1996 TOYOTA RAV4 fuse

− DIAGNOSTICSCRUISE CONTROL SYSTEM
DI−365
1996 RAV4 (RM447U)
4 Check for open in harness and connector between ECU and GAUGE fuse
(See page IN−30).
NG Repair or replace harness or connector.
OK
Check and replace ECU.

N21699
Ignition
Switch
1D 1F1E
1A
1D 1K9
22 4 247
466
B 14
BB
Junction
Connector W−BW−B
13
GND W
IG
Fuse Block
ALT
100 A
BatteryJ/B No.1R/B No.2 J/B No.1
J/B No.1Cruise Control
ECU
Fuse Block
ECU−IG
7.5 AB−Y B−Y
W
B−Y
AM1
40 AW DI−366
− DIAGNOSTICSCRUISE CONTROL SYSTEM
1996 RAV4 (RM447U)
ECU Power Source Circuit
CIRCUIT DESCRIPTION
The ECU power source supplies power to the actuator and sensors, etc., Terminal GND and the cruise con-
trol ECU case are grounded.
WIRING DIAGRAM
DI42X−02

N17440
ECU−IG
Fuse Block
BE3840N14703I09122
ON
(−)GND
(+)B
− DIAGNOSTICSCRUISE CONTROL SYSTEM
DI−367
1996 RAV4 (RM447U)
INSPECTION PROCEDURE
1 Check ECU−IG fuse.
PREPARATION:
Remove ECU−IG fuse from fuse block.
CHECK:
Check continuity of ECU−IG fuse.
OK:
Continuity
NG Check for short in all the harness and compo-
nents connected to the ECU−IG fuse
(See attached wiring diagram).
OK
2 Check voltage between terminals B and GND of ECU connector.
PREPARATION:
Remove ECU with connectors still connected.
CHECK:
(a) Turn ignition switch ON.
(b) Measure voltage between terminals B and GND of ECU
connector.
OK:
Voltage: 10 − 16 V
OK Proceed to next circuit inspection shown on
matrix chart (See page DI−336).
NG

N21700
FL Block
MAIN Fuse
80 A
BatteryR/B No.2
DOME Fuse
225
7
1J1G
15BATT Cruise Control ECU
L−Y W
15 AL−Y
N17904
DOME Fuse R/B No.2
− DIAGNOSTICSCRUISE CONTROL SYSTEM
DI−369
1996 RAV4 (RM447U)
Back−up Power Source Circuit
CIRCUIT DESCRIPTION
The ECU back−up power source provides power even when the ignition switch is off and is used for DTC
memory, etc.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check DOME fuse.
PREPARATION:
Remove DOME fuse from R/B No.2.
CHECK:
Check continuity of DOME fuse.
OK:
Continuity
NG Check for short in all the harness and
components connected to the DOME fuse
(See attached wiring diagram).
OK
DI42Y−02

EM0EJ−01
S01354
TOYOTA
Hand−held Tester
S01261
DLC1
TE1
E1SST
S01272
− ENGINE MECHANICALIGNITION TIMING
EM−11
1996 RAV4 (RM447U)
IGNITION TIMING
INSPECTION
1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
2. CONNECT TOYOTA HAND−HELD TESTER OR OBD II
SCAN TOOL
(a) Remove the fuse cover on the instrument panel.
(b) Connect the TOYOTA hand−held tester or OBD II scan
tool to the DLC3.
(c) Please refer to the TOYOTA hand−held tester or OBD II
scan tool operator’s manual for further details.
3. CONNECT TIMING LIGHT TO ENGINE
4. INSPECT IGNITION TIMING
(a) Using SST, connect terminals TE1 and E1 of the DLC1.
SST 09843−18020
(b) Using a timing light, check the ignition timing.
Ignition timing:
8 − 12° BTDC @ idle
(Transmission in neutral position)
(c) Remove the SST from the DLC1.
SST 09843−18020
5. FURTHER CHECK IGNITION TIMING
Ignition timing:
0 − 10° BTDC @ idle
(Transmission in neutral position)
HINT:
The timing mark moves in a range between 0° and 10°
6. DISCONNECT TIMING LIGHT FROM ENGINE
7. DISCONNECT TOYOTA HAND−HELD TESTER OR
OBD II SCAN TOOL

