Page 1224 of 1395
Integrated Gontrol Unit
Circuit Diagram -'97 Model
UNDER.HOOD FUSEi RELAY 8OXBATTEFYI No.4' {'004) \0.d2'40A) |
cr*"
l__*l;;T
w_T ELK +!v_T
I H-uTr.r--i=r-
GFNi BLK
lo,,.h WINDSHIELD( il) WASHEB
Y
SWITCH
WHTiBLK
I
l-IVWHT]BLK WINDSHIELDI WASHERI MOTOB
WINDSHIELD WIPER/WASHEF 9WTTCH ,
OFF/INT INT
VV
tltltl
tl
BLUMHT
VWINDSHIELDWIPERMOTOR(As)
ag
3
YEL
RED/BLU
DRIVER'SSEATBELTswtTcHf CLOSED r Unbuckled )(OPEN :Buckled -.1
BEMINDEBLIGHT(r 4w)
BLK
G401
BL(I-tr-l
G552
23-64
tGNITtON SW lCrl
BLKryEL
KEY.IN/SEAT BELTand LIGHTS-ONBEMINDER CIRCUITNTERMITTENT WIPER RELAY CIRCUlT
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Page 1225 of 1395
< - ELK/WHT
S'TARTEBCUTRELAY
A,/rGEARPOSrr 0N SWTTCH(CLOSED :ln postion Eor N)
COMBINATONLIGHT SWITCH
\-/
IRED/GRN
I
.l-
NTEGRATED CONTROL UNIT
POWERDOOR LOCKCONTROL UNIT
I B1o PowERBLU/RED DOOR LOCK
I CONTFOL UN T
IY
F r,r'tro J
BLUi RED
"l\
u/
llon. no*
155,1'*IaCLOSED Keylnseded
| \oPEN Key rcmoved
8LK
4
G40r
LTGRN/RED LTGRN/RED LTtl
/rh d[)v !s-l
I FFONT I LEFTI PASSENGEBS I REABI DOOR | 00ORoDen ) lSwlTcH I SWITCHdosedJ J f C-OSED : ooot ooer ) | f CLOSED : Door opel
| ( ooE Doot dosed,r | \oPEN Doo' closed
tl_L -._:-
1,,,,,"
Yilei'rGRN/RED
. BNAKE FLUIOLEVEL SWITCH.PARKING ERAKEswrTcH (usA)
A8
BRAKE BULBCHECKCIFCUTKEY.IN]SEAT BELT and LIGHTS'ONREMINDER C RCU T
23-65
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Page 1227 of 1395
GRY
IGRN
I
rql)
Y4-orotI POSTT1ON SWTTCH (A/T)I (cLosED In posrlion Eor NII . CLUTCNI INTERLOCKI swrTcH (M,T)I /CLOSED :Clulch Dedal\
| \lullydeprsssed I
II8LK
{
Gl01 (A,T)
f;iillrvrr
-"'-},,,,,"
Y l1eff E
v**JT"
g
' BFAKE FLUIDLEVEL SWITCH'PARKING BRAKEswrTcH (usA)
A8A6 INTEGRATED CONTROL UNIT
KEY]N/SEAT BELT and LIGHTS.ONREMINDER CLRCUIT
COMBlNATIONLIGHT SWIlCH
\-7
IREO/GFN
KEYLESS/POWERDOOB LOCKCONTROL UNlT
V
GFN/nED+-]
LTGRN/R€D LT GRN/RED
tl
d[' 4P'\\s.i
EF's l*'n IFF^I'
13fft" l39P*:Door oper ) | fCLOSED. Doo'open ) | fCLO#D. Door ooe. ). Door dos€d,
I
\oPE . 000' closed,
|
\oPE Door ciosed,
ll-- --
,,,[:
ltrh::ffIxl,,'.l'"
l*,*,J IBLU/ BED I
AA
Y Y*,u,.,
I cvro | Bft_oi|l
sl:$P)l lHfi.#' Hrtrff"% ) l
(3!?i".
TI:l
G40tG402
6
DRIVER'SSEATBELTswrTcHrcLosED(OPEN
YEL
RED/BLU
SEAT EELTREM NDERLIGHT(1.4W)
\-
i
I
:
*,
/BLU RED/BLU
q
FEO/BLU
I
dF)
Y*lsE
13fr
l(3BtK
4
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Page 1230 of 1395

lntegrated Control Unit
Input Test -'97 Model (cont'd)
At----------+A7
Key-in/Seat Belt Reminder, Lights-on Remindor System:
Cavity WireTest conditionTest: Desired rosultPossible cause if re3ult is nol obtainod
Bulb Check System (Brake System Light):
Cavity WireTest conditionT6st: DGsirgd rosultPossible cause if resuh is not obtainod
23-70
A8
Combination light
switch ON
Check for voltage to ground:
There should be battery voltage.
Blown No.30 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty combination light switch
An open in the wire
B7R ED/BLU
lgnition switch ON {lll.
and driver's seat belt
switch unbuckled
Check for voltage to ground:
There should be 1 V or less.
Poor ground (G552)
Faulty seat belt switch
Blown seat belt reminder light
bulb
An open in the wirelgnition switch ON (ll),
and driver's seat belt
switch buckled
Check for voltage to groundl
There should be 4 V or more.
B9GRN
Driver's door openCheck ior voltage to ground:
There should be 1 V or less.
. Faulty driver's door switch. An open in the wire
Driver's door closedCheck for voltage to ground:
There should be 4 V or more.
810BLU/RED
lgnition key insened
into the ignition key
switch
Check for voltage to ground;
There should be 1 V or less.
Poor ground (G401, G,[02)
Faulty ignition key switch
An open in the wire
lgnition key removed
trom the ignition key
swrtch
Check for voltage to ground:
There should be 4 V or more.
A4
lgnition switch ON { ll),
brake fluid reservoir
full, and parking brake
tever oown
Connect to ground: Brake system
light should come on.
Blown No. 25 (7.5 A) iuse in the
under-dash fuse/relay box
Blown brake system light bulb
An open in the wire
A13
lgnition switch at
START (lll), and
A/T gear position
switch E or E
Check for voltage to ground:
There should be battery voltage.
Blown No.31 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty starter cut relay
Faulty A/f gear position switch
Poor ground (G101)
An open in the wire
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Page 1234 of 1395

