Page 1457 of 3115
I25614
5 V5 ms DI-1012
- DIAGNOSTICSENGINE IMMOBILISER SYSTEM
1205 Author: Date:
2004 LAND CRUISER (RM1071U)
Referece:
(c) Waveform 2
ItemCondition
TerminalIMO - GND
Tool setting5 V/DIV, 5 ms/DIV
Vehicle conditionConstant
Page 1458 of 3115
F17299
Tilt & Telescopic ECU
BatteryALTJ/B No.3
F17B-G
3D
GND W-B J1
J/C
T7 TIL&TEL
+B T8 38
3C14
6
IICowl Side J/B RH
Cowl Side J/B RH1 FL Block
3D 42
W-BG-B
A
A DI-676
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
869 Author: Date:
2004 LAND CRUISER (RM1071U)
Actuator Power Source Circuit
CIRCUIT DESCRIPTION
This is the power source for the motors.
WIRING DIAGRAM
DI23L-17
Page 1459 of 3115
F05350
LOCK
GND+B
(+) (-)
F05349
LOCK
GND
(-)(+)
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-677
870 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
1 Check voltage between terminals +B and GND of ECU connector.
PREPARATION:
Remove ECU with connectors still connected.
CHECK:
Measure voltage between terminals +B and GND of ECU con-
nector.
OK:
Voltage: 8 - 16 V
OK Proceed to next circuit inspection shown on the
problem symptoms table (See page DI-663).
NG
2 Check continuity between terminal GND of ECU connector and body ground.
CHECK:
Measure resistance between terminal GND of ECU connector
and body ground.
OK:
Resistance: 1 kW or less
NG Repair or replace harness or connector.
OK
Page 1460 of 3115
DI-678- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
871 Author: Date:
2004 LAND CRUISER (RM1071U)
3 Check POWER fuse.
PREPARATION:
Remove POWER fuse from passenger side J/B.
CHECK:
Check continuity of POWER fuse.
OK:
Continuity
NG Check for short circuit in harness and all com-
ponents connected to POWER fuse.
OK
Check for open circuit in harness and con-
nector between ECU and battery
(See page IN-36).
Page 1461 of 3115
DI23F-13
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
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-665
858 Author: Date:
2004 LAND CRUISER (RM1071U)
CIRCUIT INSPECTION
DTC B2603 Tilt and Telescopic Manual switch circuit
Malfunction
CIRCUIT DESCRIPTION
The different voltage value is input to tilt and telescopic ECU by operating the manual switch. Then tilt and
telescopic ECU judges which motor and which direction tilt motor or telescopic motor should be moved based
on the voltage value.
DTC No.DTC Detecting ConditionTrouble Area
B2603
The abnormal voltage value which is not within the specifi-
cation is input to tilt and telescopic ECU when being oper-
ated with the manual switch.Tilt and telescopic manual switch circuit
Tilt and telescopic ECU
WIRING DIAGRAM
Page 1462 of 3115
DI-666- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
859 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
1 Check tilt and telescopic manual switch circuit (See page DI-687).
NG Repair or replace malfunction part.
OK
Check and replace the tilt and telescopic
ECU (See page IN-36).
Page 1463 of 3115

F03815
Tilt Up
Mechanical
Lock PositionTilt Down
Mechanical
Lock Position
Operation Range
Tilt Up Limit
PositionTilt Down
Limit Position
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-667
860 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B2610 Tilt Position Sensor or Tilt Motor Circuit
Malfunction
CIRCUIT DESCRIPTION
Tilt motor is operated by the power voltage supplied from tilt and
telescopic ECU and makes the steering column tilt upward and
downward. Tilt position sensor (Hole IC) in the tilt motor detects
the tilt of the steering column and outputs the signal to the CPU
in response to that tilt.
HINT:
Limit positions can be confirmed on the screen of the TOYOTA
hand-held tester.
DTC No.DTC Detecting ConditionTrouble Area
B2610During tilt function operation, tilt operation stops within the
operation range.
Sensor power source circuit
Actuator power source circuit
Tilt motor circuit
Tilt and telescopic ECU
WIRING DIAGRAM
DI23G-17
Page 1464 of 3115
DI-668- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
861 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
1 Check sensor power source circuit (See page DI-679).
NG Repair or replace malfunction part.
OK
2 Check actuator power source circuit (See page DI-676).
NG Repair or replace malfunction part.
OK
3 Check tilt motor circuit (See page DI-681).
NG Repair or replace malfunction part.
OK
Check and replace the tilt and telescopic
ECU (See page IN-36).