1996 TOYOTA RAV4 ECU

P25426
Throttle Position Sensor
4
E5
3
2L
1
BR L−R Y5V
VC
VTA
E2
E1 From Cruise
Control ECU1
11
9 E5
E5ECM
FI7052
− DIAGNOSTICSENGINE
DI−35
1996 RAV4 (RM447U)
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
If DTC P0105” (Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction), ”P0110” (Intake Air
Temp. Circuit Malfunction), ”P0115” (Engine Coolant Temp. Circuit Malfunction), ”P0120” (Throttle / Pedal
Position Sensor / Switch ”A” Circuit Malfunction) are output simultaneously, E2 (sensor ground) may be
open.
1 Connect OBDII scan tool or TOYOTA hand−held tester and read the throttle valve
opening percentage.
PREPARATION:
(a) Connect the OBDII scan tool or TOYOTA hand−held tester to the DLC3.
(b) Turn ignition switch ON and OBDII scan tool or TOYOTA hand−held tester main switch ON.
CHECK:
Read the throttle valve opening percentage.
OK:
Throttle valveThrottle valve opening position
expressed as percentage
Fully openApprox. 70 %
Fully closedApprox. 10 %

S07638
IG1
1H 1DI4I4
E4
E43 20
EA17
IG111
2221
20 8
1412
67
2
W B−WB−RB−R B−W
B−W
B−W
B−W
L−Y 4
53
2
1 Tr2
Igniter To Tachometer Distributor
BatteryFusible Link BlockR/B No.2
B−R IG Switch 4ECM
IGT
IGF5V
Tr1
AM2B
B−Y
Ignition Coil
J/B No.1
MAIN DI−100
− DIAGNOSTICSENGINE
1996 RAV4 (RM447U)
DTC P1300 Igniter Circuit Malfunction
CIRCUIT DESCRIPTION
This ECM determines the ignition timing, turns on Tr1 at a predetermined angle (°CA) before the desired
ignition timing and outputs an ignition signal (IGT) ”1” to the igniter.
Since the width of the IGT signal is constant, the dwell angle control circuit in the igniter determines the time
the control circuit starts primary current flow to the ignition coil based on the engine rpm and ignition timing
one revolution ago, that is, the time the Tr
2 turns on.
When it reaches the ignition timing, the ECM turns Tr
1 off and outputs the IGT signal ”O”.
This turns Tr
2 off, interrupting the primary current flow and generating a high voltage in the secondary coil
which causes the spark plug to spark. Also, by the counter electromotive force generated when the primary
current is interrupted, the igniter sends an ignition confirmation signal (IGF) to the ECM.
The ECM stops fuel injection as a fail safe function when the IGF signal is not input to the ECM.
DTC No.DTC Detecting ConditionTrouble Area
P1300No IGF signal to ECM for 8 consecutive IGT signals during
engine running.Open or short in IGF or IGT circuit from igniter to ECM
Igniter
ECM
WIRING DIAGRAM
DI401−01

OR0028
Q06076
AT3417
OK if hot
Add if hot
AT4252
0 − 1 mm
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A241E)
DI−133
1996 RAV4 (RM447U)
Fluid type: ATF DEXRON ®II
NOTICE:
Do not overfill.
(b) Check the fluid condition.
If the fluid smells burnt or is black, replace it.
(c) Replace the fluid.
(1) Remove the drain plug and drain the fluid.
(2) Reinstall the drain plug securely.
(3) With the engine OFF, add new fluid through the oil
filler pipe.
Fluid type: ATF DEXRON ®II
Capacity:
Drain and refill: 3.3 liters (3.5 US qts, 2.9 lmp. qts)
(4) Start the engine and shift the shift lever into all posi-
tions from P to L position and then shift into P posi-
tion.
(5) With the engine idling, check the fluid level. Add
fluid up to the COOL level on the dipstick.
(6) Check the fluid level at the normal operating tem-
perature 70 − 80°C (158 − 176°F) and add as nec-
essary.
NOTICE:
Do not overfill.
(d) Check the fluid leaks.
Check for leaks in the transaxle.
If there are leaks, it is necessary to replace O−rings, gaskets,
oil seals, plugs or other parts.
(e) Inspect and adjust throttle cable.
(1) Check that the throttle valve is fully closed.
(2) Check that the inner cable is not slack.
(3) Measure the distance between the outer cable end
and stopper on the cable.
Standard distance: 0 − 1 mm (0 − 0.04 in.)
If the distance is not within the standard, adjust the cable by the
adjusting nuts.

Q06970
Shift Solenoid
Valve No. 1Transaxle
Shift Solenoid
Valve No. 2
To Cruise Control ECUS2ECM
P−B 3
E1
E1
E4 E4
1
152
PB+ B+
S1
Q08088
S1
S2
DI−148
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A241E)
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

Q08870
Fuse Block
Junction Connector
FL Block
Stop Light RH Stop Light LHTo ABS ECU
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A241E)
DI−159
1996 RAV4 (RM447U)
Stop Light Switch Circuit
CIRCUIT DESCRIPTION
The purpose of this circuit is to prevent the engine from stalling, while driving in lock−up condition, when
brakes are suddenly applied.
When the brake pedal is operated, this switch sends a signal to ECM. Then the ECM cancels of the lock−up
clutch while braking is in progress.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check operation of stop light.
CHECK:
Check if the stop lights go on and off normally when the brake pedal is operated and released.
NG Check and repair stop light circuit.
OK
DI98Q−03

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

BE3840Q07660D02287
ON
OD
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A241E)
DI−167
1996 RAV4 (RM447U)
2 Check voltage between terminal OD of cruise control ECU harness side connec-
tor and body ground.
PREPARATION:
(a) Disconnect the cruise control ECU connector.
(b) Turn the ignition switch ON.
CHECK:
Measure the voltage between terminal OD of the cruise control
ECU harness side connector and body ground.
OK:
Voltage: 9 − 14 V
OK Check and replace cruise control ECU (See
page IN−30).
NG
3 Check harness and connector between cruise control ECU and ECM (See page
IN−30).
NG Repair or replace harness or connector.
OK
Check and replace ECM.

Q06065
Q06076
D02315
OK if hot
Add if hot
D00699
D00700
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A540H)
DI−181
1996 RAV4 (RM447U)
(d) Replace the ATF.
NOTICE:
Do not overfill.
(1) Using a 10 mm hexagon wrench, remove the drain
plug, gasket and drain the fluid.
(2) Install a new gasket and the drain plug securely.
(3) Add new fluid through the filler pipe.
Fluid type: ATF type T or equivalent
Drain and refill: 3.3 liters (3.5 US qts, 2.9 lmp. qts)
(4) Start the engine and shift the selector into all the
positions from P through L and then shift into the P
position.
(5) With the engine idling, check the fluid level. Add
fluid up to the COOL level on the dipstick.
(6) Check the fluid level with the normal fluid tempera-
ture 70 − 80°C (158 − 176°F) and add as neces-
sary.
NOTICE:
Do not overfill.
(e) Replace the transfer oil.
(1) Using a 10 mm hexagon wrench, remove the drain
plug and drain the oil.
(2) Install the drain plug.
(3) Add new oil through the filler pipe.
Recommended oil:
Oil grade API GL−5
Viscosity SAE 75W−90
Capacity: 0.7 liters (0.7 US qts, 0.6 lmp. qts)
(4) Check the oil level and add as necessary.
NOTICE:
Do not overfill.