Page 1572 of 2189
lgnition System
Component Location Index
IGNITION TIMING CONTROL SYSTEM
. Troubleshooting, section 11
. ldle speed Inspection/Adjustment. section 11
. Inspection and Setting, page 23-105
SERVICE CHECK CONNECTOR {2P}Iwiie colors: 8RN and BLKI
TEST TACI{OMETER CONNECTOB
IGNITION WIRESlnspection and Test, page 23-110
PLUGSInspection, page 23 1 11
Replacement, page 23'106Overhaul, page 23-107lgnition Coil Test, page 23'110lgnition Control Module llCM)Input Test, page 23-109
23-102
Page 1575 of 2189
-lgnition Timing Inspection and Setting
1.Check the idle speed, and adjust it it necessary (see
section 'l '1 ).
Pull out the service check connector 2P (BRN and BLK
wires) from the connector holder located under the
dash on the front passenger side, then connect the
SCS service connector (T/N 07PAZ - 0010'100) to it.
Start the engine. Hold the engine at 3.000 rpm with
no load {A,/T in E or E. M/T in neutral) until the
radiator fan comes on, then let it idle.
Connect the timing light to the No. 1 ignition wire,
then point the light toward the pointer on the timing
belt cover.
Check the ignition timing in no load conditions:
headlights. blower fan, rear window defogger, and
air conditioner are not operating.
lgnhion Timing:
D15Y5. D16Y7, Dl6Yg engines
816A2 engine
MIT16" 12' BTDC (RED) during idling in
neutral
M/T12't 2" BTDC (RED) during idling in
neutral
l2'r 2" BTDC {RED) during idling in S
orE
POINTEB
RED MARK
23-105
ro ADVANCE -<;,
6. Adjust the ignition timing if necessary, as follows.
Loosen the distributor mounting bolts. and turn the
distributor ignition (Dl) housing counterclockwise to
advance the timing, or clockwise to retard the tim-
ing.
MOUNTING BOLTS18 N'm (1.8 kgfm, 13lblftl
Tighten the distributor mounting bolts, and recheck
the ignition timing.
Disconnect the SCS service connector from the ser-
vice check connector.
7.
Page 1581 of 2189
1. Inspect the electrodes and ceramic insulator for:
Spark Plug lnspection
Crackedinsulator
2.
[ . t.p,op", grp
| . Oil-fouling
i . Carbon deposits
| . Cracked center
I electrode insulator
Burned or worn electrodes may be causecl by:
. Advanced ignition timing
. Loose spark plug
. Plug heat range too low
. Insufficient cooling
Fouled plugs may be caused bY:
. Retarded ignition timang
. Oil in combustion chamber
. Incorrect spark plug gap
. Plug heat rangetoo high
. Excessive idling/low speed running
. Clogged air cleaner element
. Deteriorated ignition coil or ignition wares
D16Y5, D16Y7, D'16Y8 enginel
. Adjust the gap with a suitable gapping tool, and
replace the plug il the center electrode is round-
ed as shown below.
Electrode Gap:
1.1 mm
{o.{X:l in)ROUNDEDELECTRODE
Standard 1.1r8 ' mm (0.043i800oin)
Worn or detormed
1T
23-111
3. 816A2 engine:
. Do not adjust the gap of a platinum tip plug;
replace the spark plug il the center electrode is
rounded or it the gap is not within the specifica
tro ns.
Electlode Gap:
Standard 1.3181mm (0.051 !3oo" in)
flOUNDED ELECTROOE
',/
@_
:
Platinum tip
NOTE: Use only the spark plugs listed below
4. Apply a small quantity of anti seize compound to
the plug threads, and screw the plugs into the cylin
der head finger-tight. Then torque them to 18 N m
11.8 kgf.m, 13lbnft).
Engine TypesSpark Plugs
D16Y5ZFR4F 11 (NGK)
KJ14CR-111 (DENSOi
D16Y7,
D,I6Y8
ZFRSF-11 (NGK)
KJ16CR-111(DENSO)
81642PFR6L.13 (NGK)
PK2OPR.L13 (DENSO}
Page 1588 of 2189
Charging System
Troubleshooting (cont'd)
Alt6rnator/Regulator Test
NOTE: Make sure the baftery is sufficiently charged (see page 23-9j).
