1996 TOYOTA RAV4 Service Repair Manual

160
AIR CONDITIONING
IH 1 1
IG IB210
W-BB-L B-L
B-L
B-L
B-L B B B-W
B-W B-W
R-B
BR
OO
W-B
W-B
W-B W-B
W-B
FROM POW ER SOURCE SYSTEM (
SEE PAGE 54)
IBLE
K BLOCK
B-L
I 8
B-L
GAUGE
E BLOCK]
-L R-L
L-R50A H TR5FUS
LIN F 7 3
B BA C
JUN CTIO N
CONNECTORB J10 , J11A
R-L
IH 1 22 1
1324
B-W
BLOW ER RESISTORBLOWER MOTORB 4B 3
821
5
6 HI M2 M1
LO BLO WER S W B 5
OFF
10A
[FUS
4F 8
1B 81E 8
R
M
4C 84C1 4B 44C 7 4B 8
34 15
2 4B 74A2
4B 14B5127. 5A A/C HEATER
RELAY4B 9

161
EA1 6 25
66 B-L
B-L
W-BB-L
B- RL-BB-L
Y
G-
A/C AM PLIFIER A12R-W
TO FAN NO. 3
RELAY E 1
1366 B- L
B-L
W
B- L
MG/C RELAYI 7 YY EFROSTER
ODE SW3
1
2 1 3
B- RB- LW-R
A/C DUAL PRESSURE SW
TC H A 3
A 2
1 2IG 2 3IG24
IB 2 11 IB212 4L
BR BR
W-RBR
BR
W-R
Y
G-W
R-Y
Y-G
B L-B L-Y W-B
L-Y
L-B
A/C THERMISTOR A14
JU NC TIO N
CO NNECTO R J 3
IG 2 84
D D ENGINE CONTROL
MODULE E 6IG NITE R
JUNCTION
CO OR J 4
BB
I 2
OFF
ON
4 5 6
A/C CONTROL SW A13
1 2
D
M D
A/C M AG NETIC CLU
AND LOCK SENSOR
EX T
10 21
NNECT
ACT A C1
4 1 7 10 8 14 13 9 12 2 5
E IG+ M G C TE SS R- SSR+ A/C LE D+ ACT A C1 IG-
A
A
A

