TOYOTA CAMRY V20 1986 Service Information

2. (A540H)
INSPECT VOLTAGE OF ECT ECU CONNECTOR
(a) Turn on the ignition switch.
(b) Measure the voltage at each terminal.
Throttle valve fully closed to fully open
Throttle valve fully closed to fully openThrottle valve fully closedMeasuring conditionMeasuring condition
Throttle valve openExcept N rangeExcept R range
Except 2 range
Except L range
Voltage (V)Voltage IV1
R range Terminal
Terminal2 range N range
L range
± AUTOMATIC TRANSAXLETroubleshooting (Electronic Control System) (A540E and
A540H)AT±217

3. (A540E)
INSPECT SOLENOID VALVES
(a) Disconnect the connector from Engine and ECT ECU
(b) Measure the resistance between S1, S2, SL and
body ground.
Resistance: 11 ± 15


(e) Apply battery voltage to each terminal.
Check that an operation noise can be heard from
the solenoid.
Center differential control switch AUTO position
Center differential control switch AUTO position Center differential control switch turned OFF
Center differential control switch turned OFF Coolant temp. below 122°F950°0 Throttle valve fully closed to fully open
Coolant temp. above 122°F (50°C0 O/D main switch turned OFF O/D main switch turned ON
Brake pedal is depressed
Brake pedal is releasedMeasuring condition
Except 2 range
Except N range Except P range
Except L range
NORM patternVoltage (V)
PWR pattern Terminal
N range2 range P range
L range
± AUTOMATIC TRANSAXLETroubleshooting (Electronic Control System) (A540E and
A540H)AT±218

5. (A540H)
INSPECT CENTER DIFFERENTIAL CONTROL
SOLENOID VALVES
(a) Disconnect the connector from ECT ECU.
(b) Measure the resistance between SD1, SD2 and body ground.
Resistance: 11 ± 15


(c) Apply battery voltage to each terminal.
Check that an operation noise can be heard from± the sole-
noid.
6. CHECK SOLENOID SEALS
If there is foreign material in the solenoid valve, there will be no
fluid control even with solenoid operation.
(a) Check No. 1 and No. 2 solenoid valves. (A540E,
A540H)
wApplying 5 kg/cm2 (71 psi, 490 kPa) of compressed air,
check that the solenoid valves open do not leak the air.
wWhen supply battery voltage to the solenoids, check that the
solenoid valves open.
(b) Check the lock±up solenoid valve. (A540E, A540H)
wApplying 5 kglcm2 (71 psi, 490 kPa) of compressed air, check
that the solenoid valve opens.
wWhen supply battery voltage to the solenoid, check that the
solenoid valve does not leak the air. 4. (A540H)
INSPECT SOLENOID VALVES
(a) Disconnect the connector from ECT ECU.
(b) Measure the resistance between S1, S2, SL and body
ground.
Resistance: 11 ± 15


(c) Apply battery voltage to each terminal.
Check that an operation noise can be heard from the
solenoid.
(c) Check No. 1 and No. 2 center differential control
solenoid valves. (A540H)
wApplying 5 kg/cm2 (71 psi, 490 kPa) of com-
pressed air, check that the solenoid valves
open do not leak the air.
wWhen supply battery voltage to the solenoids,
check that the solenoid valves open.
± AUTOMATIC TRANSAXLETroubleshooting (Electronic Control System) (A540E and
A540H)AT±219

(A540E)
INSPECT NO. 2 SPEED SENSOR
(a) Jack up a front wheel on one side.
(b) Connect an ohmmeter between the terminals.
(c) Spin the wheel and check that the meter needle
deflects from 4 to 8W
10. (A540E)
INSPECT NO. 1 SPEED SENSOR IN COMBINATION
METER
(a) Remove the combination meter.
(b) Connect an ohmmeter between terminals A and B.
(c) Revolve the meter shaft and check that the mete
needle repeatedly deflects from 0 W to 8W 7. (A540E, A540H)
INSPECT NEUTRAL START SWITCH
Using an ohmmeter, check the continuity of the termi-
nals for each switch position shown in the table below.
(A540H)
8. (A540E, A540H)
INSPECT THROTTLE POSITION SENSOR
Using an ohmmeter, check the resistance between
each terminal.
Throttle valve
conditionResistance (kW )
Fully closed
Fully closed
Fully open
Terminal
TerminalRange
Open
± AUTOMATIC TRANSAXLETroubleshooting (Electronic Control System) (A540E and
A540H)AT±220

11. (A540H) . . . .
INSPECT VEHICLE SPEED SENSOR AND REAR
WHEEL SPEED SENSOR
(a) Disconnect the connector from ECT ECU.
(b) Measure the resistance between FR± and FR* (ve-
hicle speed sensor, and between RR± and RR* (rear
wheel speed sensor). .
Resistance: 620
60


12. (A540E, A540H)
INSPECT PATTERN SELECTION SWITCH
Inspect that there is continuity between 5 and each terminal.
HINT: As there are diodes inside, be careful of the tester probe
polarity.
14. (A540H)
INSPECT CENTER DIFFERENTIAL CONTROL SWITCH
(a) Disconnect the connector from center differential control
switch.
(b) Inspect that there is continuity between terminals 1
and 4. 13. (A540E, A540H)
INSPECT O/D MAIN SWITCH
Inspect that there is continuity between terminals 1 and 3.
S/W
position . S/W
positionTerminal
TerminalTerminal NORM Pattern
AUTOPWR
OFFOFF
± AUTOMATIC TRANSAXLETroubleshooting (Electronic Control System) (A540E and
A540H)AT±221

