Page 420 of 1354

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
Page 421 of 1354
A00417
IGF
(+)
ON
− DIAGNOSTICSENGINE
DI−101
1996 RAV4 (RM447U)
INSPECTION PROCEDURE
1 Check spark plug and spark (See page IG−1).
NG Go to step 4.
OK
2 Check for open and short in harness and connector in IGF signal circuit between
ECM and igniter (See page IN−30).
NG Repair or replace harness or connector.
OK
3 Disconnect igniter connector and check voltage between terminal IGF of ECM
connector and body ground.
PREPARATION:
(a) Disconnect igniter connector.
(b) Remove side trim cover (See page SF−61).
(c) Turn ignition switch ON.
CHECK:
Measure voltage between terminal IGF of ECM connector and
body ground.
OK:
Voltage: 4.5 − 5.5 V
OK Replace igniter.
NG
Check and replace ECM (See page IN−30).
Page 426 of 1354
DI−106
− DIAGNOSTICSENGINE
1996 RAV4 (RM447U)
TOYOTA hand−held tester:
1 Connect TOYOTA hand−held tester and check STA signal.
PREPARATION:
(a) Connect the TOYOTA hand−held tester to the DLC3.
(b) Turn ignition switch ON and push TOYOTA hand−held tester main switch ON.
CHECK:
Read STA signal on the TOYOTA hand−held tester while starter operates.
OK:
Ignition Switch PositionONSTART
STA SignalOFFON
OK Proceed to next circuit inspection shown on
matrix chart (See page DI−20).
NG
2 Check for open in harness and connector between ECM and starter relay
(See page IN−30).
NG Repair or replace harness or connector.
OK
Check and replace ECM
(See page IN−30).
Page 436 of 1354
S02410
EFI
MAIN No.1
IG Switch AM2
MAIN
FL
BatteryPark/Neutral
Position Switch
(Clutch Start
Switch)EFI Main
RelayCircuit Opening
Relay
Fuel Pump
ECM
FC
Tr
STA
NE (STA Signal)
(NE Signal) Starter IGN
ST Relay DI−11 6
− DIAGNOSTICSENGINE
1996 RAV4 (RM447U)
Fuel Pump Control Circuit
CIRCUIT DESCRIPTION
In the diagram below, when the engine is cranked, current flows from terminal ST of the ignition switch to
the starter relay coil and also current flows to terminal STA of ECM (STA signal).
When the STA signal and NE signal are input to the ECM, Tr is turned ON, current flows to coil of the circuit
opening relay, the relay switches on, power is supplied to the fuel pump and the fuel pump operates.
While the NE signal is generated (engine running), the ECM keeps Tr ON (circuit opening relay ON) and the
fuel pump also keeps operating.
DI407−02
Page 440 of 1354
BE6653S00839S01830A06622
FC
(+)
Fuel Inlet Hose
ON
DI−120
− DIAGNOSTICSENGINE
1996 RAV4 (RM447U)
OBDII scan tool (exculding TOYOTA hand−held tester)
1 Check fuel pump operation.
PREPARATION:
(a) Remove side trim cover (See page SF−61).
(b) Turn ignition switch ON.
CHECK:
(a) Connect between terminal FC of ECM and body ground.
(b) Check for fuel pressure in the inlet hose when it is pinched
off.
OK:
There is pressure in the inlet hose.
HINT:
At this time, you will hear a fuel flowing noise.
OK Check for starter signal circuit (See page
DI−105).
NG
2 Check for ECM power source circuit (See page DI−11 3).
NG Repair or replace.
OK
3 Check circuit opening relay (See page SF−40).
NG Replace circuit opening relay.
OK
Page 450 of 1354

