Page 1251 of 1395

Controller Input test
NOTE: The control unit is built into the dash lights bright-
ness controller.
1.Carefully pry the controller out of the dashboard.
Disconnect the 3P connector trom the controller,
Inspect the connector terminals to be sure they are
all making good contact.
. lf the terminals are bent, loose, or corroded, repair
them 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 cor-
rect the cause. then recheck the system.- lf all the input tests prove OK, the controller
must be taulty; replace it.
CsvityWireT€st condhion
Wire side oflemale terminals
Possible cause if result is not obi8inod
OASH LIGHTSBRIGHTNESSCONTROLLER
Tsst: Desired resuli
1R ED/BLK
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
2BLKUnder all conditionsCheck for continuity to ground:
There should be continuitv.
. Poor ground (G401, G402). An open in the wire
5RED
Combination light
switch ON
Connect to ground:
Dash lights should come on full
bright.
. An open in the wire
23-91
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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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Page 1271 of 1395
EI
IGNITIONSWTCH
-f "r?h\_--,' I
I
I
I
WHT/8LK +WHT
a-Circuit Diagram
BATTERY
@-*"
l-
IJ
l"8LK
G401G402
N0.41 {100A) N0.42 (404)
UNDER-HOOD FUSE/REI-AY BOX
REAs WINDOW DEFOGGER SWITCHB1 {in ihe heater control panel)
b}l!;r.r
23-111
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Page 1273 of 1395
Switch Input Test
NOTE: Before testing, check for blown No. 17 (7.5 A)
fuse in the under-dash fuse/relay box.
1. Remove the center panel {see section 20).
REAR WINOOW DEFOGGER SWITCHlin the heater control oanel)CENTER PANEL
Check for voltage between the 84 and 87 terminals
in each switch position when battery power is con-
nected to the B l terminal.
OFFless than 0.4 V
ONbaftery voltage
Ol-
I
-
23-113
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Page 1274 of 1395
Wipers/Washers
Component Location Index
SRS components are located in this area. Review the SRs component locations, precautions, and procedures in the s6ssection (24) before performing repairs or service.
REAB WINDOW WIPER MOTOBT€st, page 23-120WPSR/WASHER SWITCHTest. page 23- l't9
REAR WINDOW WIPERCONTROL UNlT 137 mod.llInput test. page 23-118
WINDSHIELD WIPER MOTORTost, page 23-119
UNDER.DASH FUSE/RELA
INTERMITTENT W|PEN RELAYCIBCUIT, REAR WINDOW INTERMTNENTwlPER RELAY CIBCUIT l'98 - 0O mod.t.lBOX (ln the integrated control unit)Input test, page 23-68
23-114
-
n
tff
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Page 1277 of 1395
Circuit Diagram (Rear Windowl -'98 - 00 Models
BATTERYUNDER.HOOD FUSEi RELAY 80X
N0.41 (100A) N0.42 (40A)
@*,'WHT/BLK +WHTGNIT ONSW TCH
REAR WINDOWWPER MOTOR
Ot-
GRN/BLK
I
A n',$s".,,,
vil8t8E
IBLK
I
n-
G202
BLK
n_-:
G611G631
UNDEF-DASHFTJSE/RELAYBOX
JDLI OFF
INTEGRATED CONTROL UN T/Has bo ll-in re wndow\
t nlermillenl w per relay ]
BLK
.L-
G40lG402
I
-
23-117
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Page 1278 of 1395

Wipers/Washers
Rear Window Wiper Gontrol Unit lnput Test -'97 Model
Remove the driver's dashboard lower cover and theknee bolster {see section 20).
Disconnect the 8P connector from the control unit.
Inspect the connector and socket terminals to be surethey are all making good contact.
a lf the terminals are bent, loose, or corroded, repair
them 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 are OK, replace the control
UNII.
1.
LT GRN/BLK
T GRN/RED LT
12
16
GRN/BLK
8P CONNECTOF
CavityTest condhion Test Desir€d r93uhPossible cause il rasuh is not obtained
4BLKUnder all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground (G401, c402). An open in the wire
GRN
lgnition switch ON (lllCheck for voltage to ground;
There should be battery voltage.
Blown No. 3 (10 A) fuse in the
under-dash fuse/relay box
An open in the wire
'lLT GRN/
RED
lgnition switch ON ( ll),
and rear window
wiper/washer switch
ON
Check for voltage to ground:
There should be battery voltage.
Blown No. 3 (10 A) fuse in the
under-dash fuse/relay box
Faulty rear window wiper/washer
switch
An open in the wire
LT GRN/
BLK
lgnition switch ON (lllCheck for voltage to ground;
There should be battery voltage.
Blown No. 3 {10 A) fuse in the
under-dash fuse/relay box
Faulty rear window wiper motor
An open in the wire
LT GRN
lgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage.
Blown No.3 {10 A)fuse in the
under-dash fuse/relay box
Faulty rgar window wiper motorAn open in the wire
5GRN/BLK
lgnition switch ON lll),
and rear window
wiper/washer switch at
washer position
Check for voltage to ground:
There should be battery voltage.
Blown No.3 (10 A) fuse in the
under-dash fuse/relay box
Faulty rear window wiper/washer
switch
An open in the wire
23-118
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Page 1281 of 1395
Hatch Glass Opener
Circuit Diagram
BATTEFY
@*"
UNDER.H@D FUSE/RELAY BOX
|-*;rr^!...',r,*;l.......1<\o<
+l
I
I
IWHT/GRN
WHT/GRN
II
rt
KEYLESSiPOWEF DOOB LOCKCONTROL UNIT
V
IIIYEL
HATCHGLASSOPENERsoLENOr0
J
TBLK
I
out,G631
WHT/GBN
Ot-
23-121
1. Remove the dashboard lower cover (see section
20).
2. Disconnect the 2P connector from the switch.
3. Remove the switch from the dashboard lower
cover.
Switch Test
DASHBOANDLOWER COVER
HATCH GLASSOPENER SWITCH
Check for continuity between the No. 1 and No. 2
terminals.
. There should be continuity when the switch is
pushed.
. There should be no continuity when the switch is
released.
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