25 (7.5 A) fuse in the under-dash
fuse/relay box before testing.
2. Remove the rear seat (see section 20).
Remove the protective cover and access panel from
the tloor.
With the ignition switch OFF, disconnect the 3p con-nector from the fuel gauge sending unit.
3.
4.
5.
PROTECTIVECOVER
Connect the voltmeter positive probe to the
YEL/WHT terminal and the negative probe to the
BLK/WHT terminal, then turn the ignition switch ON(ll). The.e should be between 5 and 8 V.
a lf the voltage is as specified, go to step 6.a lI the voltage is not as specified, check for- an open in the YEL/WHT, BLU/WHT or
BLK/WHT wire.- poor ground (G501, G502).
3P CONNECTOR
View from wire side
6.Turn the ignition switch OFF. Attach a jumper wire
between the BLKMHT and YEL/WHT terminals,
then turn the ignition switch ON {1.,.
Check that the pointer of the fuel gauge starls mov-
ing toward the "F" mark.
CAUTION: Turn the ignition switch OFF before the
pointer reaches "F" on the gauge dial, Failure to do
so may damage the tuel gauge.
NOTE: The fuel gauge is a bobbin (cross-coil) type
gauge, hence the fuel level is continuously indicat-
ed even when the ignition switch is OFF, and thepointer moves more slowlv than that ol a bimetal
rype gauge.
a lf the pointer ol the fuel gauge does not move at
all, replace the gauge.
a It the gauge is OK, inspect the fuel gauge send-
ing unit.

Engine Coolant Temperature (ECT) Gauge
Gauge Test
NOTE: Refer to page 23-123 for the wiring description of
the engine coolant temperature (ECT) gauge circuit dia-
gram.
1. Check the No. 25 (7.5 A) fuse in the under-dash
fuse/relay box before testing.
2. Make sure the ignition switch is OFF, then discon-
nect the YEL/GRN wire trom the ECT gauge send-
ing unit and ground it with a jumper wire.
YEL/GRN WIRESENDING UNIT
Turn the ignition switch ON (ll).
Check that the pointer of the ECT gauge starts mov-
ing toward the "H" mark.
CAUTION: Turn the ignition switch OFF before the
pointer reaches "H" on the gauge dial. Failure to do
so may damage the gauge.
a lf the pointer of the gauge does not move at all,
check lor an open in the YEL or YEL/GRN wire.
lf the wires are OK, replace the ECT gauge.
a lf the ECT gauge works, test the ECT sending
unrt.
ECT Sending Unit Test
Disconnect the YEL/GRN wire from the ECT send-
ing unit.
With the engine cold, use an ohmmeter to measure
resistance between the positive terminal and the en-
gine (ground).
Check the temperature ol the coolant.
Run the engine and measure the change in resistance
with the engine at operating temperature (the radi-
ator fan comes on).
5. It the obtained readings are substantially different
from the sDecifications above, replace the ECT send-
Ing unrt.
POSITIVE TERMINAL
Temperature133oF (56oC)1850F (85.C)-
212.F (100'C)
Resistance {O)13746-30
23-134

Maintenance Reminder System
Circuit Diagram
UNOER.HOOO FUSEIRELAY BOX
N0.41 (lmA) No 42 (40A)
MAINTENANCE REMINDER UNIT
8LK
c201G401
23-138