Page 761 of 3115

CO0IT-01
B04463
Connect
New O-Ring
B03030
Seal Width
2 - 3 mm
New O-Ring
CO-8
- COOLINGWATER PUMP
1769 Author: Date:
2004 LAND CRUISER (RM1071U)
INSTALLATION
1. INSTALL WATER PUMP
(a) Install a new O-ring to the water bypass pipe end.
(b) Apply soapy water to the O-ring.
(c) Connect the water pump to the water bypass pipe end.
(d) Install the water pump and new gasket with the 5 bolts, 2
stud bolts and nut. Uniformly tighten the bolts, stud bolts
and nut in several passes.
Torque:
Bolt: 21 N´m (215 kgf´cm, 15 ft´lbf)
Stud bolt and nut: 18 N´m (185 kgf´cm, 13 ft´lbf)
HINT:
Use bolts 35 mm (1.38 in.) in length.
2. INSTALL WATER INLET AND INLET HOUSING AS-
SEMBLY
(a) Remove any old packing (FIPG) material and be careful
not to drop any oil on the contact surfaces of the water in-
let housing and water pump.
Using a razor blade and gasket scraper, remove all
the old packing (FIPG) material from the gasket sur-
faces and sealing groove.
Thoroughly clean all components to remove all the
loose material.
Using a non-residue solvent, clean both sealing
surfaces.
(b) Apply seal packing to the sealing groove of water inlet
housing as shown in the illustration.
Seal packing: Part No. 08826-00100 or equivalent
Install a nozzle that has been cut to a 2 - 3 mm (0.08
- 0.12 in.) opening.
Parts must be assembled within 5 minutes of ap-
plication. Otherwise the material must be removed
and reapplied.
Immediately remove nozzle from the tube and rein-
stall cap.
(c) Install a new O-ring to the water inlet housing.
(d) Apply soapy water on the O-ring.
(e) Attach the water inlet housing end to the front water by-
pass joint hole.
Page 762 of 3115
B04460
AB
- COOLINGWATER PUMP
CO-9
1770 Author: Date:
2004 LAND CRUISER (RM1071U)
(f) Install the water inlet and housing assembly with the 2
bolts. Alternately tighten the bolts.
Torque: 18 N´m (185 kgf´cm, 13 ft´lbf)
HINT:
Each bolt length is indicated in the illustration.
Bolt length:
76 mm (3.00 in.) for A
22 mm (0.87 in.) for B
3. INSTALL NO.2 IDLER PULLEY (See page EM-22)
4. INSTALL TIMING BELT (See page EM-22)
5. FILL WITH ENGINE COOLANT
6. START ENGINE AND CHECK FOR ENGINE COOLANT
LEAKS
7. RECHECK ENGINE COOLANT LEVEL
Page 763 of 3115
CO0IR-01
B04460
B04461
CO-6
- COOLINGWATER PUMP
1767 Author: Date:
2004 LAND CRUISER (RM1071U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. REMOVE TIMING BELT (See page EM-15)
3. REMOVE NO.2 IDLER PULLEY (See page EM-15)
4. REMOVE WATER INLET AND INLET HOUSING AS-
SEMBLY
(a) Disconnect the water bypass hose from the water inlet
housing.
(b) Remove the 2 bolts holding the water inlet housing to the
water pump.
(c) Disconnect the water inlet housing from the front water
bypass joint, and remove the water inlet and inlet housing
assembly.
(d) Remove the O-ring from the water inlet housing.
5. REMOVE WATER PUMP
(a) Remove the 5 bolts, 2 stud bolts, nut, water pump and
gasket.
(b) Remove the O-ring from the water bypass pipe.
Page 764 of 3115
F17763
EXI
WT A43
A43 IX1
F15Cowl Side J/B RH
Cowl Side J/B RH Cowl Side J/B RH
Cowl Side J/B LHI18
Ignition SW
Engine Room J/BCombination MeterABS & BA & TRAC
& VSC ECU
SB
D4
Detection SW
(Center Diff. Lock)
2
W-B
P-B
SB
SB
SB MET1
2
47
3E3Q
56 3
3Q
3B
3Q3B J4
J/C
B-R B-R
A
AP-B
L-R
W-R AM2 IG2
76
41 10
2E 2A
1
9
1C1B
2 B-G
ECFL Block
Battery MAIN
EC BR W-R8IX1
VSC OFF
17
C13 C12 C151
103
7
14 26
AM2 DI-624
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
817 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC Always ON Malfunction in ECU
VSC TRAC Warning Light Circuit
CIRCUIT DESCRIPTION
Always ONThere is a malfunction in the ECU internal circuit.
Power source circuit
Skid control ECU
VSC TRAC warning light circuit
HINT:
If the fail safe function is activated in the VSC system, ºVSC OFFº indicator light lights up.
WIRING DIAGRAM
DICA4-01
Page 765 of 3115
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-625
818 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
1 Check that the ECU connectors are securely connected to the ECU.
NO Connect the connector to the ECU.
YES
2 Is DTC output for VSC?
Check the DTC on page DI-505.
YES Repair circuit indicated by the output code.
NO
3 Does VSC TRAC warning light go off?
YES Check for open or short circuit in harness and
connector between ECU-IG fuse and ECU (See
page IN-36).
NO
4 Check battery positive voltage.
PREPARATION:
Start the engine.
CHECK:
Check the battery positive voltage.
OK:
Voltage: 10 to 16 V
NG Check and repair the charging system.
OK
Page 766 of 3115

