Page 1465 of 3115

F03815
Telescopic Extends
Mechanical
Lock Position Telescopic Contracts
Mechanical Lock
Position
Operation Range
Telescopic Contracts
Limit PositionTelescopic Extends
Limit Position
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
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-669
862 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B2611 Telescopic Position Sensor or Telescopic
Motor Circuit Malfunction
CIRCUIT DESCRIPTION
Telescopic motor is operated by the power voltage supplied
from tilt and telescopic ECU and makes the steering column
slide forward and rearward. Telescopic position sensor (Hole
IC) in the telescopic motor detects the sliding position of the for-
ward and rearward direction of the steering column and outputs
the signal to the CPU in response to that sliding amount.
HINT:
Limit positions can be confirmed on the screen of the TOYOTA
hand-held tester.
DTC No.DTC Detecting ConditionTrouble Area
B2611During telescopic function operation, telescopic operation
stops within the operation range.
Sensor power source circuit
Actuator power source circuit
Telescopic motor circuit
Tilt and telescopic ECU
WIRING DIAGRAM
DI23H-17
Page 1466 of 3115
DI-670- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
863 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 telescopic motor circuit (See page DI-684).
NG Repair or replace malfunction part.
OK
Check and replace the tilt and telescopic
ECU (See page IN-36).
Page 1467 of 3115
F17298
Tilt & Telescopic ECU
BatteryMAINEngine Room J/B
GND ECU-B2
3D
T7
W-B J1
J/CECUB
T7 3B
IICowl Side J/B RH
1
6 L-W
FL Block
F152
B-G
Cowl Side J/B RH1C1
12 Short Pin(A)BAT
1B24 L-O 2539
W-B
3D 42
AA
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-671
864 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B2620 ECU Power Source Circuit Malfunction
CIRCUIT DESCRIPTION
ECU power source circuit supply the battery positive voltage to tilt and telescopic ECU.
DTC No.DTC Detecting ConditionTrouble Area
B2620
The condition that the voltage of the ECU Power Source
circuit drop to be 8V or less continues for 10 seconds or
moreBattery
ECU power source circuit
Tilt and telescopic ECU
WIRING DIAGRAM
DI23I-16
Page 1468 of 3115
DI-672- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
865 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
1 Check that the battery positive voltage is 11V or more when engine is stopped.
NG Charge or replace battery.
OK
2 Check ECU power source circuit (See page DI-673).
NG Repair or replace malfunction part.
OK
Check and replace the tilt and telescopic
ECU (See page IN-36).
Page 1469 of 3115
F17298
Tilt & Telescopic ECU
BatteryMAINEngine Room J/B
GND ECU-B2
3D
T7
W-B J1
J/CECUB
T7 3B
IICowl Side J/B RH
1
6 L-W
FL Block
F152
B-G
Cowl Side J/B RH1C1
12 Short Pin(A)
BAT
1B24 L-O 2539
W-B
3D 42
AA
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-673
866 Author: Date:
2004 LAND CRUISER (RM1071U)
ECU Power Source Circuit
CIRCUIT DESCRIPTION
The ECU power source supplies power to the CPU and sensors, etc. power is supplied to the ECU even
when the ignition switch is lock position.
WIRING DIAGRAM
DI23K-16
Page 1470 of 3115
F05348
LOCK
ECUB
GND
(+) (-)
F05349
LOCK
GND
(-) (+)
DI-674- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
867 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
1 Check voltage between terminals ECUB and GND of ECU connector.
PREPARATION:
Remove ECU with connectors still connected.
CHECK:
Measure voltage between terminals ECUB and GND of ECU
connector.
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 1471 of 3115
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-675
868 Author: Date:
2004 LAND CRUISER (RM1071U)
3 Check ECU-B fuse.
PREPARATION:
Remove ECU-B fuse from engine room R/B.
CHECK:
Check continuity of ECU-B fuse.
OK:
Continuity
NG Check for short in harness and all components
connected to ECU-B fuse.
OK
Check for open circuit in harness and con-
nector between ECU and battery
(See page IN-36).
Page 1472 of 3115
F17328
T9
Tilt Motor
T4
Telescopic MotorTilt and Telescopic ECU
S5V1
SG1
S5V2
SG2
SG2 S5V2SG1 S5V1G-W
G-Y
B-W
B-YII5
12 10
G-W
G-YT8
T8
T8
T8 II5 3
7
3
713
14
12
10
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-679
872 Author: Date:
2004 LAND CRUISER (RM1071U)
Sensor Power Source Circuit
CIRCUIT DESCRIPTION
Power to the position sensor is output from ECU.
WIRING DIAGRAM
DI1TO-14