1996 TOYOTA RAV4 Service Repair Manual

136
ELECTRONICALLY CONTROLLED TRANSMISSION

137

138
SHIFT LOCK
IGR-W
W-BL-BGR
B-Y B-YGR
R-W
G-W G-W
GH T LOCK FROM POW ER SOURCE SYSTEM (
SEE PAGE 54)
15A
CIG &
RAD7. 5A
ECU-IG10A
STOP
713 18 612 15
FUSE B F 8
1 2
STOP LI
SW S 5
1I 13
1C 8
2
64L-RL G-WG G-R S 4
SHIFT LOCK
SOLENOID
1 2
W-B
W-B
Y INTERLOCK
LEN OID
1E 4
1H 31E 6
1H 101F 2
1I 11
51 2
KLS+ E AC C IG STP
P1
P
P2
SLS-
SLS+ SHIFT LOCK ECU
2
3
1SHIFT LOCK
CONTROL SW
1
KE
SO K 2
4C 3
4C 1 4C10

139
WHEN THE IGNITION SW IS TURNED TO ACC POSITION THE CURRENT FROM THE CIG & RAD FUSE FLOWS TO TERMINAL 5 OF THE
SHIFT LOCK ECU, IN THE ON POSITION, THE CURRENT FROM THE ECU-IG FUSE FLOWS TO TERMINAL 1 OF THE ECU.
1. SHIFT LOCK MECHANISM
WITH THE IGNITION SW ON, WHEN A SIGNAL THAT THE BRAKE PEDAL IS DEPRESSED (STOP LIGHT SW ON) AND A SIGNAL THAT
THE SHIFT LEVER IS PUT IN Pº POSITION (CONTINUITY BETWEEN P1 AND P OF THE SHIFT LOCK CONTROL SW) IS INPUT TO THE
ECU, THE ECU OPERATES AND CURRENT FLOWS FROM TERMINAL 1 OF THE ECU "TERMINAL SLS+ OF THE SHIFT LOCK
SOLENOID "SOLENOID " TERMINAL SLS- "TERMINAL 4 OF THE ECU "GROUND. THIS CAUSES THE SHIFT LOCK SOLENOID
TO TURN ON (PLATE STOPPER DISENGAGES) AND THE SHIFT LEVER CAN SHIFT INTO POSITION OTHER THAN THE Pº.
2. KEY INTERLOCK MECHANISM
WITH THE IGNITION SW ON OR ACC POSITION, WHEN THE SHIFT LEVER IS PUT IN Pº POSITION (NO CONTINUITY BETWEEN P2
AND P OF SHIFT LOCK CONTROL SW), THE CURRENT FLOWING FROM TERMINAL 6 OF THE ECU "THE KEY INTERLOCK SOLENOID
IS CUT OFF. THIS CAUSES THE KEY INTERLOCK SOLENOID TO TURN OFF (LOCK LEVER DISENGAGES FROM LOCK POSITION) AND
THE IGNITION KEY CAN BE TURNED FROM ACC TO LOCK POSITION.
S 4 SHIFT LOCK ECU
5-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ACC OR ON POSITION
1-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION
4-GROUND : ALWAYS CONTINUITY
2-GROUND : APPROX. 12 VOLTS WITH THE BRAKE PEDAL DEPRESSED
S 5 STOP LIGHT SW
2-1 : CLOSED WITH THE BRAKE PEDAL DEPRESSED
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
F 831S 431
K 231S 531
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1C20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1E20FUSE BLOCK ASSY WIRE AND J/B NO 1 (LOWER FINISH PANEL)1F20FUSE BLOCK ASSY WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1H20INSTRUMENT PANEL WIRE AND J/B NO 1 (LOWER FINISH PANEL)1I20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
4C22INSTRUMENT PANEL WIRE AND J/B NO. 4 (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IG36RIGHT KICK PANEL
F 8
(
SEE PAGE 26)
12K 2
12
X4
56S 4
12S 5
BRO W N
SYSTEM OUTLINE
SERVICE HINTS

