Page 1253 of 1413

1NUnder all conditionsCheck for continuity to ground:
There should be continuitv.
. Poor ground (G201, G4O1). An open in the wire
Under all conditionsCheck for voltage to ground:
There should be battery voltage.
. Blown No. 3 (7.5 A) fuse in the
under-dash fuse/relay box. An oDen in the wire
F
lgnition switch ON {ll)Check for voltage to ground:
There should be bsttery voltage
. Blown No. 15 (10 A) tuse in the
under-dash fuse/relay box. An open in the wire
All Systems:
No. TsrminalT€st condition
R€ar Window Detogger Timer System:
No. WireTost condition
Intermittent Wip6r Relay System:
Wir€/
No. TerminalTest condition
T6st: Desired rosult
Test: Dosiled result
T€Et: Desir6d result
Possibla cause it result is not obtained
Possible cause il rosult i8 not obtained
Possiblo cause if rosult is not obtained
(cont'd)
IYEL
Defogger switchpushedCheck lor continuity to ground:
There should be continuity asthe switch is Dushed.
Faulty defogger switch
Poor ground {G201, G4O1}
An open in the wire
BLUiYEL
lgnition switch ON (ll)Connect to ground: The rear
window defogger should work
and the detogger switch indica-
tor light should come on.
Blown No. 13 {7.5 Al fuse in the
under-dash fuse/relay box
Faulty defogger relay
Blown bulb
An open in the wire
,|YEL/BLU
lgnition switch ON (ll)
and windshield wipet
switch INT
Check tor voltage to ground:
There should be battery voltage
Bfown No. '14 l2O Al fuse in the
under-dash fuse/relay box
Faulty windshield wiper switch
An oDen in the wire
BLU/WHT
ano
BLUiGRN
Windshield wiper
switch OFF or INT
and wiper blades inpark position
Check for continuity between
the BLUMHT and BLU/GRN ter-minals: There should be
continuity.
Faulty windshield wiper switch
Faultv windshield wiDer motor
An open in the wire
.Elgnition switch ON (lllCheck for voltage to ground:
There should be battery voltage.
. An open in the wire
*BLK/GRNlgnition switch ON (ll)
and windshield washer
motor switch ON
Check for voltage to ground:
There should be battery voltage.
. Faulty windshield washer switch. An open in the wire
*: With combined washer-wiper operation
23-147
Page 1254 of 1413

Integrated Control Unit
Input Test (cont'd)
Engine Oil Pressure Indicator Flashal System:
Wire/
rWith combined washeFwipot operation
Test: Desired resultPossiblo c€use if r6rult is not obtainodNo. TelminalTsst condition
M
1Engine runningCheck for voltage to ground:
There should be battery voltage
. Faulty charging system. An oDen in the wire
YEL/RED
lgnition switch oFFCheck for continuity to gtound:
There should be continuitv.
. Faulty engine oil ptessure switch
. An oDen in the wire
lgnition switch ON (ll)Check indicator light. lf the light
does not come on, Sttach the
YEL/RED terminal to ground:
The light should come on as the
ignition switch is turned ON.
. Blown bulb. An open in the ware
Start the engine.Check for voltage to ground:
There should be battery voltage
Insufficient oil
lmproper lubrication
Faulty engine oil pressure switch
Key-in/Seat Bolt Reminder Systam:
No. WilaTest condition
NOTE: Refer to page 23-125 for the seat belt switch test.
Test: Dosired lesuhPossible causo if resuh is not obtainod
23-148'
GRN/BLU'Driver's door openCheck for continuity to ground;
There should be continuitv.
. Faulty driver's door switch
. An ooen in the wire
LT GRN/
RED
Front passenger's door
switch open
NOTE: Betore testing,
remove No. 3 (7.5 A)
tuse from the under-
dash fuse/relay box.
Check tor continuity to ground:
There should be continuitv.
. Faulty lront passenger's door switch
. An ooen in the wire
LT BLU
lgnition key inserted
into the ignition switch
Check for voltage to ground:
There should be 1 V or less.
Faulty ignition key switch
Poor ground (G201 , G401)
An ooen in the wite
RED/BLU
lgnition switch ON (ll)
and driver's seat belt
unbuckled
Check lor voltage to ground:
There should be 1 V or less.
Faulty seat belt switch
Poor ground {G551)
An open in the wire
;.rqFft,
Page 1255 of 1413

