1996 TOYOTA LAND CRUISER relay

BR1DI−01
−
BRAKE ABS ACTUATOR
BR−53
1035
Author: Date:
1996 LAND CRUISER (RM451U)
ABS ACTUATOR
ON−VEHICLE INSPECTION
1. INSPECT BATTERY POSITIVE VOLTAGE
Battery positive voltage: 10 − 14 V
2. DISCONNECT CONNECTORS
(a) Disconnect the connector from the actuator.
(b) Remove the control relay from the actuator bracket.
(c) Disconnect the 2 connectors from the control relay.
3. CONNECT ACTUATOR CHECKER (SST) TO ACTUA-
TOR
(a) Connect the actuator checker (SST) to the actuator, con-
trol relay and body side wire harness through the sub −
wire harness C (SST) and E (SST), as shown.
SST 09990−00150, 09990 −00200, 09990−00210
(b) Connect the red cable of the checker to the battery posi- tive (+) terminal and black cable to the negative ( −) termi-
nal. Connect the black cable of the sub −wire harness to
the battery negative (−) terminal or body ground.
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BR1334
−
BRAKE ABS ACTUATOR
BR−55
1037
Author: Date:
1996 LAND CRUISER (RM451U)
7. DISCONNECT ACTUATOR CHECKER (SST) FROM
ACTUATOR
Disconnect the actuator checker (SST) and sub−wire harness
(SST) from the actuator, control relay and body side wire har-
ness.
SST 09990−00150, 09990 −00200, 09990−00210
8. CONNECT CONNECTORS
(a) Connect the 2 connectors to the control relay.
(b) Connect the connector to the actuator.
(c) Install the control relay to the actuator bracket.
9. CLEAR DTC (See page DI−190 )
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BR1DK−01
−
BRAKE ABS ACTUATOR
BR−57
1996 LAND CRUISER (RM451U)
REMOVAL
1. REMOVE CONTROL RELAY FROM ACTUATOR
BRACKET
Torque: 13 N·m (130 kgf·cm, 9 ft·lbf)
2. DISCONNECT BRAKE LINES
Using SST, disconnect the brake lines from the ABS actuator. SST 09023−00100
Torque: 15 N·m (155 kgf·cm, 11 ft·lbf)
3. REMOVE ABS ACTUATOR ASSEMBLY
(a) Disconnect the 2 connectors from the actuator.
(b) Remove the 4 bolts and actuator assembly. Torque: 19 N·m (195 kgf·cm, 14 ft·lbf)
4. REMOVE ABS ACTUATOR
(a) Remove the 3 nuts and actuator from the actuator brack-
et.
Torque: 5.4 N·m (55 kgf·cm, 48 in.·lbf)
(b) Remove the 3 holders and cushions from the ABS actua-
tor.
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BR1NS−01
BR−58
−
BRAKE ABS ACTUATOR
1996 LAND CRUISER (RM451U)
INSPECTION
1. INSPECT CONTINUITY OF MOTOR RELAY CIRCUIT
(a) Check there is continuity between terminals 9 and 10.
(b) Check there is no continuity between terminals 7 and 8.
If continuity is not as specified, replace the relay.
2. INSPECT OPERATION OF MOTOR RELAY CIRCUIT
(a) Connect the positive (+) lead from the battery to terminal 10 and negative ( −) lead to terminal 9.
(b) Check there is continuity between terminals 7 and 8.
If operation is not as specified, replace the relay.
3. INSPECT CONTINUITY OD SOLENOID RELAY CIR- CUIT
(a) Check there is continuity between terminals 1 and 9.
(b) Check there is no continuity between terminals 2 and 5.
(c) Connect the positive lead from the ohmmeter to terminal 5 and connect negative lead to terminal 4.
(d) Check there is continuity between terminals.
(e) Connect the 2 leads in reverse, and check that there is no
continuity between terminals.
If continuity is not as specified, replace the relay.
HINT:
For the different type ohmmeter, there is no continuity for step
(d), and there is continuity for step (e).
4. INSPECT OPERATION OF SOLENOID RELAY CIR- CUIT
(a) Connect the positive (+) lead from the battery to terminal
1 and negative ( −) lead to terminal 9.
(b) Check there is continuity between terminal 2 and 6.
(c) Check there is no continuity between terminals 2 and 6.
If operation is not as specified, replace the relay.
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P22419
WR−Y
GECM
Y−R R
R
BR
Battery Fusible Link
EFI
R/B No.2
EFI Main
Relay
Y−R
FL MAIN
BR
1
Mass Air Flow
Meter
2
2 2
2 2
2
1 1
1
F8 2
4
3 E7
E5
E5 VGMRLY
2
23
7
5 16B+
E1
EB
E21
EB1 EA2
−
DIAGNOSTICS ENGINE
DI−21
1996 LAND CRUISER (RM451U)
WIRING DIAGRAM
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A00201
ON
BE6653
P24652
DI−22
−
DIAGNOSTICS ENGINE
1996 LAND CRUISER (RM451U)
INSPECTION PROCEDURE
1 Connect the OBD II scan tool or TOYOTA hand −held tester, and read value of
mass air flow rate.
PREPARATION:
(a) Remove the fuse cover on the instrument panel.
(b) Connect the OBD II scan tool or TOYOTA hand−held tester to the DLC3.
(c) Turn ignition switch ON and OBD II scan tool or TOYOTA hand−held tester main switch ON.
(d) Start the engine.
CHECK:
Read mass air flow rate on the OBD II scan tool or TOYOTA hand−held tester.
RESULT:
Type IType II
Mass air flow rate (gm/sec.)Approx. 0 gm/sec.439.0 gm/sec. or more
Type I Go to step 2.
Type II Go to step 5.
2 Check voltage of mass air flow meter power source.
PREPARATION:
(a) Disconnect the mass air flow meter connector.
(b) Turn ignition switch ON.
CHECK:
Measure voltage between terminal 1 of mass air flow meter con-
nector and body ground.
OK:
Voltage: 9 − 14 V
NG Check for open in harness and connector between EFI main relay (Marking: EFI) and
mass air flow meter (See page IN−28 ).
OK
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P22423
2
1 3
4
13
24
O
2
2
22 2
2
EB1
EA2
EFI
BR
R−Y
Y−RR
Y−R
1 7
R 3
5
1
E7
E5
E5
EFI Main
Relay
From BatteryEB
R/B No.2
14
32
BR−B
BR−B
BR−B WL
GR E6
E4E6
MRLY
B+
HT1
OX2
E1
HT2 E03
OX1
Heated Oxygen Sensor
(bank 1 sensor 1)
Heated Oxygen Sensor
(bank 1 sensor 2)
ECM
Y−R
Y−R
EC
32
14
E1E03
E1
7
−
DIAGNOSTICS ENGINE
DI−41
1996 LAND CRUISER (RM451U)
HINT:
After confirming DTC P0125 use the OBD II scan tool or TO YOTA handheld tester to confirm voltage output
of heated oxygen sensor (bank 1 sensor 1) from CURRENT DATA.
If voltage output of heated oxygen sensor (bank 1 sensor 1) is 0 V, heated oxygen sensor (bank 1 sensor
1) circuit may be open or short.
WIRING DIAGRAM
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DI−48
−
DIAGNOSTICS ENGINE
1996 LAND CRUISER (RM451U)
2 Check resistance of heated oxygen sensor heater (See page SF−64).
NG Replace heated oxygen sensor.
OK
Check and repair harness or connector between EFI main relay (Marking: EFI) \
and heated oxygen
sensor (bank 1 sensor 1, 2) and ECM (See page IN−28).
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