162
AIR CONDITIONING
HEATER BLOWER MOTOR OPERATION
CURRENT IS APPLIED AT ALL TIMES THROUGH THE HTR FUSE TO TERMINAL 5 OF THE HEATER RELAY.
WHEN THE IGNITION SW IS TURNED ON, CURRENT FLOWS THROUGH THE GAUGE FUSE TO TERMINAL 1 OF THE HEATER RELAY
"THE COIL "TERMINAL 3 "TERMINAL 5 OF THE BLOWER SW.
*LOW SPEED OPERATION
WHEN THE BLOWER SW IS MOVED TO LO POSITION, THE CURRENT FLOWS TO TERMINAL 5 OF THE BLOWER SW "TERMINAL 6
"GROUND, CAUSING THE HEATER RELAY TO SWITCH ON. THIS CAUSES THE CURRENT TO FLOW FROM THE HTR FUSE "
TERMINAL 5 OF THE HEATER RELAY "TERMINAL 4 "TERMINAL 1 OF THE BLOWER MOTOR "TERMINAL 2 "TERMINAL 1 OF
THE BLOWER RESISTOR "TERMINAL 4 "GROUND, CAUSING THE BLOWER MOTOR TO ROTATE AT LOW SPEED.
*MEDIUM SPEED OPERATION (OPERATION AT M1, M2)
WHEN THE BLOWER SW IS MOVED TO M1 POSITION, THE CURRENT FLOWING TO TERMINAL 5 OF THE BLOWER SW "
TERMINAL 6 "GROUND, TURNS THE HEATER RELAY ON. THIS CAUSES THE CURRENT TO FLOW FROM THE HTR FUSE "
TERMINAL 5 OF THE HEATER RELAY "TERMINAL 4 "TERMINAL 1 OF THE BLOWER MOTOR "TERMINAL 2 "TERMINAL 1 OF
THE BLOWER RESISTOR "TERMINAL 2 "TERMINAL 1 OF THE BLOWER SW "TERMINAL 6 "GROUND. THIS TIME, THE
BLOWER RESISTANCE OF THE BLOWER RESISTOR IS LESS THAN AT LOW SPEED, SO THE BLOWER MOTOR ROTATES AT
MEDIUM LOW SPEED.
WHEN THE BLOWER SW IS MOVED TO M2 POSITION, CURRENT FLOWING THROUGH THE MOTOR FLOWS FROM TERMINAL 1 OF
THE BLOWER RESISTOR "TERMINAL 3 "TERMINAL 2 OF THE BLOWER SW "TERMINAL 6 "GROUND. THIS TIME,
RESISTANCE OF THE BLOWER RESISTOR IS LESS THAN AT M1 POSITION, SO THE BLOWER MOTOR ROTATES AT MEDIUM HIGH
SPEED.
*HIGH SPEED OPERATION
WHEN THE BLOWER SW IS MOVED TO HI POSITION, THE CURRENT FLOWS TO TERMINAL 5 OF THE BLOWER SW "TERMINAL 6
"GROUND AND TURNS THE HEATER RELAY ON.
THIS CAUSES THE CURRENT TO FLOW FROM THE HTR FUSE TO TERMINAL 5 OF THE HEATER RELAY "TERMINAL 4 "
TERMINAL 1 OF THE BLOWER MOTOR "TERMINAL 2 "TERMINAL 8 OF THE BLOWER SW "TERMINAL 6 "GROUND, CAUSING
THE BLOWER MOTOR TO ROTATE AT HIGH SPEED.
A 3 A/C DUAL PRESSURE SW
1-4 : OPEN WITH THE PRESSURE LESS THAN 2.0 KG/CM2 (30 PSI, 206 KPA) OR ABOVE 32 KG/CM2 (384 PSI, 2648 KPA)A12 A/C AMPLIFIER
12-5 : CONTINUITY WITH THE A/C CONTROL SW ON AND THE IGNITION SW AT ON POSITION
13-GROUND : ALWAYS CONTINUITY
05-GROUND : ALWAYS CONTINUITY
02-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW ON
A14 A/C THERMISTOR
1-2 : APPROX. 2341
234 W AT 15
C (59
F)
B 4 BLOWER RESISTOR
1-3 : APPROX. 0.4 W
1-2 : APPROX. 1.1 W
1-4 : APPROX. 2.8 W
B 5 BLOWER SW
5-6 : CONTINUITY WITH THE BLOWER SW AT LO, M1, M2 OR HI POSITION
1-6 : CONTINUITY WITH THE BLOWER SW AT M1 POSITION
2-6 : CONTINUITY WITH THE BLOWER SW AT M2 POSITION
8-6 : CONTINUITY WITH THE BLOWER SW AT HI POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A 228B 430I 229
A 328B 530J 331
A1230D 330J 431
A1330E 631J10A31
A1430F 728J11B31
B 330F 831
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
625R/B NO. 6 (ENGINE COMPARTMENT LEFT)
SYSTEM OUTLINE
SERVICE HINTS

163
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1E20FUSE BLOCK ASSY WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
4A22ENGINE WIRE AND J/B NO. 4 (RIGHT KICK PANEL)
4B22INSTRUMENT PANEL WIRE AND J/B NO 4 (RIGHT KICK PANEL)4C22INSTRUMENT PANEL WIRE AND J/B NO. 4 (RIGHT KICK PANEL)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
EA134ENGINE WIRE AND ENGINE ROOM MAIN WIRE (INSIDE OF R/B NO. 2)
IB236ENGINE ROOM MAIN WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
IG238ENGINE WIRE AND INSTRUMENT PANEL WIRE (UNDER THE INSTRUMENT PANEL CENTER)
IH138HEATER BLOWER WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IG36RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 134ENGINE ROOM MAIN WIREI 838INSTRUMENT PANEL WIRE
I 738INSTRUMENT PANEL WIRE