Q
R
S
T
U
V
W
X
6
B HOW TO USE THIS MANUAL
WITH THE IGNITION SW TURNED ON, THE CURRENT FLOWS TO TERMINAL 3 OF THE POWER WINDOW MASTER SW, TERMINAL 2 OF THE POWER WINDOW CONTROL
RELAY AND TERMINAL 8 OF THE POWER WINDOW SW THROUGH THE DOOR FUSE.
1.DRIVER'S WINDOW MANUAL UPº OPERATION BY MASTER SW
HOLDING MANUAL SW (DRIVER'S) ON UPº POSITION LOCATED IN POWER WINDOW MASTER SW, THE CURRENT FLOWS TO TERMINAL 5 OF THE POWER WINDOW
CONTROL RELAY THROUGH TERMINAL 3 OF THE MASTER SW TERMINAL 2 TO OPERATE A POWER WINDOW CONTROL RELAY. THUS THE CURRENT INSIDE THE RELAY
FLOWS FROM TERMINAL 2 OF THE RELAY TERMINAL 1 TERMINAL 2 OF THE POWER WINDOW MOTOR TERMINAL 1 TERMINAL 4 OF THE RELAY TERMINAL
3 TO GROUND. THE MOTOR TURNS TO ASCENT THE WINDOW. RELEASING THIS SW, THE ROTATION OF MOTOR IS STOPPED AND THE WINDOWS CAN STOP AT WILL
POINT.
(FOR THE MANUAL DOWNº OPERATION, CURRENT FLOWS IN THE REVERSE DIRECTION BECAUSE THE TERMINALS WHERE IT FLOW ARE CHANGED).
2.DRIVER'S WINDOW AUTO DOWNº OPERATION BY MASTER SW
ONCE THE AUTO DOWNº BUTTON OF THE MASTER SW IS PUSHED, THE CURRENT FLOW TERMINAL 9 OF THE POWER WINDOW CONTROL RELAY THROUGH TERMINAL
3 OF THE MASTER SW TERMINALS 8 AND 9 TO OPERATE THE RELAY. THUS THE CURRENT INSIDE THE POWER WINDOW CONTROL RELAY FLOWS FROM TERMINAL
2 OF THE RELAY TERMINAL 4 TERMINAL 1 OF THE POWER WINDOW MOTOR TERMINAL 2 TERMINAL 1 OF THE RELAY TERMINAL 3 TO GROUND.
THE MOTOR CONTINUES THE ROTATION ENABLING TO DESCENT THE WINDOW.
THE WINDOW DESCENDS TO THE END POSITION. THE CURRENT WILL BE CUT OFF TO RELEASE THE AUTO DOWN FUNCTION BASED ON THE INCREASING CURRENT
BETWEEN TERMINAL 2 OF THE RELAY AND TERMINAL 1 IN RELAY.
3.DRIVER'S WINDOW AUTO DOWN RELEASE OPERATION BY MASTER SW
HOLDING THE MANUAL SW (DRIVER'S) ON UPº POSITION IN OPERATING AUTO DOWN. THE CURRENT FROM TERMINAL 3 OF THE MASTER SW PASSING TERMINAL 2
FLOWS TERMINAL 5 OF THE RELAY AND RELEASES THE AUTO DOWN FUNCTION IN THE POWER WINDOW CONTROL RELAY. RELEASING THE HAND FROM SW, WINDOW
STOPS AND CONTINUING ON TOUCHING SW, THE FUNCTION SWITCHES TO MANUAL UP OPERATION.
4.PASSENGER'S WINDOW UP OPERATION (MASTER SW) AND WINDOW LOCK SW OPERATION
HOLDING PASSENGER'S WINDOW SW (MASTER SW) ON UPº, THE CURRENT FLOWS FROM TERMINAL 3 OF THE MASTER SW PASSING TERMINAL 6 TO TERMINAL 3 OF
THE POWER WINDOW SW (PASSENGER'S) TERMINAL 4 TERMINAL 2 OF THE MOTOR TERMINAL 1 TERMINAL 9 OF THE POWER WINDOW SW TERMINAL
7 TERMINAL 1 OF THE MASTER SW TERMINAL 4 TO GROUND. THE MOTOR RUNS TO ASCENT THE WINDOW. RELEASING THIS SW, THE ROTATION OF MOTOR
IS STOPPED AND WINDOW CAN STOP AT WILL PLACE.
SWITCHING THE WINDOW LOCK SW IN LOCKº POSITION, THE CIRCUIT IS OPENED AND STOPPED THE MOTOR ROTATION.
(FOR THE DOWN OPERATION, CURRENT FLOWS IN THE REVERSE DIRECTION BECAUSE THE TERMINALS WHERE IT FLOWS ARE CHANGED).
P 2 POWER WINDOW CONTROL RELAY
3-GROUND: ALWAYS CONTINUITY
2-GROUND: APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION
5-GROUND: APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION AND THE MASTER SW AT UP POSITION
8-GROUND: APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION AND THE MASTER SW AT AUTO DOWN POSITION
9-GROUND: APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION AND THE MASTER SW AT DOWN OR AUTO DOWN POSITION
P 4 POWER WINDOW MASTER SW
4-GROUND: ALWAYS CONTINUITY
3-GROUND: APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION
WINDOW LOCK SW
OPEN WITH THE WINDOW LOCK SW AT LOCK POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
P 221P 421P 621
P 321P 521
: RELAY BLOCKS
CODESEE PAGERELAY BLOCK (RELAY BLOCK LOCATION)
116R/B NO. 1 (INSTRUMENT PANEL LEFT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
3B14J/B NO. 3 AND COWL WIRE (INSTRUMENT PANEL LEFT SIDE)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
ID126FRONT DOOR RH WIRE AND COWL WIRE (RIGHT KICK PANEL)
IH126FRONT DOOR LH WIRE AND COWL WIRE (LEFT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINT LOCATION
IC24COWL LEFT
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I 524COWL WIRE
SYSTEM OUTLINE
SERVICE HINTS

