1996 TOYOTA RAV4 OBD port

DI3Z5−01
Vehicle Brought to Workshop
Customer Problem Analysis P. DI−2
Problem Symptom Confirmation
If the engine does not start perform steps 10 and 12 firstConnect the OBD II scan tool or TOYOTA hand−held tester to DLC3 P. DI−3
If the display indicates a communication fault in the tool, inspect DLC3 P. DI−3
Check DTC and Freeze Frame Data (Pre−check)
Record or Print DTC and Freeze Frame Data P. DI−3
Clear DTC and Freeze Frame Data P. DI−3
Visual Inspection
Setting the Check Mode Diagnosis P. DI−3
Symptom Simulation P.IN−20
Basic Inspection P. DI−3DTC Chart P. DI−14
Matrix Chart of Problems Symptoms P. DI−20
Circuit Inspection P. DI−21
Adjustment, Repair
DTC Check P. DI−3
Titles insideare titles of pages in
in the bottom portion. See the indicated
pages for detailes explanations.this manual, with the page number indicated
Malfunction
occurs.Malfunction does not occur.
Parts Inspection
Check for Intermittent Problems P. DI−3
Identification of Problem
Confirmation Test
End 1
2
3
4
5
6
7
108
9
11
12
13
15 14
16
Normal Malfunction code.
17
− DIAGNOSTICSENGINE
DI−1
1996 RAV4 (RM447U)
ENGINE
HOW TO PROCEED WITH TROUBLESHOOTING
Troubleshoot in accordance with the procedure on the following pages.

DI3ZC−01
P01242
(V)
(3.96)
3.6
2.4
1.2
150 450 750 (840)mmHg
20
60
100(112)
Manifold Absolute PressurekPa
Output Voltage
− DIAGNOSTICSENGINE
DI−21
1996 RAV4 (RM447U)
CIRCUIT INSPECTION
DTC P0105 Manifold Absolute Pressure / Barometric
Pressure Circuit Malfunction
CIRCUIT DESCRIPTION
By a built−in sensor unit, the manifold absolute pressure sensor
detects the intake manifold pressure as a voltage. The ECM
then determines the basic injection duration and basic injection
advance angle based on this voltage. Since the manifold abso-
lute pressure sensor does not use the atmospheric pressure as
a criterion, but senses the absolute pressure inside the intake
manifold (the pressure in proportion to the present absolute
vacuum 0) , it is not influenced by fluctuations in the atmospher-
ic pressure due to high altitude and other factors. This permits
it to control the air−fuel ratio at the proper lever under all condi-
tions.
DTC No.DTC Detecting ConditionTrouble Area
P0105Open or short manifold absolute pressure sensor circuit
Open or short in manifold absolute pressure sensor circuit
Manifold absolute pressure sensor
ECM
If the ECM detects DTC ”P0105” it operates the fail safe function, keeping the ignition timing and injection
volume constant and making it possible to drive the vehicle.
HINT:
After confirming DTC P0105 use the OBDII scan tool or TOYOTA hand−held tester to confirm the manifold
absolute pressure from ”CURRENT DATA”.
Manifold Absolute PressureMalfunction
0 kpaPIM circuit short
130 kpa or more
VC circuit open or short
PIM circuit open
E2 circuit open

P24296
Throtttle Position
SensorECM
VC
VTA
E2 DI−34
− DIAGNOSTICSENGINE
1996 RAV4 (RM447U)
DTC P0120 Throttle/Pedal Position Sensor/Switch ”A”
Circuit Malfunction
CIRCUIT DESCRIPTION
The throttle position sensor is mounted in the throttle body and
detects the throttle valve opening angle. When the throttle valve
is fully closed, a voltage of approximately 0.3 V − 0.8 V is ap-
plied to terminal VTA of the ECM. The voltage applied to the ter-
minal VTA of the ECM increases in proportion to the opening
angle of the throttle valve and becomes approximately 3.2 − 4.9
V when the throttle valve is fully opened. The ECM judges the
vehicle driving conditions from this signal input from terminal
VTA, and uses them as one of the conditions for deciding the
air−fuel ration correction, power increases correction and fuel−
cut control etc.
DTC No.DTC Detecting ConditionTrouble Area
P0120
Condition (a) or (b) continues
(a) VTA < 0.1 V
(b) VTA > 4.9 VOpen or short in throttle position sensor circuit
Throttle position sensor
ECM
HINT:
After confirming DTC P0120 use the OBDII scan tool or TOYOTA hand−held tester to confirm the throttle
valve opening percentage.
Throttle Valve opening position expressed as percentageTrouble AreaThrottle Valve fully closedThrottle Valve fully open
0 %0 %VC line open
VTA line open or short
100 %100 %E2 line open
DI3ZH−01