Integrated Control Unit
A1 --------> A7
Input Test -'98 - 00 Models (cont'dl
YEL/BLULT GRNWHT/BLK
GRN/BLKLT GRN/REO
Wire side offemale terminals
A8------->A14WHT/BLK
Key-in/Se8t Beft Reminder, Lights-on Remindol System:
BLU/RED
Cavity WireTest conditionTest: Desired resultPossible caus€ it result is not obtained
Bulb Check System lBrake System Lightl:
Cavity WireTest conditionTest: Desired resultPossible caus€ if result is not obtained
A4
lgnition switch ON (ll),
brake fluid reservoir
full, and parking brake
lever down
Connect to ground: Brake system
light should come on.
Blown No. 25 (7.5 A) fuse in the
under-dash fuse/relay box
Blown brake system light bulb
An open in the wire
A13
lgnition switch at
START ( lll), and
A,/T gear position
switch E or E
Check for voltage to ground:
There should be battery voltage.
Blown No. 31 {7.5 A) fuse in the
under-dash fuse/relay box
Faulty sta rter cut relay
Faulty A,/T gear position switch (A,/T)
Faulty clutch interlock switch (M/T)
Poor ground {G101: AfI. G401 and
G402: M/T)
An open in the wire
23-74
A8
Combination light
switch ON
Check for voltage to ground:
There should be battery voltage.
Blown No. 30 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty combination light switch
An open in the wire
RED/BLU
lgnition switch ON ( ll),
and driver's seat belt
switch unbuckled
Check for voltage to ground:
There should be 1 V or less.
Poor ground {G552)
Faulty seat belt switch
Blown seat belt reminder light
bu lb
An open in the wirelgnition switch ON (ll),
and driver's seat belt
switch buckled
Check for voltage to ground:
There should be 4 V or more.
814GRN
Driver's door openCheck for continuity to ground:
There should be continuity,
. Faulty driver's door switch. An open in the wire
Driver's door closedCheck for continuity to ground:
There should be no continuity.
B8BLU/RED
lgnition key inserted
into the ignition key
swrtch
Check for voltage to ground:
There should be 'l V or less.
Poor ground (G401, G402)
Faulty ignition key switch
An open in the wire
lgnition key removed
from the ignition key
switch
Check for voltage to ground:
There should be 4 V or more.
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Page 1248 of 1395
lgnition Key Light System -'97 Model
Circuit Diagram
IJNDER-HOOD FUSE/HELAY BOXBATEBY l-Noj',roo{ l;;f
tF*-'--ff::f-*"-l
.l-----
| ; )"t li|illsx"r
I
WNT/GRN
WHT/CRN
I
,k ,0r,, o,u( P I KEYLGHT
Y
{14w)
IWHT/BLK
OR VER'S000R9!rl9rl^ ^I ULU5EU:UOOrOpen I(OPEN :Door dosed J
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Page 1249 of 1395

Control Unit Input Test
l. Bemove the driver's dashboard lower cover and the knee bolster (see section 20).
2, Disconnect the 5P connector from the control unit.
3. Inspect the connector and socket terminals to be sure they are all making good contact.
. lf the terminals are bent, loose orcorroded, repairthem as necessary, and recheck the system.
. lf the terminals look OK, make the following input tests at the connector.- lf any test indicates a problem, find and correct the cause. then recheck the system.
- lf all the input tests prove OK, the control unit must be faulty; replace it.
IGNITION KEY LIGHTCONTROL UNIT
5P CONNECTOR
\
))
Test conditionCavityWireTest: Desired resultPossible cause if r€sult is not obtained
BLKUnder all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground {G401, G402}. An open in the wire
'IWHT/GRN
lgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage.
. Blown No. 33 (7.5 A) fuse in the
under-dash fuse/relay box. An open in the wire
GRN
Driver's door openCheck for voltage to ground:
There should be 1 V or less.
. Faulty driver's door switch. An open in the wire
Driver's door closedCheck for voltage to ground:
There should be 4 V or more.
WHT/BLK
Under all conditionsConnect to ground: lgnition key
light should come on.
Blown No. 33 (7.5 A) fuse in the
under-dash fuse/relay box
Blown ignition key light bulb
An open in the wire
23-89
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Page 1265 of 1395
Horn Test
1. Remove the front bumper (see section 20).
2. Disconnect the 2P connector from the horn
3, Remove the horn.
2P CONNECTOR
Test the horn by connecting battery power to one
terminal and grounding the other. The horn should
sound.
4.
HORN
23-105
5. lf the horn fails to sound, replace it
Circuit Diagram
}-BLU/FED
I
BLUi FEO BLU/RED
II
g)iirrN I
tlBLK BLK
ll
IBLK
I
I
I
G201
fl"'
LOWHORN
KEYLESSiPOWEFDOOR LOCKCONTROLUNIT
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