ignition TOYOTA TERCEL 1996 Service Repair Manual
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 1996, Model line: TERCEL, Model: TOYOTA TERCEL 1996Pages: 1202, PDF Size: 17.43 MB
Page 530 of 1202
P19552
TOYOTA Hand-Held Tester
DLC3
P20392
SF1PR-02
P20176
P20391
- MFIFUEL PUMP
MF-5
529 Author: Date:
1996 TERCEL (RM440U)
FUEL PUMP
ON-VEHICLE INSPECTION
1. CHECK FUEL PUMP OPERATION
(a) Remove the fuse cover on the instrument panel.
(b) Connect the TOYOTA hand-held tester to the DLC3.
(c) Turn the ignition switch ON and TOYOTA hand-held tes-
ter main switch ON.
NOTICE:
Do not start the engine.
(d) Select the active test mode on the TOYOTA hand-held
tester.
(e) Please refer to the TOYOTA hand-held tester operator's
manual for further details.
If you have no TOYOTA hand-held tester, connect the positive
(+) and negative (-) leads from the battery to the fuel pump con-
nector (See step 6).
(f) Check that there is pressure in the fuel inlet hose from the
fuel filter.
HINT:
If there is fuel pressure, you will hear the sound of fuel flowing.
If there is no pressure, check the fusible link, H-fuse, fuses, EFI
main relay, circuit opening relay, fuel pump, ECM and wiring
connections.
2. CHECK FUEL PRESSURE
(a) Check the battery positive voltage is above 11 V.
(b) Disconnect the negative (-) terminal cable from the bat-
tery.
(c) Remove the union bolt and 2 gaskets, and disconnect the
fuel inlet hose from the fuel filter outlet.
CAUTION:
Put a shop towel under the fuel filter.Slowly loosen the
union bolt.
Page 531 of 1202
P20392
SST
MF-6
- MFIFUEL PUMP
530 Author: Date:
1996 TERCEL (RM440U)
(d) Install the fuel inlet hose and SST (pressure gauge) to the
fuel filter outlet with the 3 gaskets and union bolt.
SST 09268-45012
Torque: 29.0 N´m (290 kgf´cm, 22 ft´lbf)
(e) Wipe off any splattered gasoline.
(f) Reconnect the negative (-) terminal cable to the battery.
(g) Connect the TOYOTA hand-held tester to the DLC3 (See
step 1 check fuel pump operation (a) to (f)).
(h) Turn the ignition switch ON.
(i) Measure the fuel pressure.
Fuel pressure:
281 - 287 kPa
(2.87 - 2.93 kgf/cm
2, 40.8 - 41.7 psi)
If pressure is high, replace the fuel pressure regulator.
(j) If pressure is low, check these parts:
Fuel hoses and connection
Fuel pump
Fuel filter
Fuel pressure regulator
(k) Remove the TOYOTA hand-held tester from the DLC3.
(l) Reinstall the fuse cover on instrument panel.
(m) Start the engine.
(n) Disconnect the vacuum sensing hose from the fuel pres-
sure regulator.
(o) Measure the fuel pressure at idle.
Fuel pressure:
281 - 287 kPa (2.87 - 2.93 kgf/cm
2, 40.8 - 41.7 psi)
(p) Reconnect the vaccum sensing hose to the fuel pressure
regulator plug the hose end.
(q) Measure the fuel pressure at idle.
Fuel pressure:
226 - 265 kPa (2.3 - 2.6 kgf/cm
2, 33 - 37 psi)
If pressure is not as specified, check the vacuum sensing hose
and fuel pressure regulator.
(r) Stop the engine.
(s) Check that the fuel pressure remains as specified for 5
minutes after the engine has stopped.
Fuel pressure:
147 kPa (1.5 kgf/cm
2, 21 psi) or more
If pressure is not as specified, check the fuel pump, pressure
regulator and/or injector.
(t) After checking fuel pressure, disconnect the negative (-)
terminal cable from the battery and carefully remove the
SST to prevent gasoline from splashing.
SST 09268-45012
(u) Connect the fuel inlet hose to the fuel filter with 2 new gas-
kets and the union bolt.