INSTALLATION OF THROTTLE CABLE
1. INSTALL CABLE INTO TRANSMISSION CASE
2. INSTALL VALVE BODY
3. IF THROTTLE CABLE IS NEW, STAKE STOPPER OR
PAINT MARK ON INNER CABLE
HINT: New cable do not have a cable stopper staked.
(a) Bend the cable so there is a radius of about 200 mm(7.87 in.).
(b) Pull the inner cable lightly until a slight resistance is felt, and hold
it.
(e) Stake the stopper, 0.8 ± 1.5 mm (0.031 ± 0.059 in.)
from the end of outer cable.
4. CONNECT THROTTLE CABLE TO ENGINE
5. ADJUST THROTTLE CABLE (See page AT±201)
6. INSTALL AND ADJUST NEUTRAL START SWITCH
7. TEST DRIVE VEHICLE
Throttle Cable
REMOVAL OF THROTTLE CABLE
1. DISCONNECT THROTTLE CABLE FROM ENGINE
2. REMOVE NEUTRAL START SWITCH
3. REMOVE VALVE BODY
4. REMOVE THROTTLE CABLE
ON±VEHICLE REPAIR
HINT: The components mentioned below can be replaced on the vehicle without any necessity for
removal of the transaxle. For the respective operating procedures refer to the following pages:
Speedometer driven gear oil
seal
Extension housing oil
seal Side gear
shaft oil sealAT±232 and AT±233 AT±242 to AT±244
Throttle cable
Only A540H Components
Valve bodyInstallation
RemovalRemarks
AT±231AT±231
AT±233AT±232
AT±233AT±232
AT±232
± AUTOMATIC TRANSAXLEOn±Vehicle Repair (A540E and A540H)AT±231

Side Gear Shaft Oil Seal
REPLACEMENT OF SIDE GEAR
SHAFT OIL SEAL
1. REMOVE BOTH DRIVE SHAFTS
(See page FA±30 or FA±43)
2. REMOVE LEFT SIDE GEAR SHAFT OIL SEAL
Using SST, pull out the oil seal.
SST 09308±00010
3. (A540H)
REMOVE RIGHT SIDE GEAR SHAFT OIL SEAL
Using a screwdriver, remove the oil seal.
Speedometer Driven Gear Oil Seal
REPLACEMENT OF SPEEDOMETER
DRIVEN GEAR OIL SEAL
1. REMOVE SPEEDOMETER DRIVEN GEAR OIL SEAL
Using SST, pull out the oil seal.
SST 09921±00010
4. INSTALL LEFT SIDE GEAR SHAFT OIL SEAL
(1) Using SST, drive in a new oil seal.
SST 09608±30022 (09608±05010, 09608±32010)
Oil seal depth: 0 0.5 mm (00.02 in.)
(2) Coat the lip of oil seal with MP grease. 2. INSTALL SPEEDOMETER DRIVEN GEAR OIL SEAL
Using SST, drive in the oil seal.
SST 09201±60011
Drive in depth: 20 mm (0.79 in.)
± AUTOMATIC TRANSAXLEOn±Vehicle Repair (A540E and A540H)AT±232

Extension Housing Oil Seal (A540H)
REPLACEMENT OF EXTENSION HOUSING
OIL SEAL
1. DRAIN TRANSFER OIL
2. REMOVE PROPELLER SHAFT (See page PR±4)
3. REMOVE EXTENSION HOUSING OIL SEAL
Using SST, remove the oil seal.
SST 09308±00010
4. INSTALL EXTENSION HOUSING OIL SEAL
(a) Coat the lip of oil seal with MP grease.
(b) Using SST, drive in a new oil seal.
SST 09325±20010
5. INSTALL PROPELLER SHAFT (See page PR±10)
6. FILL TRANSFER OIL (See page AT±200) 5. (A540H)
INSTALL RIGHT SIDE GEAR SHAFT OIL SEAL
(1) Coat the lip of oil seal with MP grease.
(2) Using SST, drive in a new oil seal.
SST 09608±30022 (09608±05010, 09608±32010)
Oil seal depth: 0 0.3 mm (0.012 in.)
6. INSTALL BOTH DRIVE SHAFTS
(See page FA±39 or FA±50) .
7. CHECK TRANSAXLE FLUID LEVEL (See page AT±199)
± AUTOMATIC TRANSAXLEOn±Vehicle Repair (A540E and A540H)AT±233

REMOVAL AND INSTALLATION OF TRANSAXLE
(A540E and A540H)
REMOVAL AND INSTALLATION OF ENGINE
(3S±FE: See pages EM±106 and EM±t30, 2VZ±FE: EM±138 and EM±165)
REMOVAL AND INSTALLATION OF TRANSAXLE
(Remove and install transaxle as shown)
± AUTOMATIC TRANSAXLERemoval and Installation of Transaxle (A540E and
A540H)AT±234

3. INSTALL TORQUE CONVERTER MOUNTING BOLTS
(a) Clean the threads of the bolts with the gasoline.
(b) Coat the threads of the bolts with sealer.
Sealer: Part No. 08833±00070, THREE BOND 1324
or equivalent.
(c) Tighten the bolts evenly.
Torque: 280 kg±cm (20 ft±Ib, 27 N±m)
2. CHECK TORQUE CONVERTER INSTALLATION
Using a scale and a straight edge, measure from the
installed surface to the front surface of the transaxle
housing.
Correct distance: 23.0 mm I0.906 in.) or more
4. (A540H, Transfer)
INSPECT MODE SELECT LEVER POSITION
After finishing inspection or repair the transaxle, be sure
the mode select lever position to FREE mode and at-
tach the lock bolt.
(MAIN POINT OF INSTALLATION)
1. INSTALL TORQUE CONVERTER IN TRANSAXLE
± AUTOMATIC TRANSAXLERemoval and Installation of Transaxle (A540E and
A540H)AT±235