ABS TOYOTA CAMRY 1994 XV10 / 4.G Wiring Diagrams Owner's Manual

99
AB
1 2
1 2
1 2 E20
E20
E18 E17 E171234
32 112
C 1A 5 A 18 A 17 A 4
B 2C
4B3B13 B9 B 16 IP116
PIM THW THA THG E2E21 NE NE± G± G+
(
SHIELDED) B B±O W±R W± R
B±O
B±O
R
BRBR BR BR BR
B±Y
BR
BR
BR
BR
BRGR L±BLGW±R W±R
R
L
B
Y
B±O
D6
I3
D2
E11 , E12 , E14 +B1W±R
NE+ NE± G± G+
VC E2PIM
M1
E4
I10
E1
MANIFOLD ABSOLUTE
PRESSURE SENSOR
(
VACUUM SENSOR)
ENGINE COOLANT
TEMP. SENSOR
(
EFI WATER TEMP.
SENSOR)
INTAKE AIR
TEM P. SE NSOR
(
IN±AIR TEMP.
SENSOR)
EGR GAS TEMP.
SENSOR
ENGINE CONTROL MODULE(
ENGINE ECU)
B
DIODE
(
FOR IDLE±UP)
IGNITION COIL
DISTRIBUTOR
I18 E18
BR
BRBR 2 3
C 12
B±R G G
ELS FRO E 64)
1
P
E19
A 3A22
W±R
WB±R
W±R
BB
B
W± R
B± R
12 534
COIL± +B
IG F IGT
IG F IGTIGNITER I2
TO
TACHOMETER
[COMB. METER]
W±R
(
*
2)B±O
B±O
NE+
1D 1415A
TAIL
1A 1010A
MIR±HTR
3C 53D 5
M POWER SOURCE SYSTEM(
SEE PAG

204
ELECTRONIC CONTROLLED TRANSMISSION AND A/T INDICATOR (5S±FE)
A
C,B
A2D 2
2B 22C32D4
IP 1 11 IP312 IP 1 18
I23
A 1A3B1 A 12
BA 13
B1A 1
BATTA 4
B/KA 22
NSWB 12
IDLB 1
VCB 11
VTAB 9
E2
C 15S2
C 2S1
C 1SL
C 14E1
C 13E01
C 26E02
EBEC EDE21 2431
I18
E18 I18BRBR
BR
B±O B±O
G±W
R
BR
R
BR BRR B±W G±W G±WW±B
B±O
W±G B±O B±O
B±O
W±L
V
L±Y P±L
W±B
W±BBR W±B
L
B
FROM POWER SOURCE SYSTEM(
SEE PAGE 64)
15A
EFI
EFI MAIN
RE LA YTHROTTLE POSITION SENSOR
ELECTRONIC CONTROLLED
TRANSMISSION SOLENOID
FROM IGNITION
SW º ST1º
IP 316
BR
E2 ,E3
E7 E8 ,E10T1
A
B
WB
B 16E17
25 13
A 9
SPEED
IP3 11 IP314 5124
G±B
G
23
1 VEHICLE SPEED
SENSOR
(
SPEED SENSOR)
LGP
R±L SP1
COMBINATION
METER
V5C8V±Y V±Y
BR BR FROM MANIFOLD ABSOLUTE
PRESSURE SENSOR
(
V ACUUM S ENS OR) TO MANIFOLD ABSOLUTE
PRESSURE SENSOR
(
V ACUUM S ENS OR)
BR
BR
STOP LIGHT SW
G±R
G±W
2 1
S10
B
1 A 2
B 2B1
NOISE FILTER
(
FOR S TOP L IGHT) N2 ,N3
A
G± W
G±R NO. 3
(
LOCK±UP) NO. 1 NO. 2
E NGINE CONTROL MODULE(
ENGINE AND ELECTRONIC CONTROLLED TRANSMISSION ECU)
(
*3)
1A 15
3B 43C 191M 6
1D 97. 5A
IGN1M 315A
STOP
3D22
3D10

