Page 481 of 1354
Q08869
Junction Connector Fuse Block
FL Block Junction Connector
O/D Main Switch*
O/D Main switch
Contacts go open with switch pushed in.
Contacts go closed with switch pushed once again. *:
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A241E)
DI−161
1996 RAV4 (RM447U)
O/D Main Switch & O/D OFF Indicator Light Circuit
CIRCUIT DESCRIPTION
The O/D main switch contacts go open when the switch is pushed in and go closed when it is pushed once
again. In O/D main switch OFF position, the O/D OFF indicator lights up, and the ECM prohibits shifting to
O/D.
WIRING DIAGRAM
DI40N−02
Page 486 of 1354
Q05352
Cruise Control ECU
C16
ECM
4 − 6 V
9
ODOD1
Y−B20
E6
D02210
ON
OD1
DI−166
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A241E)
1996 RAV4 (RM447U)
O/D Cancel Signal Circuit
CIRCUIT DESCRIPTION
While driving uphill with cruise control activated, in order to minimize gear shifting and provide smooth cruis-
ing, O/D may be prohibited temporarily under some conditions.
The cruise control ECU sends O/D cur signals to the ECM as necessary and the ECM cancels O/D shifting
until these signals are discontinued.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check voltage between terminal OD1 of ECM and body ground.
PREPARATION:
Turn the ignition switch ON.
CHECK:
Measure the voltage between terminal OD1 of the ECM and
body ground.
OK:
Voltage: 4 − 6 V
OK Proceed next circuit inspection shown on prob-
lem symptoms table (See page DI−141).
NG
DI40O−01
Page 488 of 1354
Q08867
Junction Connector
Fuse Block
FL Block
DI−168
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A241E)
1996 RAV4 (RM447U)
Pattern Select Switch Circuit
CIRCUIT DESCRIPTION
The ECM memory contains the shift programs for the NORMAL and POWER patterns, 2 position, and L posi-
tion and the lock−up patterns. Following the programs corresponding to the signals from the pattern select
switch, the park/neutral position switch and other various sensors, the ECM switches the solenoid valves
ON and OFF, and control the transmission gear change and the lock−up clutch operation.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check operation of PWR indicator light.
CHECK:
Check if the PWR indicator light normally when the pattern select switch is set to NORM and PWR position.
OK:
Pattern select switchPWR indicator light
PWRLight up
NORMGoes off
NG Check and repair PWR indicator light (See page
BE−2).
OK
DI40P−02
Page 519 of 1354
Q06970
Transaxle
Shift Solenoid
Valve No. 1
Shift Solenoid
Valve No. 2
To Cruse Control ECUS2S1ECM
P−B 3
E1 E4E4
P 6152
E1B+
B+
Q08088
S2S1
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A540H)
DI−199
1996 RAV4 (RM447U)
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Measure resistance between terminal S1 or S2 of ECM and body ground.
PREPARATION:
Disconnect the connector from the ECM.
CHECK:
Measure the resistance between terminal S1 or S2 of the ECM
and body ground.
OK:
Resistance: 11 − 15 Ω
OK Check and replace ECM.
NG
Page 523 of 1354
D02260
Shift Solenoid
Valve SL Transaxle
E15
Y−B
E41
SLB+ ECM
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A540H)
DI−203
1996 RAV4 (RM447U)
DTC P0773 Shift Solenoid E Electrical Malfunction
(Shift Solenoid Valve SL)
CIRCUIT DESCRIPTION
The shift solenoid valve SL is turned ON and OFF by signals from the ECM to control the hydraulic pressure
acting on the lock−up relay valve, which then controls operation of the lock−up clutch.
Fail Safe Function:
If the ECM detects a malfunction, it turns the shift solenoid valve SL OFF.
DTC No.DTC Detecting ConditionTrouble Area
P0773
Either (a) or (b) is detected for 1 time (2 trip detection logic)
(a) Solenoid resistance is 8 Ω or less short circuit when sole-
noid is energized.
(b) Solenoid resistance is 100 kΩ or more open circuit when
solenoid is not energized
Open or short in shift solenoid valve SL circuit
Shift solenoid valve SL
ECM
WIRING DIAGRAM
DI412−01
Page 527 of 1354
D02265
Front Speed Sensor V3 2
V3
1Y−R
W−R
E47 E48ECM
4 − 6 V
FR
−
FR+
D02266
FR+FR−
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A540H)
DI−207
1996 RAV4 (RM447U)
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check vehicle speed value or resistance between terminals FR+ and FR− of ECM.
When using OBD II scan tool or TOYOTA hand−held tester:
PREPARATION:
(a) Remove the DLC3 cover.
(b) Connect an OBDII scan tool or TOYOTA hand−held tester
to the DLC3.
(c) Turn the ignition switch ON and OBD II scan tool or TOY-
OTA hand−held tester main switch ON.
CHECK:
Drive the vehicle and read vehicle speed value.
OK:
Vehicle speed matches tester speed value.
When not using OBD II scan tool or TOYOTA hand−held tes-
ter:
CHECK:
Check the resistance between terminals FR+ and FR− of the
ECM.
OK:
Resistance: 560 − 680 Ω
OK Check and replace ECM.
NG
Page 529 of 1354
D02268
Rear Speed Sensor
Transfer
Drive
Gear
D02265
Rear Speed Sensor V4 2
1
V4L−Y
R−L
E5E5 14
13
RR
−
RR+
4 − 6 V ECM
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A540H)
DI−209
1996 RAV4 (RM447U)
DTC P1715 Rear Wheel Sensor Circuit Malfunction
(Rear Speed Sensor)
CIRCUIT DESCRIPTION
The rear speed sensor detects the rear wheel speed based on
revolution of the transfer drive gear.
Its construction is the same as that of the front speed sensor
(See page DI−206).
The center differential clutch is controlled by the ECM based on
the signals from the front speed sensor and rear speed sensor
signals.
DTC No.DTC Detecting ConditionTrouble Area
P1715
All conditions below are detected 10 sec. or more
(2 trip detection logic)
(a) No signal rear speed sensor is input to ECM
(b) Vehicle speed: 30 km/h (19 mph) or more
(c) Park / neutral position switch:
OFF (Other than P or N position)
Open or short in rear speed sensor circuit
Rear speed sensor
ECM
WIRING DIAGRAM
DI415−01
Page 532 of 1354
Q08871
Shift Solenoid
Valve STTransaxle
E1IG2
E6 13
LG 12 1
LG STB+ ECM DI−212
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A540H)
1996 RAV4 (RM447U)
DTC P1760 Linear Solenoid for Line Pressure Control
Circuit Malfunction (Shift Solenoid Valve ST)
CIRCUIT DESCRIPTION
When the difference in speed between the front wheels and rear wheels is large, and this takes place during
an extreme low−speed operation in the D, 2, or L position, shift solenoid valve ST is turned ON by the signal
from the ECM.
DTC No.DTC Detecting ConditionTrouble Area
P1760
Either (a) or (b) are detected for 1 time (2 trip detection logic)
(a) Solenoid resistance is 8 Ω or less short circuit when sole-
noid is energized
(b) Solenoid resistance is 100 kΩ or more open circuit when
solenoid is not energized
Open or short in shift solenoid valve ST circuit
Shift solenoid valve ST
ECM
WIRING DIAGRAM
DI416−01