Page 545 of 1202
Z14695
SST (Hose)
SST (Union)
O-Ring
SST
(Clamp)
Vinyl Tube
P19552
TOYOTA Hand-Held Tester
DLC3
FI3211
SST
(Wire)
Connect
FI1676
MF-20
- MFIINJECTOR
1996 TERCEL (RM440U)
(h) Install the grommet and a O-ring to the injector.
(i) Connect SST (union and hose) to the injector, and hold
the injector and union with SST (clamp).
SST 09368-41046
(j) Put the injector into the graduated cylinder.
CAUTION:
Install a suitable vinyl hose onto the injector to prevent
gasoline from splashing out.
(k) Remove the fuse cover on the instrument panel.
(l) Connect the TOYOTA hand-held tester to the DLC3.
(m) Turn the ignition switch ON and TOYOTA hand-held tes-
ter main switch ON.
NOTICE:
Do not start the engine.
(n) Select the active test mode on the TOYOTA hand-held
tester.
(o) Please refer to the TOYOTA hand-held tester operator's
manual for further details.
(p) If you have no TOYOTA hand-held tester, connect the
positive (+) and negative (-) leads from the battery to the
fuel pump connector (See page MF-5).
(q) Connect SST (wire) to the injector and battery for 15 se-
conds, and measure the injection volume with a gra-
duated cylinder. Test each injector 2 or 3 times.
SST 09842-30070
Volume:
39 - 49 cm
3 (2.4 - 3.0 cu in.) per 15 sec.
Difference between each injector:
5 cm
3 (0.3 cu in.) or less
If the injection volume is not as specified, replace the injector.
2. INSPECT LEAKAGE
(a) In the condition above, disconnect the tester probes of
SST (wire) from the battery and check the fuel leakage
from the injector.
SST 09842-30070
Fuel drop:
1 drop or less per 3 minutes
(b) Disconnect the negative (-) terminal cable from the bat-
tery.
(c) Remove the SST.
Page 546 of 1202
- MFIINJECTOR
MF-21
1996 TERCEL (RM440U)
SST 09268-41046, 09842-30070, 09843-18020
(d) Reinstall the pressure regulator to the delivery pipe (See
page MF-15).
(e) Reconnect the fuel inlet hose to the fuel filter outlet with
2 new gaskets and the union bolt.
Torque: 29 N´m (290 kgf´cm, 22 ft´lbf)
(f) Turn the ignition switch OFF.
(g) Disconnect the TOYOTA hand- held tester from the
DLC3.
(h) Reinstall the fuse cover on the instrument panel.
Page 573 of 1202
SF0WP-03
Z19295
Voltmeter
ECMVacuum
PIM
E2
Voltage Drop:
Applied
Vacuum
kPa
mmHg
in.Hg
Vo l t a ge
drop V13.3
100
3.94
0.3 - 0.5
26.7 40.0 53.5 66.7
200
7.87
300
11.81400
15.75500
19.69
0.7 - 0.9 1.1 - 1.3 1.5 - 1.7 1.9 - 2.1 MF-48
- MFIMANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
1996 TERCEL (RM440U)
INSPECTION
1. INSPECT POWER SOURCE VOLTAGE OF MAP SEN-
SOR
(a) Disconnect the MAP sensor connector.
(b) Turn the ignition switch ON.
(c) Using a voltmeter, measure the voltage between connec-
tor terminals VC and E2 of the wiring harness side.
Voltage: 4.5 - 5.5 V
(d) Turn the ignition switch to LOCK.
(e) Reconnect the MAP sensor connector.
2. INSPECT POWER OUTPUT OF MAP SENSOR
(a) Turn the ignition switch ON.
(b) Disconnect the vacuum hose from the MAP sensor.
(c) Connect a voltmeter to terminals PIM and E2 of the ECM,
and measure the output voltage under ambient atmo-
spheric pressure.
(d) Apply vacuum to the MAP sensor in 13.3 kPa (100 mmHg,
3.94 in.Hg) segments to 66.7 kPa (500 mmHg, 19.69
in.Hg).
(e) Measure the voltage drop from step (c) above for each
segment.
(f) Reconnect the vacuum hose to the MAP sensor.