Bulb Check System
No. Tsrminal
(blake system lightl
Test condition
Lights-on Romind6r Systom:
Wire/
No, ToiminalT6Et condition
Side Markol Light Flashar System:
Wiro/
No. TerminalTest condition
Tost: Desirod resuhPossibls caus6 it result is not obtainod
Tost: Dositod rosuhPossibl6 caus6 if rosuh is not obtainod
Tast: Desired rosultPo$ible cause if result is not obtained
IM
lgnition switch at
STARTCheck lor voltage to ground:
There should be battery voltage.
Blown No. 18 {7.5 Al fuse in theunder-dash fuse/relay box
Faulty clutch int€rlock switch or
starter cut relay {M/T}Faulty neutral position switch (A/T)
An open in the wire
D
lgnition switch ON (ll),
brake fluid reservoir
tull, and parking brake
lever down
Connect to ground: Brake
system light should come on.
. Blown brake system light. An oDen in the wire
GRN/8LU'Driver's door openCheck for continuity to ground:
There should be continuity.
. Faulty driver's door switch. An oDen in the wire
H
Combination light
switch ON.
Check for voltage to g.ound:
There should be battery voltage
Blown No. l9 (1O A) tuse in the
under-dash fuse/relav box
Faulty combination light switch
An oDen in the wire
5
Connect the I terminal
to the J terminal.
Check chime operation: Chime
should activate each time the
batterv is connected,
. Faulty chime. An open in the wire
1H
Combination light
switch ON
Check for voltage to ground:
There should be battery voltage
. Blown No. 19 (1O A) tuse in the
under-dash fuse/relay box. An open in the wire
GRN/BLU1
lgnition switch ON {ll)and turn signal switch
to "Left"
Check for voltage to ground:
It should change from
O-12-O V repeatedly.
Blown No. 26 (10 A) luse in theunder-dash fuse/relav box
Faulty turn signal/hazard relay
An oDen in the wire2GRN/YEL
lgnition switch ON {ll)and turn signal switch
to "Right"
4GRN/WHTlgnition switch ON (ll)
and turn signal switch
to "Left (or Rightl":
Connect the H terminal
to the GRNMHT(or GRN/REDl) terminal.
Check the front side marker
light: Left (or Right) front sidemarker light should come on asthe batterv is connected.
Blown bulb
Poor ground (G2O1, c3O1, G4O1lAn open in the wire
GRN/REDl
23-149
Page 1260 of 1413
Lighting System
Circuit Diagram (USAI
UNOER - HOOD RJSE/NELAY 8OX
-r lo| ,-. otFDIMMER I'I
No.2l|l0A]iil;
)
ttNo.lo '1 No,22 ''t No.gtloAr (0oA) (floAr
IT
HEADLIGHTRIGHTHEAOUGHT
HIGH EEAMINOICATORLIGHTfi.4W)@il,", @f,*,6il* 6p*
. PAR(II{G UGHI. TAILUGI{TS. UCENSE PI.ATE
UtrloER - D SHRJSE/RELAYsox
REO/GNN
8LK
I
G20lG401
DASH UGI{TS88rGr{T ESSCONTrcUTRDASH UGHTSPAR(II{C UGHTSTAItUGt{TSUCENSE PI.ATEUGHTS
8tK
G301G20' |G40l
23-154
Page 1263 of 1413

T€st conditionTest: Desirad losultPossibla cause if rosult is not obtainad
1BLKUnder all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground {G201, G401). An open in the wire
WHT/YEL
Under all conditionsCheck Jor voltage to ground:
There should be battery voltage.
. Blown No. 1 7 { 10 A} luse in the
under-dash tuse/relay box. An ooen in the wiae
YEL/BLK
lgnition switch ON (ll)Check tor voltage to ground:
There should be battery voltage.
Blown No. 16 (7.5 A) tuse in the
under-dash fuse/relay box
Faulty ignition switch
An open in the wire
4RED/WHT
Combination light
switch in "O" positionCheck for voltage to ground:
The.e should be battery voltage.
Blown No. 40 {5O A) fuse in the
under-hood fuse/relay box
Faulty combination light switch
An ooen in the wire
5WHT/REO
Combination light
switch is OFF; connect
a iumper wire between
the YEL/BLK and
WHT/RED terminals,
then turn th6 ignition
switch ON.
Left and right headlight (high
beaml should be on but dim, and
high beam indicator light should
come on.
Poor ground (G201 . G401 . G301)
Blown bulbs
Faulty daytime running lights
reststor
An open in the wire
ttGRN/RED
lgnition switch ON (ll),
brake fluid res€rvoil
full, and parking brake
lever down
Connect to ground: The brake
system light should come on.
Blown No. 15 (1O A) tuse in the
under-hood fuse/relay box
Blown brake system light
An open in the wire
RED/GRNParking brake lever upCheck for continuity to ground:
The.e should be continuitv.
. Faulty brake lever switch. An open in the wire
23-157
Page 1277 of 1413