164
J GROUND POINT
FRONT TURN SIGNAL
LIGHT LH AN D FRO NT
PARKING LIG HT LH
FRONT TURN SIGNAL
LIGHT RH AND FRONT
PARKING LIGHT RH
FRONT SIDE MARKER
LIGHT RH
FRONT SIDE MARKER
LIGHT LH
BRAKE FLUID LEVEL
WARNING SW
ST RELAY
E/G MAIN RELAY
FRON T W IPE R M O TO RVSV (
CENTER DIFF.
LOCK NO. 1)
VSV (
CENTER DIFF.
LOCK NO. 2)
E FI M A IN R E LA Y
FAN NO. 2 RELAY
FAN NO. 3 RELAY
ABS RELAY
ABS ACTUATOR
(
GND)
(
GND)
RADIATOR FAN MOTOR
DATA LINK
CONNECTOR 1
OXYGEN SENSOR
(
BANK 1 SENSOR 1)
OXYGEN SENSOR
(
BANK 1 SENSOR 2)
COMBINATION M ETER
HIGH MOUNTED STOP
LIGHT
BACK DOOR OPEN
DETECTION SW
REAR W INDOW
DEFOGGER (
-)
LICENSE PLATE
LIGHT A/C W ATER TEMP. SW
DATA LINK
CONNECTOR 3
NOISE FILTER
(
IG NITION SY STEM)
ENGINE
CONTROL
MODULE
ENGINE CONTROL
MODULE
REAR COMBINATION
LIGHT RH
REAR SIDE M ARKER
LIGHT RH
REAR COMBINATION
LIGHT LH
FUEL PUM P
REAR SIDE M ARKER
LIGHT LHEA110
I 5
EA EBE 1 A 2
26 6
6
W-B W-B
W-B
W-B
W-B W-B W-B W-B W-B W-B
W-B
W-B
W-B
W-B
W-B W-B
W-B
W-B
W-B
W-B W-B W-B W-B
W-B
W-B W-BABS ECU (
4W D M /T) (
4W D M /T)(
4W D M /T)
(
4W D M /T)
EC IG211
A BR
BR
BRBR
BR
BR
BR
IG 27
I 5 BR BR BR
BR BR BR BR (
E1)
(
EO1)
(
E02)
(
E03)
BH BI BJB10 B10
BL21 BK2 2
W-B W-B W-B W-B
W-B
W-BB W-B W-B
W-B W-B W-B W-B
W-B
W-B W-B
W-B
TIO N
NECTOR
JUNC TIO N
CONNECTOR J 2
A
A
A
A
A
A
AA
A
A
A
JUNC
CON J 1
A
A
AA
A
A