Page 604 of 1202
CO0Y5-02
P20875
Above 94°C
P20883
Ammeter
Battery
- COOLINGELECTRIC COOLING FAN
CO-23
603 Author: Date:
1996 TERCEL (RM440U)
ELECTRIC COOLING FAN
ON-VEHICLE INSPECTION
1. CHECK COOLING FAN OPERATION WITH LOW TEM-
PERATURE (Below 83°C (181°F))
(a) Turn the ignition switch ON.
(b) Check that the cooling fan stops.
If not, check the cooling fan relay and ECT switch, and check
for a separated connector or severed wire between the cooling
fan relay and ECT switch.
(c) Disconnect the ECT switch connector.
(d) Check that the cooling fan rotates.
If not, check the engine main relay, cooling fan relay, cooling
fan, fuses, and check for short circuit between the cooling fan
relay and ECT switch.
(e) Reconnect the ECT switch connector.
2. CHECK COOLING FAN OPERATION WITH HIGH TEM-
PERATURE (Above 94°C (201°F))
(a) Start the engine, and raise coolant temperature to above
94°C (201°F).
(b) Check that the cooling fan rotates.
If not, replace the ECT switch.
3. INSPECT NO.1 COOLING FAN
(a) Disconnect the cooling fan connector.
(b) Connect battery and ammeter.
(c) Check that the cooling fan rotates smoothly, and check
the reading on the ammeter.
Standard amperage:
M/T5.7 - 7.7 A
A/T8.6 - 11.6 A
(d) Reconnect the cooling fan connector.
4. INSPECT NO.2 COOLING FAN
(a) Disconnect the cooling fan connector.
(b) Connect battery and ammeter.
(c) Check that the cooling fan rotates smoothly, and check
the reading on the ammeter.
Standard amperage: 6.4 - 7.4 A
(d) Reconnect the cooling fan connector.
Page 633 of 1202
IG08E-06
CHECK POWER SUPPLY TO IGNITION COIL
AND IGNITER
SPARK TEST
Replace the camshaft position sensor.
CHECK RESISTANCE OF HIGH-TENSION
CORD (See step 2)
Maximum resistance: 25 kW per cord
CHECK RESISTANCE OF IGNITION COIL
(See step 4) 1. Turn ignition switch to ON.
2. Check that there is battery voltage at
ignition coil positive (+) terminal.
CHECK CONNECTION OF IGNITION COIL IGNITER
Resistance: Cold Hot
Secondary
9.3 - 16.0 kW
11.7 - 18.8 kW
CHECK RESISTANCE OF CAMSHAFT POSITION SENSOR
(See step 5)
Resistance:Cold Hot
985 - 1,600 W1,265 - 1,890 W
CHECK IGT SIGNAL FROM ECM
(See page
DI-84)
CHECK RESISTANCE OF CRANKSHAFT POSITION SENSOR
(See step 6)
Resistance:Cold
Hot
TRY ANOTHER IGNITERReplace the crankshaft position sensor. Replace the ignition coil. Connect securely.
Replace the cord(s).
Check wiring between ignition switch
to ignition coil and igniter.
Check wiring between ECM, distributor
and igniter, and then try another ECM.
NO
OK OK
OK
OK
OK
OKBAD
BAD
BAD
BAD
BAD
BAD
BAD
Primary
0.67 - 1.05 kW0.85 - 1.23 kW
985 - 1,600 W1,265 - 1,890 W
- IGNITIONIGNITION SYSTEM
IG-1
632 Author: Date:
1996 TERCEL (RM440U)
IGNITION SYSTEM
ON-VEHICLE INSPECTION
NOTICE:
ºColdº and ºHotº in following sentences express the tem-
perature of the coils themselves. ºColdº is from -10°C
(14°F) to 50°C (122°F) and ºHotº is from 50°C (122°F) to
100°C (212°F).
1. INSPECT SPARK TEST
Check that the spark occurs.
(1) Disconnect the high-tension cord from the spark
plug.
(2) Remove the spark plugs.
(3) Install the spark plugs to the high-tension cord.
(4) Ground the spark plug.
(5) See if spark occurs while engine is being cranked.
NOTICE:
To prevent gasoline from being injected from injectors dur-
ing this test, crank the engine for no more than 5 - 10 se-
conds at time. If the spark done not occur, do the test as fol-
lows:
Page 634 of 1202
P20908
CORRECT
WRONG
S06255
P21178
Ohmmeter
S06256
Push
P04690
CORRECT
WRONG IG-2
- IGNITIONIGNITION SYSTEM
633 Author: Date:
1996 TERCEL (RM440U)
2. INSPECT HIGH-TENSION CORDS
(a) Disconnect the high-tension cords from the spark plugs.