209
ABS (ANTI±LOCK BRAKE SYSTEM) (TMC MADE)

210
ABS (ANTI±LOCK BRAKE SYSTEM) (TMC MADE)
A B
A
E4
E6
I25E4 EC1 7EC1 3
IR2 6IR27IR25M
2 1 A 23 A24 A11 A1A13 A26 A14 A18 A6 B 4A1A4A3A6A2A5B1 A 5 A 1 B 4 B 2B3
A 2A15 A22 A10 A3A16B 3
B 1A2A4
A6
A 9
2 1
EAR±L
FR+ FR± FS S FL+ FL ± GND E
W±L W±L W±L
W±LG± W W±R
GR±L
GR±R
GR±G
L±W
G±W
L±R
G±R
R
R±W
W±R
W±BW±B
W±B W±B
W±B
BR BR R G W±B
B
W
W
W±B1FUSE BOX
60A ABS
ABS RELAY
ABS ACTUATOR
R±L
R± SR MR SFR SFL SRR SRL AST MT
ABS SPEED SENSOR
FRONT LHABS SPEED SENSOR
FRONT RH
W±B
(
SHIELDED)(
SHIELDED) ABS ECU FROM POWER SOURCE SYSTEM(
SEE PAGE 64)
A1 3 , A 1 4 BA A6 , A7
B A4 , A5
A8 A9 F1 8
W±R
W±B
G
R

211
*
2 : CANADA *1 : USA
A
A
A
2G
II1 4 IR2 2IR2 1IR24
IS1 6 IS1 5 IS1 4 IJ1 6 IJ1 19 IJ1 12
1 2 1 2I21 I21 B 1B9B7B
16 B8B14A 25 A 12 B 6 B 13 A 5 B 4A 6
B
4
11 IP3 8IP33
B 15
RL± RL+ RSS RR± RR+ PKB
BR ABS TC TC TS WA R±LFROM POWER SOURCE SYSTEM(
SEE PAGE 64)
R±L
B±R
L±Y B±R
L±Y B±R
L±Y G±W G±WG±BR±G LG±RR±L
LG±R
G±BG±BY±B
LG±R LG±R
R±G
R±YY±B G
R R G
BR
YBR
Y
R±W R±W R±WR±W
11 16 22 4 1423
D/G TC TS W STP IG1 BATWB
DATA LINK
CONNECTOR 2
(
TDCL)
DATA LINK CONNECTOR 1
(
CHECK CONNECTOR)
C C
ABS WARNING LIGHT
[COMB. METER]
ABS SPEED SENSOR
REAR LH(
SHIELDED)
(
SHIELDED)
ABS SPEED SENSOR
REAR RH
PARKING BRAKE
SW
PARKING BRAKE
SW(
1MZ±FE)
ABS ECU
JUNCTION
CONNECTOR
R±LC CJ1
JUNCTION
CONNECTORJ3
C9 ,C10
B
A13 , A14
B
BR BR
BR
A19 A20
P2
P3(
5S±FE)
D1
D3
SHORT PIN
STOP LIGHT SW
G±R
G±W
2 1
S10
B
1 A 2
B 2B1
NOISE FILTER
(
FOR STOP LIGHT) N2 , N3
A
G±W
G±R
IP1 3
(
*1)
(
*
1) B
(
*2)
W
(
*2)
(
SHIELDED)
(
SHIELDED)
1A 151M 6
1B 61M31A73 10A
GAUGE15A
ECU±B 15A
ECU±IG 15A
STOP
3C 73C 19
3D 17
3C 173D 16
3C 133C 33C12
3C 15 3B23B 11 3C 16
3B 3
3D 8 3C 8

