TOYOTA LAND CRUISER 1998 Factory Repair Manual
Manufacturer: TOYOTA, Model Year: 1998, Model line: LAND CRUISER, Model: TOYOTA LAND CRUISER 1998Pages: 3115, PDF Size: 54.88 MB
Page 1481 of 3115
F05351
ON
MSW GND
(+) (-)
F05352
ON
VC
(+) (-)
DI-688- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
881 Author: Date:
2004 LAND CRUISER (RM1071U)
When not using TOYOTA hand-held tester
PREPARATION:
Remove tilt and telescopic ECU with connector still connected.
CHECK:
Measure voltage between terminals MSW and GND of ECU
connector when operating the manual switch.
OK:
Manual switch positionStandard voltage
Neutral position0.00 - 0.20 V
Tilt up1.30 - 1.70 V
Tilt down0.30 - 0.50 V
Telescopic short0.65 - 0.95 V
Telescopic long2.05 - 2.75 V
RESULT:
ASwitch voltages in all directions are within the standard.
BSwitch voltage in a certain direction is out of the standard.
CSwitch voltages in all directions are out of the standard.
A Proceed to next circuit inspection shown on the
problem symptoms table (See page DI-663).
B Replace the manual switch.
C
2 Check voltage between terminal VC of ECU connector and body ground.
PREPARATION:
Remove ECU with connectors still connected.
CHECK:
Measure voltage between terminal VC of ECU and body
ground.
OK:
Voltage: 4.5 - 5.5 V
NG Go to step 4.
OK
Page 1482 of 3115
F03706
MSW
VC
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-689
882 Author: Date:
2004 LAND CRUISER (RM1071U)
3 Check tilt and telescopic manual switch.
PREPARATION:
Disconnect combination switch connector.
CHECK:
Measure resistance between terminals VC and MSW of com-
bination switch connector when operating the manual switch.
OK:
Switch positionResistance
Tilt up360 W
Tilt down1,990 W
Telescopic short790 W
Telescopic long160 W
NG Replace the manual switch.
OK
4 Check for open or short circuit in harness and connector between tilt and tele-
scopic ECU and manual switch (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 1483 of 3115
DI238-03
:
Customer 's Name
Date Vehicle
Brought InRegistration Year Registration No.
Frame No.
Odometer Reading/ /
/ /
Date Problem First Occurred
Frequency Problem Occurs/ /
ContinuousIntermittent ( times a day)
DTC CheckNormal Code
Malfunction Code (Code )
Normal CodeMalfunction Code (Code )
Symptomskm
miles Inspector 's
Name
POWER TILT AND POWER TELESCOPIC
STEERING SYSTEM CHECK SHEET
Manual Function
does not Operate
Auto Away/Return
Function does not
Operate
Memory Function does not OperateBoth Tilt and Telescopic
Tilt only
Telescopic only
Both Auto Away and Auto Return
Auto Away only
Auto Return only
1st Time
2nd Time
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-657
850 Author: Date:
2004 LAND CRUISER (RM1071U)
CUSTOMER PROBLEM ANALYSIS CHECK
Page 1484 of 3115
DI1T7-1 1
DI-660- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
853 Author: Date:
2004 LAND CRUISER (RM1071U)
DIAGNOSTIC TROUBLE CODE CHART
If a DTC is displayed during the DTC check, check the circuit for that code listed in the table below. For details
of each code, turn the page referred to under the ºSee pageº for the respective ºDTC No.º in the DTC chart.
DTC No.
(See Page)Detection ItemTrouble Area
B2603
(DI-665)Tilt and telescopic manual switch malfunctionTilt and telescopic manual switch circuit
Tilt and telescopic ECU
B2610
(DI-667)Tilt position sensor or tilt motor malfunction
Sensor power source circuit
Actuator power source circuit
Tilt motor circuit
Tilt and telescopic ECU
B2611
(DI-669)Telescopic position sensor or telescopic motor malfunction
Sensor power source circuit
Actuator power source circuit
Telescopic motor circuit
Tilt and telescopic ECU
B2620
(DI-671)ECU power source circuit malfunction
Battery
ECU power source circuit
Tilt and telescopic ECU
Page 1485 of 3115
DI237-14
Vehicle Brought to Workshop
Customer Problem Analysisare titles of pages in this manual, Items inside
with the page number indicated in the bottom portion.