165
PERSONAL LIGHT
W IPER AND W ASHER SW
[COMB. SW ]
REAR WINDOW
DEFOGGER SW
COMBINATION M ETER
CRUISE CONTROL ECU
DOOR LO CK CONTROL
SW (
FRONT
PASSENGER' S SIDE)
DOOR KEY LOCK AND
UNLOCK SW (
FR ON T
PASSENGER' S SIDE)
BLOW ER SWTU RN SIG NA L FLA SHER
DATA LINK
CONNECTOR 3
CIGARETTE LIGHTER
O /D M AIN SW
REM OTE CONTROL
MIRROR SW
BUCKLE SW LH
CLOCK
CRUISE CONTROL SW
[COMB. SW ]
UNLOCK W ARNING SW
LIGHT CONTROL SW
[COMB. SW ]
FUEL SENDER (
MAIN)
RADIO AND PLAYER
C O M B IN A TIO N M E TE R SHIFT LOCK ECU
KEY INTERLOCK
SOLENOID
A/C AMPLIFIER
BLOW ER RESISTOR
DOOR LO CK CONTROL
RELAY
POWER W INDOW MASTER
SW
DOOR KEY LOCK AND
UNLOCK SW
(
DRIVER' S SIDE)
RHEOSTATIE 16
A A
A A
A A
A A
A A
IGA AB A
B A
B A
B A
B A
B 8
II1 16
B C
B C
B C A B
A B
A B
ID I 2 IC 116
B 2
IF IEID 110 W-B
W-B
W-BW-B
W-B
W-B
W-B
W-B
W-BW-B
W-B
W-B
W-B
W-B
W-B
W-B
W-B
W-B
W-B
W-B
BR
BR
BR W-
W-
W-
W-
W-
W-B
W-B
W-B
W-B
W-B W -B5
(
A/T)
B J10 , J11
A
JUNCTION CONNECTOR
B J10 , J11
A
JUNCTION CONNECTOR
(
A/
W-B
W-B W-B
W W-B
BR-B
W-B W-B
(
E2)
(
E1) AIRBAG SENSOR
ASSEMBLY
B
B
B
B
B T)W-B -BW
-B
4C3
4C10
4C7
4C8
4C94C 1
4C2
W
1D5
1H16
1H 71I 9

166
J GROUND POINT
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
J 131J10A31
J 231J11B31
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
223R/B NO. 2 (ENGINE COMPARTMENT LEFT)
524R/B NO. 5 (LEFT KICK PANEL)
625R/B NO. 6 (ENGINE COMPARTMENT LEFT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1D
1H20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1I
20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
4C22INSTRUMENT PANEL WIRE AND J/B NO. 4 (RIGHT KICK PANEL)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
EA134ENGINE WIRE AND ENGINE ROOM MAIN WIRE (INSIDE OF R/B NO. 2)
IC136FRONT DOOR LH WIRE AND INSTRUMENT PANEL WIRE (LEFT KICK PANEL)
ID136FLOOR WIRE AND INSTRUMENT PANEL WIRE (LEFT KICK PANEL)
IE136ROOF WIRE AND INSTRUMENT PANEL (LEFT KICK PANEL)
IG238ENGINE WIRE AND INSTRUMENT PANEL WIRE (UNDER THE INSTRUMENT PANEL CENTER)
II138FRONT DOOR RH AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
BK240 (2-DOOR)BACK DOOR NO 1 WIRE AND FLOOR WIRE (BESIDE RIGHT REAR COMB LIGHT)BK242 (4-DOOR)BACK DOOR NO. 1 WIRE AND FLOOR WIRE (BESIDE RIGHT REAR COMB. LIGHT)
BL240 (2-DOOR)REAR WINDOW NO 1 WIRE AND BACK DOOR NO 1 WIRE (BACK DOOR LEFT)BL242 (4-DOOR)REAR WINDOW NO,1 WIRE AND BACK DOOR NO.1 WIRE (BACK DOOR LEFT)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA34RADIATOR RIGHT
EB34RADIATOR LEFT
EC34INTAKE MANIFOLD
ID36LEFT KICK PANEL
IE36INSTRUMENT PANEL BRACE LH
IF36INSTRUMENT PANEL BRACE RH
IG36RIGHT KICK PANEL
BH38 (2-DOOR)UNDER THE CENTER PILLAR LHBH40 (4-DOOR)UNDER THE CENTER PILLAR LH
BI38 (2-DOOR)UNDER THE CENTER PILLAR RHBI40 (4-DOOR)UNDER THE CENTER PILLAR RH
BJ38 (2-DOOR)BACK DOOR LEFTBJ40 (4-DOOR)BACK DOOR LEFT
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 134ENGINE ROOM MAIN WIREB 242 (4-DOOR)FRONT DOOR LH WIRE
I 238INSTRUMENT PANEL WIREB840 (2-DOOR)FRONT DOOR RH WIREI 538ENGINE WIREB 842 (4-DOOR)FRONT DOOR RH WIRE
B 240 (2-DOOR)FRONT DOOR LH WIRE

167