212
ABS (ANTI±LOCK BRAKE SYSTEM) (TMC MADE)
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 BRAKEING.
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
A SIGNAL IS INPUT TO TERMINAL PKB OF THE ABS ECU WHEN THE PARKING BRAKE IS OPERATED.
2. SYSTEM OPERATION
DURING SUDDEN BRAKEING 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 REPLATED TO MAINTAIN VEHICLE STABILITY AND TO IMPROVE STEERBILITY DURING SUDDEN
BRAKING.
A 4(A), A 5(B) ABS ACTUATOR
(A)1, (A)3, (A)4, (A)6 ± (A)2 : APPROX. 6 W
(A)2±GROUND : APPROX. 5 W
A 6(B), A 7(A) ABS RELAY
(A)1±(B) 3 : 60 W±100 W
(A)4±(B) 3 : 60 W±100 W
(A)1, (B) 2±GROUND : APPROX. 12 VOLTS
(A)6±GROUND : APPROX. 12 VOLTS
A 8, A 9 ABS SPEED SENSOR FRONT LH, RH
1±2 : 0.8 K±1.3 KW
A19, A20 ABS SPEED SENSOR REAR LH, RH
1±2 : 1.1 K±1.5 KW
A13(A), A14(B) ABS ECU
(CONNECT THE ECU CONNECTORS)
(A) 5±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND DATA LINK CONNECTOR 1 (CHECK CONNECTOR)
TS±EI NOT CONNECTED
(B)15±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND DATA LINK CONNECTOR 1 (CHECK CONNECTOR)
TS±EI NOT CONNECTED
(A) 1±GROUND, (A) 13±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND ABS WARNING LIGHT GOES OFF
(A)14±GROUND, (A) 1±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND ABS WARNING LIGHT GOES OFF
(A)26±GROUND, (A) 18±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND ABS WARNING LIGHT GOES OFF
(A) 2±GROUND : ALWAYS CONTINUITY
(A)15±GROUND : ALWAYS CONTINUITY
(A)12±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
(B) 6±GROUND : APPROX. 12 VOLTS WITH BRAKE PEDAL DEPRESSED
(A)25±GROUND : ALWAYS APPROX. 12 VOLTS
SYSTEM OUTLINE
SERVICE HINTS

214
ABS (ANTI±LOCK BRAKE SYSTEM) (TMM MADE)
EC1 7
IR2 7IR26IR2 1 IR1 19
B 1A9B 2
A 11 A5A13 A7
IJ1 6IR2 5
I21 I14
1 21 2 B 2B1 A 2A1
2 1
FR+ FR± FL+ FL± +BS STPIG
W
B
R
GR
G
W±B W± B W±BB±R G±WW±L
G±W
G±R
B±R W± L
G±W
G±W
G± R
B±R
G±W
(
SHIELDED) (
SHIELDED)
(
SHIELDED)B A4 ,A5A
ABS ACTUATOR AND ECU FROM POWER SOURCE SYSTEM(
SEE PAGE 64)
B N2 ,N3A
NOISE FILTER
(
FO R STO P L I G HT)
STOP LIGHT SW S10
W± B
A9 A8
ABS SPEED SENSOR
FRONT RHABS SPEED SENSOR
FRONT LH FUS E BO X F18
60A ABS
11M 31A7 15A
STOP15A
ECU±IG
1A 151M 6
3C 19
3C 7
3C 153C 16

