Page 1473 of 3115
F05527
S5V1 SG1 S5V2SG2
ON
(+) (-)(+) (-)
DI-680- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
873 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
1 Check voltage between terminals S5V1 and SG1, S5V2 and SG2 of ECU connec-
tor.
PREPARATION:
Remove ECU with connectors still connected.
CHECK:
Measure voltage between terminals S5V1 and SG1, S5V2 and
SG2 of ECU connector.
OK:
Voltage: 4.5 - 5.5 V
NG Go to step 3.
OK
2 Check for open circuit in harness and connector between terminals S5V1 and
SG1, S5V2 and SG2 of ECU connector.
NG Repair or replace harness or connector.
OK
Proceed to next circuit inspection shown on
the problem symptoms table
(See page DI-663).
3 Check for short circuit in harness between terminals S5V1 and SG1, S5V2 and
SG2 of ECU connector.
NG Repair or replace harness or connector.
OK
Check and replace tilt and telescopic ECU
(See page IN-36).
Page 1474 of 3115
F17312
T4
Telescopic Motor
Tilt & Telescopic ECU
S5V2
SIN2
SG2
A2
B2
F/B2
COM2S5V2
SIN2
SG2
A2
B2
F/B2
COM2 T8
T8
T8
T8
T8
T8
T8 3
8
7
1
4
6
5B-W
B-R
B-Y
W
G
R
B12
11
10
1
8
2
9
Cowl Side J/B RH42
J1
Junction
Connector 3D
II(Shielded)
A
A W-B DI-684
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
877 Author: Date:
2004 LAND CRUISER (RM1071U)
Telescopic Motor Circuit
CIRCUIT DESCRIPTION
The ECU provides both +B and ground for the telescopic motor.
Reversing polarity of the applied voltage reverses the motor.
WIRING DIAGRAM
DI23N-17
Page 1475 of 3115

F03704
ON
TOYOTA
Hand-held
TesterExtend
Contract
F05991
Telescopic Motor
Tilt Motor
Connector Telescopic
Motor
Connector
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-685
878 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
In case of using TOYOTA hand-held tester, start inspection from step 1.
In case of not using TOYOTA hand-held tester, start inspection from step 2.
1 Check telescopic motor operation using TOYOTA hand-held tester.
PREPARATION:
(a) Connect the TOYOTA hand-held tester to the DLC3.
(b) Turn ignition switch ON and push the TOYOTA hand-held
tester main switch ON.
(c) Select the ACTIVE TEST mode on the TOYOTA hand-
held tester.
CHECK:
Check that the steering column length become short (long) and
confirm that telescopic position value change when the AC-
TIVE TEST carried out.
OK:
Steering column length must be short (long).
Telescopic position value must be changed.
OK Proceed to next circuit inspection shown on the
problem symptoms table (See page DI-663).
NG
2 Check telescopic motor.
PREPARATION:
(a) Disconnect telescopic motor connector and tilt motor con-
nector.
(b) Remove telescopic motor (See page SR-30).
CHECK:
Connect tilt motor connector to telescopic motor. Then confirm
that telescopic motor moved when operating the manual
switch.
NG Replace telescopic motor.
OK
Page 1476 of 3115
DI-686- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
879 Author: Date:
2004 LAND CRUISER (RM1071U)
3 Check for open or short circuit in harness and connector between tilt and tele-
scopic ECU and telescopic motor (See page IN-36).
NG Repair or replace harness or connector.
OK
Proceed to next circuit inspection shown on
the problem symptoms table
(See page DI-663).
Page 1477 of 3115
F17327
T9 Tilt MotorTilt & Telescopic ECU
S5V1
SIN1
SG1
A1
B1
F/B1
COM1 T8
T8
T8
T8
T8
T8
T813
5
14
7
16
6
15 G-W
G-R
G-Y
P
V
B
G II5
12 11 10
16
17
15
18 II5
II5
II3
II3
II3
II3 G-W
G-R
G-Y
P
L
B
Y S5V1
SIN1
SG1
A1
B1
F/B1
COM13
8
7
1
4
6
5
Cowl Side J/B RH42
J1
Junction
Connector (Shielded)
3D
II (Shielded)
(Shielded)
A
A
W-B
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-681
874 Author: Date:
2004 LAND CRUISER (RM1071U)
Tilt Motor Circuit
CIRCUIT DESCRIPTION
The ECU provided both +B and ground for the tilt motor.
Reversing polarity of the applied voltage reverses the motor.
WIRING DIAGRAM
DI23M-18
Page 1478 of 3115

F03702
ON
Up
Down TOYOTA
Hand-held
Tester
F05991
Tilt MotorTilt Motor
Connector
Telescopic Motor
Connector
DI-682- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
875 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
In case of using TOYOTA hand-held tester, start inspection from step 1.
In case of not using TOYOTA hand-held tester, start inspection from step 2.
1 Check tilt motor operation using TOYOTA hand-held tester.
PREPARATION:
(a) Connect the TOYOTA hand-held tester to the DLC3.
(b) Turn ignition switch ON and push the TOYOTA hand-held
tester main switch ON.
(c) Select the ACTIVE TEST mode on the TOYOTA hand-
held tester.
CHECK:
Check that the steering wheel tilt up (down) and confirm that tilt
position value change when the ACTIVE TEST carried out.
OK:
Steering wheel must be moved upward (downward).
Tilt position value must be changed.
OK Proceed to next circuit inspection shown on the
problem symptoms table (See page DI-663).
NG
2 Check tilt motor.
PREPARATION:
(a) Disconnect tilt motor connector and telescopic motor con-
nector.
(b) Remove tilt motor (See page SR-30).
CHECK:
Connect telescopic motor connector to tilt motor. Then confirm
that tilt motor moved when operating the manual switch.
NG Replace tilt motor.
OK
Page 1479 of 3115
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-683
876 Author: Date:
2004 LAND CRUISER (RM1071U)
3 Check for open or short circuit in harness and connector between tilt and tele-
scopic ECU and tilt motor (See page IN-36).
NG Repair or replace harness or connector.
OK
Proceed to next circuit inspection shown on
the problem symptoms table
(See page DI-663).
Page 1480 of 3115

F17326
C17
Tilt & Telescopic Unit (Combination Switch)Tilt & Telescopic ECU
MSW V (1.2 kW)2
5 T7VC 16
8
V-YT7
Telescopic
Short Tilt Down Telescopic
Long Tilt Up (430 W) (200 W) (160 W)
V
V-YII5
II58
9 VC
MSW
BE6653
F03819F04058
Telescopic
Extend
(Long)
TOYOTA
Hand-held
TesterTilt Up ON
Tilt Down Telescopic
Contract
(Short)
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-687
880 Author: Date:
2004 LAND CRUISER (RM1071U)
Tilt and Telescopic Manual Switch Circuit
CIRCUIT DESCRIPTION
The different voltage signals which are occurred by operating the manual switch are sent to the tilt and tele-
scopic ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check tilt and telescopic manual switch voltage.
When using TOYOTA hand-held tester
PREPARATION:
(a) Connect the TOYOTA hand-held tester to the DLC3.
(b) Turn ignition switch ON and push the TOYOTA hand-held
tester main switch ON.
(c) Select DATALIST mode on the TOYOTA hand-held tes-
ter.
CHECK:
Read the voltages on the tester screen when operating the
manual switch.
DI23O-13