140
ABS
M A 1B2B4
C 8 C 11 C 10 C 9 D 25 D 26 D 12 D 13 C 2 C 1 C 5 C 15 C 4 A 2A4B1B5 A 3A 4B1B5B3B7B4B8B2B6A3A2A5A1
B 3 B 14 B 19 B 20
EA EBY-GY-G
L-B
L-R
W-B
W-R W-R
R-W
R- L R-B
W-BL- OL- R G-W BR-R BR-WG-Y
G-B
L- WL- R R-G R- W R-W
R-G
L-R
L-W
G-B
G-Y
BR-W
BR-R
G-W
L-O BR
BATTERY
ABS ACTUATOR ABS RELAYB A 8 , A 9AA A 6 , A 7B
ABS ECU A16 A MR R+(
2W D)
R-(
4W D)SR SFRH SFRR SFLH SFLR SRRH SRRR SRLH SRLR AST MT
FR+ FR- FSS FL+ FL-
B W BRG
R
FR O N T R H FRO NT LHEA15 2 W-RFU
B 6 W-BF 7
PKB
R-
R-B R-B
E 2
E 1I 3
W-B W-B W-BW- B
A 4B2B6B3B7B4B8B1B5A3A2A5A1(
2WD)
(
4WD)
B 4 B 18 B 8 B 7B 9 B 16 B 12 B 5 B 22 B 21 B 11 B 10 B 1(
2W D)
(
4W D)
B , A1 7
C 16 C 14 C 13 D 9
JU
CO J 1C 7 C 6(
2WD)
(
4WD) C , D,
(
4WD)
87
2 60A ABS
6 W
1J 15
1B19
1I 10 B
2 1 2 1
ABS SPEED SENSOR ABS SPEED SENSOR A10 A11 2 1
1
R-B
R-B FROM
CO M BINATION
METER(
SHIELDED)
PARKING BRAKE SW P 2BRAKE FLUID
LEVEL W ARNING SW B 2
A A
W-B
W-B
I 3
NCTION
NNECTOR(
4W D)
(
SHIELDED)
(
4WD)
SIBLE LINK BLOCK
100A ALT

141
A 7 A 1 A 10 A 3
EB D 10 C 12 D 6 D 20
B 13 B2
W-L
L
R-Y R-Y L W-L
R-L R-L
B-Y
R-Y 11 16 22 Y-GFROM POWER SOURCE SYSTEM (
SEE PAGE 54)
DATA LINK
ABS W ARNING LIGHT
[C O M B . M E T E R ]
D 1
TC TS WA IG1
RL+ RL- RSS RR+ RR- GND GNDABS ECU
R-Y
B-Y
1 1
BRY W-B W-BG
R
ABS OR
REA ABS OR
REA A21 A2 2
G
R
Y
BRW-BC 9
D 21
R-W R-W G-W G-W
STP
G-W
W-B
EA1 3 EA14IG219
A 8
B 7
B , C 10
A
R-L
418
IB 1 313
IB2 1
B-Y
IC1 7
B B
D 19
GL1
(
SHIELDED) (
SHIELDED)
1
IC 1 15
W W
D 7
GL2 5
IC1 6
R R
D 5
VGS 3
IC 1 14
G G
D 18
GGND2
IC 1 2 A15
W-B W-B
IF1 5IF16IF11IF13
W-B W-B
W-B
2
D 22
L- Y L-Y
15 A
DOME
BAT 19 18
IB1 10
R-Y
F
I 6A C
B B
JUNCTION CONNECTORB J10 , J11
A
A 2 A 4 A 8 A 9A12JU NC TIO N
CONNECTOR J 5
D
(
M/T)
G-W
G-W
(
2WD)
(
4WD)
D 16 D 15 D 23 D 2 D 1D 24 D11(
2WD)
(
4WD)
I 3
B 3I 3 I 3 (
SHIELDED)
(
SHIELDED)(
SHIELDED)
(
SHIELDED)
(
SHIELDED)(
SHIELDED) (
4WD)(
4W D)
W-B
W-B
(
2WD) (
4W D)
(
2W D)
W-B
(
2WD)
(
A/T)
(
A/T)I 2
I 3
(
4WD)(
4W D) (
2WD)
(
2W D)
(
4W D)
IF 1 4 A16 A B, A1 7 C , D,
(
4WD)
(
4W D)
(
4W D)
(
4W D)
(
4W D)(
4W D)
(
4W D)
(
4W D)
(
4W D)
(
4W D) (
4W D)
23
SHORT PIN
TC TS WA WB10A
GAUGE7. 5A
ECU-IG
CONNECTOR 110A
STOP
GL1 GL2 VGS GGND ABS DECELERATION SENSOR (
4WD) 315 12
FU SE
BLOCK 8
D 1 2
STOP
LIG HT
SW S 5
2
SPEED SENS
R LH2
SPEED SENS
R RH
1A 61E 6
1I 111F 2
1B 81E 8
1I 141I 13

