cruise control TOYOTA CAMRY V20 1986 Service Information

Clutch Switch
INSPECTION OF SWITCH
INSPECT SWITCH CONTINUITY
(a) Check that there is continuity between terminals with
the switch free.
(Clutch pedal depressed)
(b) Check that there is no continuity between terminals
with the switch pin pushed.
(Clutch pedal released)
If continuity is not as specified, replace the switch.
Parking Brake Switch
INSPECTION OF SWITCH
INSPECT SWITCH CONTINUITY
(a) Check that there is continuity between terminal and
switch set .nu^ with the switch free.
(Parking brake lever pulled up)
(b) Check that there is no cintinuity between terminal
and switch set nut with the switch pin pushed.
(Parking brake lever released)
If continuity is not as specified, replace the switch.
Neutral Start Switch
INSPECTION OF SWITCH
INSPECT SWITCH CONTINUITY
Check that there is continuity between terminals 2 and 3
with switch position ºPº and ºNº ranges.
If continuity is not as specified, replace the switch.
Speed Sensor
INSPECTION OF SENSOR
INSPECT SENSOR CONTINUITY
Check that there is continuity between terminals A and6
four times per each revolution of the shaft.
If continuity is not as specified, replace the sensor.
± BODY ELECTRICAL SYSTEMCruise Control SystemBE±90

Actuator
INSPECTION OF ACTUATOR
1. INSPECT CONTROL CABLE FREEPLAY
Measure the cable stroke to where the throttle valve be-
gins to open.
Standard: Approx. within 10 mm (0.39 in.) with a slight
amount of freeplay.
If freeplay is not as specified, adjust the control cable
freeplay.
2. INSPECT ACTUATOR RESISTANCE
Measure the resistance value between terminals as fol-
lows.
Resistance: 2 ± 3 approx. 30


1 ± 3 approx. 68

If the resistance value is not as specified, replace the ac-
tuator.
3. INSPECT ACTUATOR OPERATION
(a) Connect the positive (+) lead from battery to termi-
nals 1, 2 and the negative H lead to terminal 3.
(b) Slowly apply vacuum from 0 300 mmHg (0 ±11.81
in.Hg, 0 ± 40.0 kPa), and check that the control cable
can be pulled smoothly.
(c) Disconnect terminal 1 or 2, check that the control
cable returns to its original position and the vacuum
returns to 0 mmHg (0 in.Hg, 0 kPa).
If operation is not as specified, replace the actuator.
± BODY ELECTRICAL SYSTEMCruise Control SystemBE±91

Vacuum Switch
INSPECTION OF SWITCH
INSPECT SWITCH OPERATION (w/ A.B.S.)
(a) Check that there is no continuity b¿¿ween terminal
and body with a vacuum of 170
+10 mmHg (6.69 t
0.39 in.Hg, 22.7
+1.3 kPa) or above.
(b) Check that there is continuity between terminal and
body with no vacuum.
If operation is not as specified, replace the switch.
INSPECT SWITCH OPER¿¿ION (w/o A.B.S.)
(a) Check that there is no continuity between terminals
with a vacuum of 170
+10 mmHg (6.69 +0.39 in.Hg,
22.7
+1.3 kPa) or above.
(b) Check that there is continuity between terminals with
no vacuum.
If operation is not as specified, replace the switch.
Vacuum Pump
INSPECTION OF PUMP
INSPECT VACUUM PUMP OPERATION
(a) Connect a vacuum gauge to the ACT side of the
pump.
(b) Connect the positive (+) lead from the battery to
terminal 1 and the negative (±) lead to terminal 2.
(e) Check that there is the vacuum of 200 mmHg (7.87
in±Hg, 26.7 kPa) or above.
If operation is not as specified, replace the pump.
± BODY ELECTRICAL SYSTEMCruise Control SystemBE±92