DI409−02
Vehicle Brought to Workshop
P.DI−126
Connect the OBD ll Scan Tool or TOYOTA Hand−Held Tester to DLC3
If your display shows ”UNABLE TO CONNECT TO VEHICLE” when you have
connected the scan tool/TOYOTA hand−held tester, inspect DLC3 P. DI−127
Check DTC and Freeze Frame Data (Pre−check)
Record or Print DTC and Freeze Frame Data P. DI−127
Clear DTC and Freeze Frame Data P. DI−127 Customer Problem Analysis
Visual Inspection
DTC CheckSymptom Simulation Setting the Check Mode Diagnosis P. DI−127
Problem Symptom Confirmation
P. IN−20 Symptom does
not occur
OK Codethe page number indicated in the bottom portion. See the
indicated pages for detailed explanations.
Preliminary Checkare titles of pages in the manual, with Item inside
Mechanical System Tests DTC Chart
Chapter 1
(Electronic)Manual Shifting Test
Matrix Chart of Symptoms Problems − P. DI−140
(On−vehicle)
 Pattern Select Signal Check  O/D Signal Check
InspectionCircuit(Off−vehicle) Chapter 2 Chapter 3
END Repair
Confirmation Test
Identification of ProblemParts Inspection P. DI−127
P. DI−127P. DI−127
P. DI−127
P. DI−127
P. DI−145 − DI−168 P. DI−141 1
2
P. DI−141P. DI−141 3
4
5
6
78
9
1011
12
13
14
16
18 15
17
Symptom occurs
OKNG
OKNG
NG
OK
OK OK
NG
NGNG
Step 2, 3, 4, 6, 9, 15, 18:
Diagnostic steps permitting the use of the TOYOTA
hand−held tester or TOYOTA brake−out−box.
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A241E)
DI−125
1996 RAV4 (RM447U)
AUTOMATIC TRANSAXLE (A241E)
HOW TO PROCEED WITH TROUBLESHOOTING
Trobleshoot in accordance with the procedure on the follwoing pages.

DI40R−02
Vehicle Brought to Workshop
Customer Problem Analysis
Check DTC and Freeze Frame Data (Pre−check)
Record or Print DTC and Freeze Frame Data P.
DI−173
Clear DTC and Freeze Frame Data P. DI−173
Visual Inspection
Setting the Check Mode Diagnosis P.
DI−173
1
Items insideare titles of pages in this manual, with the
page number indicated in the bottom portion. See the indicated
pages for detailed explanations.

Connect the OBD II scan tool or TOYOTA hand−held tester to DLC3.
If your display shows ”UNABLE TO CONNECT TO VEHICLE” when you have connected the
scan tool / TOYOTA hand−held tester, inspect DLC3 P.
DI−173
2
3
4
5
6
Symptom does not occur
Problem Symptom Confirmation8
7Symptom Simulation
P. I N−XXX
Symptom occurs
DTC CheckP. DI−173OK Code11Preliminary Check
P.
DI−173
DTC Chart
P. DI−189Mechanical System Test
P.
DI−173
Manual Shifting Test
P.
DI−173 OK
OK
Chapter 1
(Electronic)Chapter 2
(On−Vehicle)OKChapter 3
(Off−Vehicle)OK Matrix Chart of Problems Symptoms − P. DI−192
Circuit
Inspection O/D Cancel Signal Circuit Check
 Stop Light Signal Check
NG
Parts Inspection
NG
NGNG
Identification of ProblemRepairConfirmation TestEnd
NG
NG
13NG
15 16
17 18 9
10
P. DI−192
P. DI−196 − DI−229 P. DI−172
12
14
P. DI−192P. DI−192
Step 2, 3, 4, 6, 9, 15, 18:
Diagnostic steps permitting the use of the TOYOTA
hand−held tester or TOYOTA brake−out−box.
− DIAGNOSTICSAUTOMATIC TRANSAXLE (A540H)
DI−171
1996 RAV4 (RM447U)
AUTOMATIC TRANSAXLE (A540H)
HOW TO PROCEED WITH TROUBLESHOOTING
Troubleshoot in accordance with the procedure on the following pages.