1998 TOYOTA LAND CRUISER wiring

DIB5X-02
I27347
U1
Unlock Warning SWCowl Side J/B RH
KSW 3E25
R-B
R-B10
3E23
3P3
3P1
3P2
3P1
W-B W-B
W-B
2E 18
IF Set Bolt of Cowl Side J/B LH21W-BGND 14 T19
Transponder Key ECU DI-1014
- DIAGNOSTICSENGINE IMMOBILISER SYSTEM
1207 Author
: Date
:
2004 LAND CRUISER (RM1071U)
CIRCUIT INSPECTION
DTC B2780 Key Unlock Warning Switch Malfunction
CIRCUIT DESCRIPTION
This DTC is detected when the Transponder key ECU does not detect the key unlock warning switch ON
even with the ignition switch ON. (In normal condition, the key unlock warning switch should be ON when
the ignition switch is ON.)
DTC No.DTC Detecting ConditionTrouble Area
B2780The key unlock warning switch On is not detected when the
ignition switch is ON.
Key unlock warning switch

Wire harness
WIRING DIAGRAM

DIB5W-01
I25609
T19
- DIAGNOSTICSENGINE IMMOBILISER SYSTEM
DI-1009
1202 Author
: Date
:
2004 LAND CRUISER (RM1071U)
TERMINALS OF ECM
1. TRANSPONDER KEY ECU
(a) Disconnect the transponder key ECU connector.
Standard:
Symbols (Terminal No.)Wiring ColorConditionSpecified condition
T19-14 Body ground
(GND
Body ground)W-B e Body groundConstantContinuity
T19-1 T19-14
(+B
GND)L-W e W-BConstant10 - 14 V
T19-2 T19-14
(IG
GND)B-R e W-BIgnition switch OFF "ON0 V " 10 - 14 V
T19-10 T19-14
(KSW
GND)R-B e W-BNo key in the ignition key cylinder " With keyNo Continuity " Continuity
T19-4 T19-14
(CTY
GND)R-Y eW-BDriver's door close " openNo Continuity " Continuity
T19-10 T19-14
(KSW
GND)R-B e W-BNo key in the ignition key cylinder " With key10 - 14 V " 0 V
T19-8 T19-14
(VC5
GND)Y e W-BIgnition switch OFF "ON0 V " 5 V
T19-12 T19-14
(TXCT
GND)V-G e W-BIgnition switch OFF "ONWaveform 1
T19-1 1 T19-14
(CODE
GND)L-B e W-BIgnition switch OFF "ONWaveform 2
T19-6 T19-14
(EFIO
GND)W e W-BIgnition switch OFF "ONWaveform 3
T19-7 T19-14
(EFII
GND)Y e W-BIgnition switch OFF "ONWaveform 4
T19-3 T19-14
(IND
GND)G-R e W-BImmobiliser system unset " set0 V "
10 - 14 V e 0 V
T19-4 T19-14
(CTY
GND)R-Y e W-BDriver's door close " open10 - 14 V " 0 V

I25615
E5E6
E7E8
E9
I25613
5 V5 ms
- DIAGNOSTICSENGINE IMMOBILISER SYSTEM
DI-101 1
1204 Author
: Date
:
2004 LAND CRUISER (RM1071U)
2. ECM
Symbols (Terminal No.)Wiring ColorConditionSpecified condition
E9-3 e E7-1
(BATT e E1)B-R e BRConstant9 - 14 V
E9-1 e E7-1
(+B e E1)B-Y e BRIgnition switch OFF "ON9 - 14 V
E9-2 e E7-1
(+B2 e E1)B-Y e BRIgnition switch OFF "ON9 - 14 V
E9-9 e E7-1
(IGSW e E1)B-R e BRIgnition switch OFF "ON9 - 14 V
E8-27 e E7-1
(IMI e E1)W e BRNo key in the ignition key cylinder " With keyWaveform 1
E8-26 e E7-1
(IMO e E1)Y e BRNo key in the ignition key cylinder " With keyWaveform 2
E7-1 e Body ground
(E1 e Body ground)BR e Body groundConstantContinuity
(a) Inspection using osilloscope.
Referece:
(b) Waveform 1
ItemCondition
TerminalIMI - GND
Tool setting5 V/DIV, 5 ms/DIV
Vehicle conditionIgnition switch ON

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

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

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

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

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
more
Battery

ECU power source circuit

Tilt and telescopic ECU
WIRING DIAGRAM
DI23I-16