sensor TOYOTA TERCEL 1996 Service Repair Manual

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.

SF0WM-03
P20326
Knock Sensor
Connector Knock Sensor
- MFIKNOCK SENSOR
MF-49
573 Author
: Date
:
1996 TERCEL (RM440U)
KNOCK SENSOR
COMPONENTS

SF0WN-01
P20327
SST
P01630
Ohmmeter MF-50
- MFIKNOCK SENSOR
1996 TERCEL (RM440U)
INSPECTION
1. REMOVE KNOCK SENSOR
(a) Disconnect the knock sensor connector.
(b) Using SST, remove the knock sensor.
SST 09816-30010
2. INSPECT KNOCK SENSOR
Using an ohmmeter, check that there is no continuity between
the terminal and body.
If there is continuity, replace the sensor.
3. REINSTALL KNOCK SENSOR
Torque: 45 N´m (450 kgf´cm, 33 ft´lbf)

SF0WK-03
- MFIHEATED OXYGEN SENSOR
MF-51
575 Author
: Date
:
1996 TERCEL (RM440U)
HEATED OXYGEN SENSOR
COMPONENTS

MF-52
- MFIHEATED OXYGEN SENSOR
576 Author
: Date
:
1996 TERCEL (RM440U)

SF1PZ-01
P20873
+B
HT Ohmmeter
- MFIHEATED OXYGEN SENSOR
MF-53
1996 TERCEL (RM440U)
INSPECTION
1. INSPECT HEATER RESISTANCE OF MAIN HEATED
OXYGEN SENSOR (BANK 1 SENSOR 1)
(a) Disconnect the oxygen sensor connectors.
(b) Using an ohmmeter, measure the resistance between the
terminals +B and HT.
Resistance: 11 - 16 W at 20°C (68°F)
If the resistance is not as specified, replace the sensor.
Torque: 44 N´m (440 kgf´cm, 32 ft´lbf)
(c) Reconnect the oxygen sensor connectors.
2. INSPECT HEATER RESISTANCE OF SUB HEATED
OXYGEN SENSOR (BANK 1 SENSOR 2)
(a) Remove the passenger's seat.
(b) Take out the console box side of the floor carpet.
(c) Disconnect the oxygen sensor connector.
(d) Using an ohmmeter, measure the resistance between the
terminals +B and HT.
Resistance: 11 - 16 W at 20°C (68°F)
If the resistance is not as specified, replace the sensor.
Torque: 44 N´m (440 kgf´cm, 32 ft´lbf)
(e) Reconnect the oxygen sensor connectors.
(f) Reinstall the floor carpet.
(g) Reinstall the passenger's seat.

CO0HT-04
P21028
(b)
(c)
(a)
P21132
(2)(1)(b)
(a)
P21130
P21029
CO-4
- COOLINGWATER PUMP
1996 TERCEL (RM440U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. REMOVE GENERATOR
3. REMOVE INTAKE MANIFOLD STAY
(a) Disconnect the engine wire clamps from the intake man-
ifold stay.
(b) Remove the bolt, nut and intake manifold stay.
4. REMOVE WATER INLET PIPE
(a) Disconnect the water inlet hose.
(b) Disconnect the heater inlet hose.
(c) Disconnect the water bypass hose.
(d) Remove the bolt, water inlet pipe and O-ring.
5. REMOVE OIL DIPSTICK GUIDE AND GENERATOR
ADJUSTING BAR
(a) Disconnect the engine wire clamp.
(b) Disconnect the connector clamp for crankshaft position
sensor.
(c) Remove the oil dipstick.
(d) Remove the mounting bolt of the dipstick guide clamp and
generator adjusting bar.
(e) Pull out the dipstick guide. Plug the guide installation hole
of the oil pump.
(f) Remove the O-ring from the dipstick guide.
6. REMOVE WATER PUMP
Remove the bolt, 2 nuts and water pump.

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:

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

P21173
Ohmmeter
- IGNITIONIGNITION SYSTEM
IG-5
636 Author
: Date
:
1996 TERCEL (RM440U)
If the resistance is not as specified, replace the camshaft posi-
tion sensor.
(c) Reconnect camshaft position sensor connector.
6. INSPECT CRANKSHAFT POSITION SENSOR
(a) Disconnect crankshaft position sensor connector.
(b) Inspect crankshaft position sensor resistance.
Using an ohmmeter, measure the resistance between ter-
minals.
Resistance:
Cold985 - 1,600 W
Hot1,265 - 1,890 W
If the resistance is not as specified, replace the crankshaft posi-
tion sensor.
(c) Connect crankshaft position sensor connector.