Controller Input Test
NOTE: 8e careful not to damage the controller and the
instrument panal.
1. Remove the instrument panel lrom the dsshboard
{see page 23-1181.
2. Remove the dash lights b.ightness controller {rom
the dashboard. then disconnect the 3-P connector.
Inspect the connector and socket terminals to be
sure they are all making good contact.
a lf the terminals are bent. loose o. corroded, repsir
them as necessary, and recheck the system.
a It the terminals look OK, make the tollowing in-
Dut tests at the connector.- lf any test indicates a problem, find and cor-
rect the cause, then recheck the system.- lf all the input tests prove OK, the dash lights
brightness controller must be faulty; replace it.
View from whe side
Possible causo it resull is not obtained
3-P CON[{ECTOR
OASH LIGHTSCOI{TROLIER
WireTost conditionTogt: Dasired resuh
1BLKUnder all conditionsCheck for continuity to ground:
There should be continuitv.
. Poor ground (G20 l , G4O1). An open in the wire
RED/BLK
Headlight switch ONCheck Jor voltage to ground:
There should be battery voltage.
Blown No. 19 (1O A) tuse in the
under-dash fuse/relay box
Faulty combination light switch
An open in the wire
aREDHeadlight switch ONConnect to ground: Dash lights
should come on full bright.
. An open in the wire
23-171
Page 1279 of 1413
FROiTTPASSEiIGEB'SDOOf,SWTCH
GRr{/Bt U t-t
I
q*",,.,
I DOOR
I swncH
I
I:
U DEN-DASHFUSE/RELAY 8OX
LT
II{IEGRATED 1cotlrnor II,NIT I
GRI{
I
l**,-0,,nI rNorcAToRI UGHT
IY
i'GRN
d_
f-:
J
23-173
lS.d.nl
TBUi{KUGHTt3.4Wl
Circuit Diagram
Hltcnb&n-------1
CARGOASEAUGHTt3.4Wl
UNOER - HOOD FUSE/RELAY 8OX
Page 1286 of 1413

Back-up Lights
Manual Transmigsion:
NOTE: Check the No. 1 5 { 1 O A) fuse in the under-dash
fuse/relay box befote testing.
'1. Test the back-up light switch by placing the shift
lever in reverse and turning the ignition switch to ON
(
).
2. It the back-up lights do not go on, check the back-
up light bulbs in the taillight assembly.
3. lf the tuse and bulbs are OK. disconnect the connec-
tor from the back-up light switch.
terminal sade
This washer must
always be replacedtor the switch tolunction properlY
and to ptevent ollteaKs.
4. With the shift lever in reverse. check Jor continuity
between the A and B terminals with the switch in-
stalled.
There should be continuity.
a lf there is no continuity, replace the switch {see
section 13).
a lf there is continuity, but the back-up lights do not
go on, check for:- Poor ground (G5O3)
- An open in the wire
23-180
Automatic Transmission:
NOTE: Check the No. l 5 ( 1 O A) fuse in the under-dash
fuse/relay box belore testing.
1. Test the back-up light switch by shitting the shift
lever to l3l and turning the ignition switch ON (ll).
2. lf the back-up lights do not go on, check the back-
up light bulbs in the taillight assembly.
3. lf the tuse and bulbs are OK, disconnect the 14-P
connector from the A/T gear position switch (back-
up light switch).
Move the lever back and torth at the LBI position
without touching the push button, and check tor
continuitv between th€ C and D terminals. There
should be continuitY within the range of free plsy of
the shift lever.
a lf there is no continuity within the range oJ J.ee
play, adjust the position ot the A/T gear position
switch lsee section 141.
a lt there is continuity, but the back-up lights do not
go on,check {or:- Poor ground {G503)- An oDen in the wire
4.