CHECK AND ADJUSTMENT OF
CLUTCH PEDAL
1. CHECK THAT PEDAL HEIGHT IS CORRECT
Pedal height from asphalt shaft 181 ± 191 mm
(7:13 ± 7.52 in.)
2. IF NECESSARY, ADJUST PEDAL HEIGHT
(a) Remove the instrument lower finish panel and discon-
nect the air duct.
(b) Loosen the lock nut and turn the stopper bolt (w/o
Cruise control system) or clutch switch (w/ Cruise
control system) until the height is correct. Tighten the
lock nut.
HINT: Before rotating the clutch switch for pedal height
adjustment, disconnect the clutch switch connector.
3. CHECK THAT PEDAL FREEPLAY AND PUSH ROD
PLAY ARE CORRECT
(Pedal Freeplay)
Push in the pedal until the beginning of clutch resistance
is felt.
Pedal freeplay: 5 ± 15 mm (0.20 ± 0.59 in.)
Push rod play at pedal top: 1.0 ± 5.0 mm
(0.039 ± 0.197 in.)
4. IF NECESSARY, ADJUST PEDAL FREEPLAY AND
PUSH ROD PLAY
(a) Loosen the lock nut and turn the push rod until the free-
play and push rod play are correct.
(b) Tighten the lock nut.
(e) After adjusting the pedal freeplay, check the pedal
height.
(d) Connect the air duct and install the lower finish panel.
5. INSPECT CLUTCH RELEASE POINT
(a) Pull the parking brake lever and install wheel stopper.
(b) Start the engine and idle the engine.
(e) Without depressing the clutch pedal, slowly shift the
shift lever into reverse position until the gears contact.
(d) Gradually depress the clutch pedal and measure the
stroke distance from the point the gear noise stops
(release point) up to the full stroke end position.
Standard distance: 25 mm (0.98 in.) or more
(From pedal stroke end position to release point)
If the distance is not as specified, perform the following
operation.
wInspect pedal height.
wInspect push rod play and pedal free play.
wBleed the clutch line.
wInspect the clutch cover and disc.
± CLUTCHCheck and Adjustment of Clutch PedalCL±3

EFI SYSTEM CHECK PROCEDURE
(2VZ±FE)
PREPARATION
(a) Disconnect the connectors from the ECU.
(b) Remove the locks as shown in the illustration so that the
tester probe(s) can easily come in.
NOTICE: Pay attention to sections ºAº and ºBº in the il-
lustration which can be easily broken.
(e) Reconnect the connectors to the ECU.
HINT:
wPerform all voltage measurements with the connectors con-
nected.
wVerify that the battery voltage is 11 V or more when the igni-
tion switch is in ºONº position.
Using a voltmeter with high impedance (10 k

/V mini±
mum), measure the voltage at each terminal of the wiring
connectors.
AIR FLOW METER
THROTTLE POSITION SENSOR
Terminals of ECU
No. 1 SPEED SENSOR (Meter side)
No. 2 SPEED SENSOR (AlT side)
THROTTLE POSITION SENSOR FUEL PRESSURE CONTROL VSV
THROTTLE POSITION SENSORCRUISE CONTROL COMPUTER
* 1 w/ ECT
*2 CALIF. only KNOCK CONTROL SENSOR PATTERN SELECT SWITCH
OXYGEN SENSOR HEATER
NEUTRAL START SWITCHEGR GAS TEMP. SENSOR INJECTOR (No. 2 and 3)INJECTOR (No. 4 and 5)
SIFT POSITION SWITCH.
ISC MOTOR NO. 3 COILINJECTOR (No. 1 and 6i
ISC MOTOR NO. 1 COIL
ISC MOTOR NO. 4 COILSIFT POSITION SWITCH ISC MOTOR NO. 2 COILWATER TEMP. SENSORSUB±OXYGEN SENSOR
SIFT POSITION SWITCH COLD START INJECTOR
EFI MAIN RELAY (COIL)
SIFT POSITION SWITCHSUB±OXYGEN SENSOR CHECK CONNECTOR
COMPUTER GROUND
CHECK CONNECTORCHECK CONNECTOR CHECK CONNECTOR
AIR TEMP. SENSORA/C COMPRESSOR
SENSOR GROUNDTerminal Name
OXYGEN SENSOROD MAIN SWITCH
STARTER SWITCHIGNITION SWITCH Terminal Name
AIR FLOW METERTerminal Name
POWER GROUND
POWER GROUND
WARNING LIGHT
EFI MAIN RELAY BRAKE SWITCH
EFt MAIN RELAY ECT SOLENOID
ECT SOLENOIDA/C AMPLIFIER
ECT SOLENOIDDISTRIBUTOR
DISTRIBUTOR DISTRIBUTOR
DISTRIBUTOR
TEMS ECU
TEMS ECU
TEMS ECU Symbol Symbol Symbol
BATTERY IGNITER
IGNITER
*2NSW
*1OD2
No. 30 No. 10
No. 20
*1PWR
*2OX2
M±REL
*1OD 1
*2CHK
*2THGIG SW
*1SP2
BATT
*1SL
*1 DG
1S1THW
*1S2
*1BK
ISC4 1SC2 ISC1
ISC3VTAOX1
ACTS TJSP1
THA
STAKNK EO2 E01
IGT
*1R A/C
EPU
1
L
IGF
± EFI SYSTEMTroubleshooting with Volt OhmmeterFI±50