(1) Disconnect the high-tension cords at the rubber
boot. Do not pull on the cords.
NOTICE:
Pulling on or bending the cords may damage the conductor
inside.
(2) Disconnect the high-tension cords from the clamp.
(b) Disconnect the high-tension cords from the ignition coils.
(1) Using a screwdriver, lift up the lock claw and discon-
nect the holder from the ignition coils.
(2) Disconnect the high-tension cord at the grommet.
(3) Do not pull on the cord.
NOTICE:
Pulling on or bending the cords may damage the conductor
inside. Do not wipe any of the oil from the grommet after the
high-tension cord is disconnected.
(c) Reconnect the high-tension cords to the ignition coils.
Maximum resistance: 25 kW per cord
If the resistance is greater than maximum, check the terminals.
If necessary, replace the high-tension cord.
(d) Reinstall the high-tension cords.
(1) Assemble the holder and grommet.
(2) Align the spline of the ignition coil with the spline of
the holder, and push in the cord.
NOTICE:
Check that the holder is correctly installed to the grommet
and distributor cap as shown in the illustration.
(3) Check that the lock claw of the holder is engaged by
lightly pulling the holder.
(4) Connect the high-tension cords to the clamp.
(e) Reconnect high-tension cords to spark plugs.
Page 635 of 1202
S06257
16 mm Plug Wrench
IG0152
P20433
P20584
- IGNITIONIGNITION SYSTEM
IG-3
634 Author: Date:
1996 TERCEL (RM440U)
3. INSPECT SPARK PLUGS
(a) Disconnect high-tension cords from spark plugs.
(b) Using a 16 mm plug wrench, remove the spark plug.
(c) Using a spark plug cleaner or wire brush, clean the spark
plug.
If the electrode has traces of wet carbon, allow it to dry and then
clean with a spark plug cleaner.
Air pressure:
Below 588 kPa (6 kgf/cm
2, 85 psi)
Duration: 20 seconds or less
HINT:
If there are traces of oil, remove it with gasoline before using the
spark plug cleaner.
(d) Visually checkthe spark plug for thread damage and insu-
lator damage.
If abnormal, replace the spark plug.
Recommended spark plug:
DENSOK16TR11
NGKBKR5EKB11
(e) Inspect the electrode gap.
Correct electrode gap: 1.1 mm (0.043 in.)
(f) Using a 16 mm plug wrench, remove the spark plug.
Torque: 18 N´m (180 kgf´cm, 13 ft´lbf)
(g) Reconnect the high-tension cords from the ignition coils.
Page 636 of 1202
S06258
Ohmmeter
P21135
Ohmmeter
S06148
Ohmmeter IG-4
- IGNITIONIGNITION SYSTEM
635 Author: Date:
1996 TERCEL (RM440U)
4. INSPCT IGNITION COILS WITH IGNITER
(a) Disconnect the high-tension cords from the ignition coil.
(b) Disconnect ignition coils connector.
(c) Inspect the primary coil resistance.
Using an ohmmeter, measure the resistance between the
positive (+) and negative (-) terminals.
Primary coil resistance :
Cold0.67 - 1.05 W
Hot0.85 - 1.23 W
If the resistance is not as specified, replace the ignition coil.
(d) Remove ignition coils.
(e) Inspect the secondary coil resistance.
Using an ohmmeter, measure the resistance between the
positive (+) and high-tension terminal.
Secondary coil resistance :
Cold9.3 - 16.0 kW
Hot11.7 - 18.8 kW
If the resistance is not as specified, replace the ignition coil.
(f) Reinstall ignition coils
(g) Reconnect ignition coil connectors.
(h) Reconnect high-tension cords from ignition coils.
5. INSPECT CAMSHAFT POSITION SENSOR
(a) Disconnect camshaft position sensor connector.
(b) Inspect camshaft position sensor resistance.
Using an ohmmeter, measure the resistance between ter-
minals.
Resistance:
Cold985 - 1,600 W
Hot1,265 - 1,890 W