215
C C IP3 8IP13EC13IP33
IR1 20 IR23IR28
IJ 1 19 IJ112 IS14IS16IS15 IR1 13A 12 A15 B3A1
A 4A2A6A14 B4 I13
B 4A 6
2 12 1
EA C C
RL+ RL± RR+ RR± GNDTC TS TC ABS
IR2 2IR112 IR24 11 16 23 22WA WB
I13 G±B G±B
TC TS LP W
R
G
W
B R
G R
G
W
BW
B
W±B W±B
W±BW±B
LG±R
R±G
G±B G±BLG±R
R±G
G±WLG±R
G±B G± B
R±L R±LY±B Y±B
R±G
G±W
G±B LG±R
4 14
A1 9A20 J3D3
J1 DATA LINK
CONNECTOR 2
(
CHE CK
CONNECTOR)
JUNCTION
CONNE CTORJUNCTION
CONNECTOR SHORT PIN
ABS SPEED SENSOR
RE AR RHABS SPEED SENSOR
REAR LH DATA LINK CONNE CTOR 1
(
CHECK CONNECTOR) D1
(
SHIELDED) (
SHIELDED) (
SHIELDED)(
SHIELDED)
(
SHIELDED)
(
SHIELDED)B C9 ,C10
A
B A4 ,A5AABS WARNING
LIGHT
(
COMB. LIGHT)
ABS ACTUATOR AND ECUFROM POWER SOURCE SYSTEM(
SEE PAGE 64)
3C 17 3D 17 3D163C 13 3C12 3C 3
10A
GAUGE
1B 6

216
ABS (ANTI±LOCK BRAKE SYSTEM) (TMM MADE)
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A 4A28 (1MZ±FE), 30 (5S±FE)C 9A32J 333
A 5B28 (1MZ±FE), 30 (5S±FE)C10B32N 2A33
A 828 (1MZ±FE), 30 (5S±FE)D 128 (1MZ±FE), 30 (5S±FE)N 3B33
A 928 (1MZ±FE), 30 (5S±FE)D 332S1033
A1934 (S/D), 35 (C/P), 36 (W/G)F1828 (1MZ±FE), 30 (5S±FE)
A2034 (S/D), 35 (C/P), 36 (W/G)J 133
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1A
1B20COWL WIRE AND J/B NO. 1 (INSTRUMENT PANEL LEFT)
1M
20COWL WIRE AND J/B NO. 1 (INSTRUMENT PANEL LEFT)
3C24COWL WIRE AND J/B NO 3 (BEHIND COMBINATION METER)3D24COWL WIRE AND J/B NO. 3 (BEHIND COMBINATION METER)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
EC138 (1MZ±FE)ENGINE WIRE AND ENGINE ROOM MAIN WIREEC140 (5S±FE)ENGINE WIRE AND ENGINE ROOM MAIN WIRE
IJ142FLOOR NO. 1 WIRE AND COWL WIRE
IP144ENGINE WIRE AND COWL WIREIP344ENGINE WIRE AND COWL WIRE
IR144ENGINE ROOM MAIN WIRE AND COWL WIREIR244ENGINE ROOM MAIN WIRE AND COWL WIRE
IS144FLOOR NO. 2 WIRE AND COWL WIRE
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA38 (1MZ±FE)FRONT RIGHT FENDEREA40 (5S±FE)FRONT RIGHT FENDER
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I1344COWL WIREI2144COWL WIRE
I1444COWL WIRE

218
ABS (ANTI±LOCK BRAKE SYSTEM) (TMM MADE)
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 BRAKEING.
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.
2. SYSTEM OPERATION
DURING SUDDEN BRAKEING 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 REPLATED TO MAINTAIN VEHICLE STABILITY AND TO IMPROVE STEERBILITY DURING SUDDEN
BRAKING.
A 8, A 9 ABS SPEED SENSOR FRONT LH, RH
1±2 : 0.8 K±1.3 KW
A19, A20 ABS SPEED SENSOR REAR LH, RH
1±2 : 1.1 K±1.5 KW
A 4(A), A 5(B) ABS ECU
(CONNECT THE ECU CONNECTORS)
(A)12±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND DATA LINK CONNECTOR 1 (CHECK CONNECTOR)
TS±EI NOT CONNECTED
(A)15±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND DATA LINK CONNECTOR 1 (CHECK CONNECTOR)
TS±EI NOT CONNECTED
(B) 4±GROUND : ALWAYS CONTINUITY
(B) 2±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
(A) 9±GROUND : APPROX. 12 VOLTS WITH BRAKE PEDAL DEPRESSED
(B) 1±GROUND : ALWAYS APPROX. 12 VOLTS
SYSTEM OUTLINE
SERVICE HINTS