* The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.
H POWER SOURCE (Current Flow Chart)
The chart below shows the route by which current flows from the battery to each electrical source (Fusible Link, Circuit
Breaker, Fuse, etc.) and other parts.
The next page and following pages show the parts to which each electrical source outputs current.
POWER SOURCE
8
B HOW TO USE THIS MANUAL
The Current Flow Chartº section, describes which parts each power source (fuses, fusible links, and circuit breakers)
transmits current to. In the Power Source circuit diagram, the conditions when battery power is supplied to each system are
explained. Since all System Circuit diagrams start from the power source, the power source system must be fully understood.

11
C
FINDING A SHORT CIRCUIT
(a) Remove the blown fuse and disconnect all loads of the
fuse.
(b) Connect a test light in place of the fuse.
(c) Establish conditions in which the test light comes on.
Example:
- Ignition SW on
- Ignition SW and SW 1 on
- Ignition SW, SW 1 and Relay on (Connect the
Relay) and SW 2 off (or Disconnect SW 2)
(d) Disconnect and reconnect the connectors while
watching the test light.
The short lies between the connector where the test
light stays lit and the connector where the light goes
out.
(e) Find the exact location of the short by lightly shaking
the problem wire along the body.
CAUTION:
(a) Do not open the cover or the case of the ECU unless
absolutely necessary. (If the IC terminals are
touched, the IC may be destroyed by static
electricity.)
(b) When replacing the internal mechanism (ECU part)
of the digital meter, be careful that no part of your
body or clothing comes in contact with the
terminals of leads from the IC, etc. of the
replacement part (spare part).
DISCONNECTION OF MALE AND FEMALE
CONNECTORS
To pull apart the connectors, pull on the connector itself, not the
wire harness.
HINT: Check to see what kind of connector you are disconnecting
before pulling apart.