142
ABS
THIS SYSTEM CONTROLS THE RESPECTIVE BRAKE FLUID PRESSURES ACTING ON THE DISC BRAKE CYLINDERS OF THE RIGHT
FRONT WHEEL, LEFT FRONT WHEEL AND REAR WHEELS WHEN THE BRAKES ARE APPLIED IN A PANIC STOP SO THAT THE
WHEELS DO NOT LOCK. THIS RESULTS IN IMPROVED DIRECTIONAL STABILITY AND STEERABILITY DURING PANIC BRAKING.
1. INPUT SIGNALS
(1) SPEED SENSOR SIGNAL
THE SPEED OF THE WHEELS IS DETECTED AND INPUT TO TERMINALS FL+, FR+, RL+ AND RR+ OF THE ABS ECU.
(2) STOP LIGHT SW SIGNAL
A SIGNAL IS INPUT TO TERMINAL STP OF THE ABS ECU WHEN BRAKE PEDAL IS OPERATED.
(3) PARKING BRAKE SW SIGNAL (4 WD)
A SIGNAL IS INPUT TO TERMINAL PKB OF THE ABS ECU WHEN THE PARKING BRAKE IS OPERATED.
(4) DECELERATION SENSOR SIGNAL (4 WD)
LONGITUDINAL ACCELERATION IS DETECTED AND A SIGNAL IS INPUT TO THE ABS ECU.
2. SYSTEM OPERATION
DURING SUDDEN BRAKING THE ABS ECU, WHICH HAS SIGNALS INPUT FROM EACH SENSOR, CONTROLS THE CURRENT FLOWING
TO THE SOLENOID INSIDE THE ACTUATOR AND LETS THE HYDRAULIC PRESSURE ACTING ON EACH WHEEL CYLINDER ESCAPE TO
THE RESERVOIR. THE PUMP INSIDE THE ACTUATOR IS ALSO OPERATING AT THIS TIME AND IT RETURNS THE BRAKE FLUID FROM
THE RESERVOIR TO THE MASTER CYLINDER, THUS PREVENTING LOCKING OF THE VEHICLE WHEELS.
IF THE ECU JUDGES THAT THE HYDRAULIC PRESSURE ACTING ON THE WHEEL CYLINDER IS INSUFFICIENT, THE CURRENT
ACTING ON THE SOLENOID IS CONTROLLED AND THE HYDRAULIC PRESSURE IS INCREASED. HOLDING OF THE HYDRAULIC
PRESSURE IS ALSO CONTROLLED BY THE ECU, BY THE SAME METHOD AS ABOVE. BY REPEATED PRESSURE. REDUCTION,
HOLDING AND INCREASE ARE REPEATED TO MAINTAIN VEHICLE STABILITY AND TO IMPROVE STEERABILITY DURING SUDDEN
BRAKING.
A 8 (A), A 9 (B) ABS RELAY
(A) 1, (B) 2-GROUND : ALWAYS APPROX. 12 VOLTS
(B) 6-GROUND : ALWAYS CONTINUITY
A10, A11 ABS SPEED SENSOR FRONT LH, RH
1-2 : APPROX. 0.92-1.22 KW (20
C, 68
F)
A12, A13 ABS SPEED SENSOR REAR LH, RH
1-2 : APPROX. 0.92-1.22 KW (20
C, 68
F)
A16 (A), (C), A17 (B), (D) ABS ECU
(CONNECT THE ECU CONNECTORS)
(A) 8, (D) 6-GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND
DATA LINK CONNECTOR 1 TS-E1 NOT CONNECTED
(A) 9, (D) 20-GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND
DATA LINK CONNECTOR 1 TC-E1 NOT CONNECTED
(B) 4, (C) 1- GROUND,(B) 1,(C) 2-GROUND :
(B) 5, (C) 9-GROUND,(B) 12,(C) 10-GROUND :
(B) 11, (D) 12-GROUND,(B) 10,(D) 13-GROUND :
(B) 22, (D) 25-GROUND,(B) 21,(D) 26-GROUND :
(B) 2,(D) 11-GROUND :
(B) 13,(D) 24-GROUND :
(A) 2, (D) 10-GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
(A) 12, (D) 21-GROUND : APPROX. 12 VOLTS WITH BRAKE PEDAL DEPRESSED
(D) 22-GROUND : ALWAYS APPROX. 12 VOLTS
A21, A22 ABS SPEED SENSOR REAR LH, RH
1-2 : APPROX. 0.8-1.2 KW (20
C, 68
F)
P 2 PARKING BRAKE SW
1-GROUND : CLOSED WITH PARKING BRAKE LEVER PULLED UP
S 5 STOP LIGHT SW
2-1 : CLOSED WITH BRAKE PEDAL DEPRESSED
ALWAYS CONTINUITYAPPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
AND ABS WARNING LIGHT GOES OFF
SYSTEM OUTLINE
SERVICE HINTS