FIELDSELECTOR
LOAD AOJUSTER{CARAON PILEI
FULL FIELOTESTERLEAD IBLUI
VOLTMETERNEGATIVELEAD IBLKI
VOLTMETERPOStTtVELEAD (REDI
NEGATIVE TESTERCABLE IBLKI
POSITIVE TESTERCABLE IREDI
TEST SELECTORswrTcH
INDUCTIVEPICK-UP
IGRNI
INDUCNVEPICK.UP
TIVETEBMINAL
Alte.nator/Regulator Test'1 :L Connect a Sun VAT 40 (orequivalent tester), and tu rnthe selector sw;tch to position1(staning).2. Shift to neutral (A/T in E orE) position, and start theengine. Hold the engine at3,000 rpm with no load untilthe radiator fan comes on,then let it idle.3. Raise the engine speed to2,000 rpm, and hold it there.
ls the voltage over 15.1 V?
Alternalor/Regulator Te3t-2:1. Release the accelerator pedal,and let the engine idle.2. Make sure all accessories areturned ofi. Turn the selectorswitch to position 2 (charging).3. Bemove the inductive pick-up,and zero the ammeter,4. Place the inductive pick-upover the battery ground cableso that the arrow points to thebattery negatlve terminal.5. Raise the engine speed to2,000 rpm, and hold it there.
ls the voltage less than 13.5 V?
Alternator/Regulator Test-3:Apply a load with a VAT-40 untilthe battery voltage drops tobetween 12 - 13.5 V.
tffil rCI
[ @lBt* . ,*n 'aHrl
L-;-;l rs-
23-11A
To next page
Page 1589 of 2189
The charging system is OK.ls the amperage 50 A or more?
Alternator/Regulator Test-4:
With the engine sPeed still at
2,000 rpm, fulltieid the alternator.
J
From previous page
CAUTION: The voltage will rise quickly when the allGrnator is flll-fielded Do not ellow
the vollage to exceed 18 V; il may damage the electrical syslem
NOTE: Attach a probe to a VAT 40 full field test lead, and insert the probe into the full field
access hole at the back of the alternator' Switch the field selector to the "A (GroLrnd)" posi
tion momentarilV, and check the amperage readlng
23-119
Page 1598 of 2189
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.
6x1.0mm9.8 N.m 11.0 kgf.m,22lbt.lrl
VEHICLE SPEED SENSOR {VSS)Troubleshooting, page 23-1 40
GAUGE ASSEMBLYGau ge/lndicator/TerminalLocation Index, page 23-129Removal, page 23-135Bulb Location, page 23-136Disassembly, page 23 138
PARKING BRAKE SWITCH
FLUIO LEVEL SW]TCH
23-128
ENGINE OIL PR€SSURE SWITCH
Page 1599 of 2189
JGau ge/lndicator/Terminal
With tachometer;
CONNECTOR "A"
{A/T GEAR POSITION INDICATOR}
Location lndex
CONNECTOR "8"
{GAUGE and INOICATOR)CONNECTOB "C"
CONNECTOR "D"
{ABS INDICATORI
SPEEDOMETER:Indicates 60 km/h at 637 rpm or
60 mph at 1,025 rpm o{thevehicle speed sensor (VSS).
A/T GEAR POSITIONINDICATORSee page 23 149
TACHOMETER:Indicates 100 rpm at200 pulses per minuteol the ignition controlmodule (lCMi.FUEL GAUGEENGINE COOLANT TEMPERATURE (ECT) GAUGE
(cont'd)
23-129
(GAUGE end INDICATORI
A1-----------+816
JlltlllulllllrL
c1 --------->c13
1ililil{ilrL
oooo o 0006^
)og @ @ o^o @ )'l |. o
Fl- - -> F5E1_ _ -->E5D1- --+05
oo/ \oo
Gauge/Sending Unit Test, page 23-142
Page 1600 of 2189
Gauge Assembly
Gauge/lndicator/Terminal Location Index (cont'd)
Without tachometer:
CONNECTOR "A"
IA/T GEAR POSITION INDICATORICONNECTOR "8"
{GAUGE and INDICATOR}CONNECTOR "C"
(GAUGE and INDICAIORI
CONNECTOR "F"
{SRS INDICATOR)CONNECTOR "D"
{ABS INDICATORI
SPEEDOMETER:Indicates 60 km/h at 637 rpm or60 mph at 1,025 rpm ofthevehicle speed sensor (VSS).
ENGINE COOLANT TEMPERATUFE (ECT) GAUGEA/T GEAR POSITIONINDICATOFSee page 23 149FUEL
A1 ------> 46
----> al4
B1. - --------------->B16
JilililHililil1
C1-- - --------..+C13
JililHililL
Oo_o-o O 0006
lus 0 0 Bu-. )
oo/ \oo
23-130
Gauge/Sending Unit Test, page 23 142