10. DISCONNECT HOSES AND PARTS
(a) Brake booster vacuum hose
(b) PS vacuum and air hoses
(c) Cruise control vacuum hose
(d) Ground strap connector
(e) Wire harness clamp
Remove the nut, and disconnect the wire harness clamp.
(f) Fuel pressure control VSV hose.
11. DISCONNECT WIRE HARNESS CLAMP
Remove the nut and disconnect the wire harness.
12. DISCONNECT EGR PIPE
13. REMOVE NO.1 ENGINE HANGER AND AIR INTAKE
CHAMBER STAY
(a) Remove the two bolts and No.1 engine hanger.
(b) Remove the bolt, and disconnect the air intake chamber
stay from air intake chamber.
14. REMOVE AIR INTAKE CHAMBER
Remove the two bolts, nuts, air intake chamber and gasket.
15. DISCONNECT CONNECTORS
(a) Cold start injector connector
(b) Water temperature sensor connector
(c) Six injector connectors
16. DISCONNECT WIRE HARNESS CLAMPS FROM LH
DELIVERY PIPE
Disconnect the three wire harness clamp.
17. DISCONNECT FUEL INLET AND TWO RETURN
HOSES
(a) Disconnect the fuel return hoses from the fuel pressure reg-
ulator and No.1 fuel pipe.
(b) Disconnect the fuel inlet hose from the fuel filter.
18. REMOVE NO.2 FUEL PIPE
Remove the two union bolts, four gaskets and No.2 fuel
pipe.
± EFI SYSTEMFuel System (Injectors (2VZ±FE))FI±95

7. CONNECT EGR PIPE
Torque: 800 kg±cm (58 ft±1b, 78 N±m)
8. CONNECT WIRE HARNESS CLAMP
Connect the wire harness clamp with the nut.
9. INSTALL NO.1 ENGINE HANGER AND AIR INTAKE
CHAMBER STAY
(a) Connect the air intake chamber stay with the two bolts.
Torque: 380 kg±cm (27 ft±Ib,37 N±m)
(b) Install the No.1 engine hanger with the two bolts.
Torque: 380 kg±cm (27 it±Ib,37 N±m)
10. CONNECT HOSES AND PARTS
(a) Wire harness clamp
Connect the wire harness clamp with the nut.
(b) Brake booster vacuum hose
(c) PS vacuum and air hoses
(d) Cruise control vacuum hose
(e) Ground strap connector
(f) Fuel pressure control VSV hose2. INSTALL NO.2 FUEL PIPE
Install the No.2 fuel pipe with four new gaskets and the union
bolts as shown in the illustration.
Torque: 330 kg±cm (24 ft±Ib, 32 N±m)
3. CONNECT FUEL INLET AND RETURN HOSES
(a) Connect the inlet hose to the fuel filter with two new gaskets
and union bolt.
(b) Connect the two return hoses to the pressure regulator and
No.1 fuel pipe.
4. CONNECT THREE WIRE HARNESS CLAMPS TO LH
DELIVERY PIPE
5. CONNECT CONNECTORS
(a) Six injector connectors
(b) Cold start injector connector
(e) Water temperature connector
6. INSTALL AIR INTAKE CHAMBER
Install a new gasket and the air intake chamber with the two
bolts and nuts.
Torque: 440 kg±cm (32 ft±lb, 43 N±m)
± EFI SYSTEMFuel System (Injectors (2VZ±FE))FI±99