DI-626- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
819 Author: Date:
2004 LAND CRUISER (RM1071U)
5 Check operation of the VSC TRAC warning light.
In case of using the hand-held tester:
PREPARATION:
(a) Connect the hand-held tester to the DLC3.
(b) Turn the ignition switch ON and push the hand-held tester main switch ON.
(c) Select the ACTIVE TEST mode on the hand-held tester.
CHECK:
Check that ºONº and ºOFFº of the VSC TRAC warning light can be shown on the combination meter on the
hand-held tester.
In case of not using the hand-held tester:
PREPARATION:
(a) Turn the ignition switch OFF.
(b) Disconnect the connector from the skid control ECU.
(c) Turn the ignition switch ON.
CHECK:
Check that the VSC TRAC warning light goes off.
NG Check and replace combination meter (See
page BE-2).
OK
6Check for short circuit in harness and connector between combination meter and skid
control ECU, combination meter and DLC1 (See page IN-36).
NG Repair or replace harness or connector.
OK
Check and replace skid control ECU.
Page 767 of 3115
F17718F18533
ABS & BA & TRAC
& VSC ECU
Engine Room J/B Combination Meter
Cowl Side J/B RH
Cowl Side J/B LH
I18
Ignition SW
Cowl Side J/B RHWA 1
A42 4
3A 5
3Q 12
C12
41
2E10
2A
1B91
1C AM2
W-RB-R
C12
C15
ECSB
BR8
IX1 3Q SB7MET
4
3EB-R
B-G
FL Block SB R-L
W-R
76AM2 IG2
J4
J/C
AA
2
F15Battery 1 10
MAIN ABS
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-627
820 Author: Date:
2004 LAND CRUISER (RM1071U)
ABS Warning Light Circuit
CIRCUIT DESCRIPTION
If the ECU detects trouble, it lights the ABS warning light while at the same time prohibiting ABS control. At
this time, the ECU records a DTC in memory.
Connect terminals Tc and E
1 of the DLC1 or Tc and CG of DLC3 to make the ABS warning light blink and
output the DTC.
WIRING DIAGRAM
DICA5-02
Page 768 of 3115

DI-628- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
821 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
HINT:
Troubleshoot in accordance with the table below for each trouble symptom.
ABS warning light does not light up*1
ABS warning light remains on*2
*1: Start the inspection from step 1 in case of using the hand-held tester and start from step 2 in case of not
using the hand-held tester.
*
2: After inspection with step 4, start the inspection from step 5 in case of using the hand-held tester and
start from step 6 in case of not using hand-held tester.
1 Check operation of the ABS warning light.
PREPARATION:
(a) Connect the hand-held tester to the DLC3.
(b) Turn the ignition switch ON and push the hand-held tester main switch ON.
(c) Select the ACTIVE TEST mode on the hand-held tester.
CHECK:
Check that ºONº and ºOFFº of the ABS warning light can be shown on the combination meter on the hand-
held tester.
OK Check and replace skid control ECU.
NG
2 Does the warning lights other than ABS warning light come on?
YES Repair ABS warning light bulb or combination
meter assembly.
NO