Page 640 of 1395

Electrical Troubleshooting ('98 - 00 Modelsl
Troubleshooting Flowchart - E or @ Indicator Light Does Not come on(cont'd)
PCM CONNECTORS
B {25P} C (3D (16P1
n f,-ff nt f,Fjrti.trnnmflnr
D4 INO or D IND IGRN/BLKI
From page 14-123
Measure D4IND or D lNDVoh.ge:'L Turn the ignition switch OFF.2. Connect the B (25Plconnector
to the PCM.3. Connect a djgital multimeterto the A14 and 820 or B22 terminals,4. Turn the ignition switch ON(ll), and make sure that voltageis available for two seconds.
Check lor open in the wireb€tween the Al/t terminal .nd thegeugo a$eftbly. lf wi.a is OK.check tor a fautty E or E indica-tor light bulb or a faulty gaugeass€mbly p.inted circuit board.
Check D4 IND or D IND for aShort CircuitiCheck for continuity between theA14 terminal and body ground.
Ropair short in tha wiro b€twesnthe A14 termin.l and th€ gaugo.ssemblv.
Check tor looso telminal tit in thePCM connoctors. Chock the A/Tgear position swiich. It neces-3ary, substitute a known-goodPCM and rech€ck.
c (31P)
LG2 (BRN/BLKI
Wire side of female terminals
D {16P)
D4 IND or D IND
14-124
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Page 647 of 1395

Electrical Troubleshooting ('99 - 00 Modelsl
The O/D OFF indicator light doos
not come on when the ignition
switch i3 tiBt tulned ON {lll. {lt
should come on lor about two
seconds and then go outl
Check the O/D OFF Indicatol
Light:1. Turn the ignition switch ON (ll).
2. Shift to E position, and Pressthe Over-Drive (O/D) switch.
Chock lor looae t.rmin.l tit in tho
PCM connoctor3. lf nocesstrY,
substitute a known'good PCM
and r.chock.
Does the O/D OFF indicator
light come on?
Ch€ck O/O IND lor an OPen Cir-
cuit:1. Turn the ignition switch OFF
2. Disconnect the B (25P) con'
nector Irom the PCM.
3. Disconnect the 14P connector
from the gauge assemblY.
4. Check {or continuity between
the 819 terminal and the No.
6 terminal of the gauge
assembly 14P connector.
Replir open in the wiro botween
the 819 terminal and gauge
.ssemblY | 4P connector.ls there continuitY?
Check for a fauhv O/o OFF indi'
cator light bulb or . laulty gluge
a3sembly printed circuit bo.rd.
Troubleshooting Flowchart - o/D oFF Indicator Light Does Not Gome On
A (32Pt
PCM CONNECTORS
B t25Pl c (31
Wire side oI lemale terminals
a
c (3rPt
GAUGE ASSEMBLYCONNECTOR I14P)O,/D IND ILT BLU}
14-131
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Page 964 of 1395

Troubleshooting
ABS lndicator Does Not Come On
The ABS indicator does notcome on when ignition switch isturnod ON lll).
check the METER {7.5 A} fuse inthe underCash fuse/relay box,and reinstaltthe fuse if it is OK.
Check for an open in the lcl ch-cuil:1. Disconnect the gauge assem-bly 5P connector.2. Turn the ignition switch ON (ll).
3. Measure the voltage betweenthe gauge assembly 5P con-nector terminal No. 5 andbody ground.
. Repair open in the wire betweenlhe METER {7.5 A) luse and thogauge assembly.. Reolece the under-dash fuse/relay box. (Opon circuit insidethe box.)
ls there battery voltage?
Check the ABS indicator bulb inthe gauge assembly.
Replace the ABS indicator bulb.
Check for a short to power in theWALP circuit:Measure the voltage between thegauge assembly 5P connectorterminal No. 1 and body ground.
Sepair short to power in the witeb€tween the gaug€ assemblyand the ABS control unil.ls there battery voltageT
Reolace the tuse and recheck.
(To page 19 42)
GAUGE ASSEMBLY 5P CONNECTOR
Wire side of female terminals
(cont'd)
19-41
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Page 1134 of 1395

Evaporator Temperature
SensorPower Transistor
Test
Dip the sensor in ice water, and measure the resistance
with a digital multimeter. Then pour hot water on the
sensor, and check lor change in resistance.
Compare the resistance reading between the No. | 8nd
No. 2 terminals of the evaporator temperature sensor
with the specifications shown in the following graph;
resistance should be within the specifications.
EVAPOBATOR TEMPERATURE SENSOB
Terminal side ol male terminals
4
RESISTANCEko
t0
50 68 86.F10 20 30'c
22-44
12V 1.2-3.1W
No. 2 ILT GRN/BLK)
No. I IBLU/BLK)
Test
1.Disconnect the 3P connector from the oower tran-
st$or.
Carefully release the lock tab on the No. 2 terminal in
the 3P connector, then remove the terminal and insu-
late it from body ground.
Connect a 1.2 - 3.4 W bulb between the No, 1 and
the No,2 cavity on the 3P connectol
Reconnect the 3P connector to the power transistor.
Turn the ignition switch ON (ll). and check that the
blower motor runs.
a lf the blower motor runs at half soeed the oower
transistor is OK, replace the heater control panel.
. lf ths blower motor does not run at half soeed,
reDlaca the Dower transistor.
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Page 1215 of 1395
Gauge Assembly
Component Location Index
SRS components are located in this area. Review the SRS component locations, precautions, and procedures in the SRS
section {24} before performing repairs or service.
I x 1.25 mm24 N.m {2.4
VEHICLE SPEED SENSOF {VSS'Troubleshooting, page 23-62
GAUGE ASSEMBLYGau ge/lndicator/TerminalLocation Index, page 23-56Bulb Locations, page 23-57Removal, page 23-61
J-
FUEL GAUGE SENDING UNITSee section 1 l
PARKING BRAKE SWITCH
COOLANT TEMPERATURE GAUGESENDING UNITBRAKE FLUID LEVEL SWITCH
ENGINE OIL PRESSURE SWITCH
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Page 1217 of 1395
l-
Bulb Locations
TAILGATE INDICATORLIGHT (,I.4 W) CHARGING SYSTEM LIGHT (1.4 WI
GAUGE LIGHT {1.4 WIGAUGE LIGHT I1,4 WIBRAKE SYSTEMLTGHT 11.4 WlLOW ENGINE OIL PRESSUREINDICATOR LIGHT {1./r W}SEAT BELTREMINDER LIGHT {1.' W'HIGH BEAMINDICATOR LIGHT
LOW FUEL INOICATOBLIGHT 13 WI
MALFUNCTIONINOICATORLAMP {MIL)BULB I1.4 WI
{1.4 Wl
RIGHT TURN SIGNALINDICATOR LIGHT I1.' WI
GAUGE LIGHTS 13 WI
LEFT TURN SIGNALINDICATOR LIGHT {1,4 W}
GAUGE LIGHT
t3 wl
SRS INDICATOR ('1./t W)(On the printed circuit board)
1,.
A/T GEAR POSITIONINDICATOR {1.12 x 7}(On the printed
circuit board)GAUGE LIGHT {3.' W}
ABS INDICATOR (1,4 W)
lOn the printed circuit board)cRutsE tNDtcAToR 11.r2 w)(On the printed circuit board)
f-= F -
J
23-57
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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 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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