REMOVAL OF TIMING BELT
1. DISCONNECT CABLE FROM NEGATIVE TERMINAL
OF BATTERY
2. REMOVE RN FRONT WHEEL
3. REMOVE ENGINE RH UNDER COVER
4. REMOVE CRUISE CONTROL ACTUATOR
(See step 9 on page EM±108)
5. REMOVE DRIVE BELTS
6. REMOVE ALTERNATOR (See page CH±6)
7. REMOVE ALTERNATOR BRACKET
8. REMOVE RH MOUNTING STAY
(2WD)
Remove the three bolts and mounting stay.
TIMING BELT (3S±FE)
COMPONENTS
± ENGINE MECHANICALTiming Belt (3S±FE)EM±23

(4WD)
Install the mounting stay and ground strap with the bolt and
nut. Torque the bolt and nut.
Torque: 740 kg±cm (54 ft±Ib, 73 N±m)
18. INSTALL ALTERNATOR BRACKET
Torque: 425 kg±cm (31 ft±Ib, 42 N±m)
19. INSTALL ALTERNATOR (See page CH±14)
20. INSTALL DRIVE BELTS
Adjust the drive belts. (See page CH±3)
Drive belt tension:
Alternator w/ A/C . New belt 175 + 5 lb
Used belt 130 + 10 Ib
w/o, A/C New belt 125 + 25 Ib
Used belt 9 5 + 20 Ib
PS pump New belt 125 + 10 lb
Used belt 80 + 20 Ib
21. INSTALL CRUISE CONTROL ACTUATOR
(See step 26 on page EM±137)
22. INSTALL ENGINE RH UNDER COVER
23. INSTALL RH FRONT WHEEL
24. CONNECT CABLE TO NEGATIVE TERMINAL OF
BATTERY (c) (4WD)
Install the mounting insulator with the through bolt and two
nuts. Torque the through bolt and nuts.
Torque:
Through bolt 890 kg±cm (64 ft±Ib, 87 N±m)
Nut 530 kg±cm (38 ft±Ib, 52 N±m)
16. LOWER ENGINE
17. INSTALL ENGINE RH MOUNTING STAY
(2WD)
Install the mounting stay with the three bolts. Torque the
bolts.
Torque: 740 kg±cm (54 ft±lb, 73 N±m)
± ENGINE MECHANICALTiming Belt (3S±FE)EM±33

REMOVAL OF TIMING BELT
1. DISCONNECT CABLE FROM NEGATIVE TERMINAL
OF BATTERY
2. (w/ CRUISE CONTROL SYSTEM)
REMOVE CRUISE CONTROL ACTUATOR AND
VACUUM PUMP
(See step 14 on page EM±140 or 141)
3. REMOVE PS OIL RESERVOIR TANK WITHOUT
DISCONNECTING HOSES
(See step 35 on page EM±144)
4. REMOVE RH FRONT WHEEL
5. REMOVE ALTERNATOR DRIVE BELT
6. REMOVE RH FENDER APRON SEAL
7. REMOVE PS DRIVE BELT
TIMING BELT (2VZ±FE)
COMPONENTS
± ENGINE MECHANICALTiming Belt (2VZ±FE)EM±34