143
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A 6B28A17B30F 831
A 7A28A17D30J 131
A 8A28A2132 (2-DOOR), 33 (4-DOOR)J 531
A 9B28A2232 (2-DOOR), 33 (4-DOOR)J10A31
A1028B 228J11B31
A1128C 9A30P 231
A1530C10B30S 531
A16A30D 128A16C30F 728
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
223R/B NO. 2 (ENGINE COMPARTMENT LEFT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1A20INSTRUMENT PANEL WIRE AND J/B NO 1 (LOWER FINISH PANEL)1B20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1E20FUSE BLOCK ASSY WIRE AND J/B NO 1 (LOWER FINISH PANEL)1F20FUSE BLOCK ASSY WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1I20INSTRUMENT PANEL WIRE AND J/B NO 1 (LOWER FINISH PANEL)1J20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH 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)
IB136ENGINE ROOM MAIN WIRE AND INSTRUMENT PANEL WIRE (LEFT KICK PANEL)
IB236ENGINE ROOM MAIN WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
IC136FRONT DOOR LH WIRE AND INSTRUMENT PANEL WIRE (LEFT KICK PANEL)
IF138ENGINE ROOM MAIN WIRE AND FLOOR WIRE (LEFT KICK PANEL)
IG238ENGINE WIRE AND INSTRUMENT PANEL WIRE (UNDER THE INSTRUMENT PANEL CENTER)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA34RADIATOR RIGHT
EB34RADIATOR LEFT
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 134ENGINE ROOM MAIN WIREI 638INSTRUMENT PANEL WIRE
E 234ENGINE WIREB340 (2-DOOR)FLOOR WIREI 338ENGINE ROOM MAIN WIREB 342 (4-DOOR)FLOOR WIRE