Q08495
DTC3 DI−130
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A241E)
1996 RAV4 (RM447U)
(b) Clear the DTC.
The following actions will erase the DTCs and
freezed frame data.
Operating the OBDII scan tool (complying with SAE
J1978) or TOYOTA hand−held tester to erase the
codes (See the TOYOTA hand−held tester or OBD
II scan tool’s instruction book for operating instruc-
tions.).
NOTICE:
If the TOYOTA hand−held tester switches the ECM from the
normal mode to the check mode or vice−versa, or if the
ignition switch is turned from ON to ACC or OFF during the
check mode, the DTCs and freezed frame data will be
erased.
(c) Inspect the DLC3.
The vehicle’s ECM uses V.P.W. (Variable Pulse Width) for
communication to comply with SAE J1850. The terminal
arrangement of DLC3 complies with SAE J1962 and
matches the V.P.W. format.
Terminal No.Connection/Voltage or ResistanceCondition
2Bus Line/Pulse generationDuring communication
4Chassis Ground − Body/1 Ω or lessAlways
5Signal Ground − Body/1 Ω or lessAlways
16Battery Positive − Body/9 − 14 V or 1 Ω or lessAlways
HINT:
If your display shows ”UNABLE TO CONNECT TO VEHICLE”
when you have connected the cable of the OBD II scan tool or
TOYOTA hand−held tester to the DLC3, turned the ignition
switch ON and operated the scan tool, there is a problem on the
vehicle side or tool side.
If communication is normal when the tool is connected to
another vehicle, inspect the DLC3 on the original vehicle.
If communication is still not possible when the tool is con-
nected to another vehicle, the problem is probably in the
tool itself, so consult the Service Department listed in the
tool’s instruction manual.
Page 460 of 1354

DI40E−02
Z16062
ECM Terminals
E4E5
E6 DI−140
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A241E)
1996 RAV4 (RM447U)
TERMINALS OF ECM
Symbols (Terminal No.)Wiring ColorConditionSTD Voltage (V)
SPD (E6−9) − E1 (E4−14)V−W − BRDisconnect cruise control connector and IG ON
Turn one front wheel slowlyPulse signal is output
Below 1 ↔ 4 − 6
S1 (E4−2) − E1 (E4−14)P−B − BR
IG OFF Disconnect ECM connector11 − 15 Ω
IG ON10 − 14
1st or 2nd gear10 − 14
3rd or O/D gearBelow 1
S2 (E4−15) − E1 (E4−14)P − BR
IG OFF Disconnect ECM connector11 − 15 Ω
IG ONBelow 1
2nd or 3rd gear10 − 14
1st or O/D gearBelow 1
SL (E4−1) − E1 (E4− 4)Y−B − BR
IG OFF Disconnect ECM connector11 − 15 Ω
IG ONBelow 1
Vehicle driving under look−up position10 − 14
OD1 (E6−20) − E1 (E4−14)Y−B − BRIG ON4 − 6
OD2 (E6−7) − E1 (E4−14)LG − BRO/D main switch ON (O/D ON)10 − 14
O/D main switch OFF (O/D OFF)Below 1
L (E6−19) − E1 (E4−14)LG − BRIG ON Shift lever L position10 − 14
IG ON Shift lever other than L positionBelow 1
R (E6−8) − E1 (E4−14)R−B − BRIG ON Shift lever R position10 − 14
IG ON Shift lever other than R positionBelow 1
2 (E−18)− E1 (E4−14)LG−R − BRIG ON Shift lever 2 position10 − 14
IG ON Shift lever other than R positionBelow 1
NSW (E6−22) − E1 (E4−14)B−W − BRIG ON Shift lever P or N positionBelow 1
IG ON Shift lever other than P or N position10 − 14
B/K (E6−4) − E1 (E4−14)G−W − BRIG ON Brake papel is depressed7.5 − 14
IG ON Brake papel is releasedBelow 1
P (E6−15) − E1 (E4−14)R−G − BRPWR pattern7.5 − 14
NORM patternBelow 1
Page 473 of 1354
Q06971
Solenoid Valve SLTransaxle
E1
E4ECM
B+
SL 2
1
Y−B
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A241E)
DI−153
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
DI40K−01