See the inscribed pages for detailed explanations.
P. DI-657
Check and Clear DTC (Precheck)
Symptom Simulation
Symptomdoes not occur Symptom
Problem Symptoms Table
Circuit Inspection DTC ChartP. DI-658
Problem Symptom Confirmation
occurP. IN-26
DTC CheckNormal code
P. DI-658
P. DI-660P. DI-663
P. DI-665 ~ DI-687
Identification of Problem
Repair
Confirmation Test
EndStep 2, 5, 8, 9: Diagnostic steps permitting the use of the
TOYOTA hand-held tester. Malfunction code 1
2
34
5
8 67
9
Parts Inspection DI-656
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
849 Author: Date:
2004 LAND CRUISER (RM1071U)
POWER TILT AND POWER TELESCOPIC STEERING
COLUMN
HOW TO PROCEED WITH TROUBLESHOOTING
Perform troubleshooting in accordance with the procedure on the following page.
Page 1486 of 3115
DI23B-1 1
F05526
Tilt and Telescopic ECUTelescopic Motor
Manual SwitchTilt Motor
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-661
854 Author: Date:
2004 LAND CRUISER (RM1071U)
PARTS LOCATION
Page 1487 of 3115
F05340
TOYOTA Hand-held Tester
DLC3
DI239-15
N09214
DLC3 DI-658
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
851 Author: Date:
2004 LAND CRUISER (RM1071U)
PRE-CHECK
1. DESCRIPTION
(a) DIAGNOSIS SYSTEM
When troubleshooting Multiplex OBD (M-OBD) vehicles,
the only difference from the usual troubleshooting proce-
dure is that you connect the TOYOTA hand-held tester
to vehicle, and read off various data output from the ve-
hicle's Power Tilt and Telescopic Steering ECU.
The Power Tilt and Telescopic Steering ECU records the
applicable DTCs when the computer detects a malfunc-
tion in the computer itself or its circuit.
To check the DTCs, connect a TOYOTA hand-held tester
to DLC3 on the vehicle. The TOYOTA hand-held tester
enables you to erase the DTCs and activate the several
actuators and check freeze frame data and various forms
on steering data.
(b) DATA LINK CONNECTOR 3 (DLC3)
The Power Tilt and Telescopic Steering ECU uses ISO
14230 for communication. The terminal arrangement of
DLC3 complies with SAE J1962 and matches the ISO
14230 format.
Terminal No.ConnectionVoltage or ResistanceCondition
7Bus + LinePulse generationDuring transmission
4Chassis Grounde Body Ground 1 W or lessAlways
5Signal Grounde Body Ground 1 W or lessAlways
16Battery Positivee Body Ground 9 - 14 VAlways
HINT:
If your display shows ºUNABLE TO CONNECT TO VEHICLEº
when you have connected the cable of TOYOTA hand-held
tester to DLC3, turned the ignition switch ON and operated the
TOYOTA hand-held tester, there is a problem on the vehicle
side or tester side.
If communication is normal when the tester is connected
to another vehicle, inspect DLC3 on the original vehicle.
If communication is still not possible when the tester is
connected to another vehicle, the problem is probably in
the tester itself, so consult the Service Department listed
in the tester's Operator's Manual.
Page 1488 of 3115
F05340
TOYOTA Hand-held Tester
DLC3
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-659
852 Author: Date:
2004 LAND CRUISER (RM1071U)
2. DIAGNOSIS INSPECTION
(a) Check the DTC.
(1) Prepare the TOYOTA hand-held tester.
(2) Connect the TOYOTA hand-held tester to DLC3 at
the lower of the instrument panel.
(3) Turn the ignition switch ON and turn the TOYOTA
hand-held tester switch ON.
(4) Use the TOYOTA hand-held tester to check the
DTCs and freeze frame data, note or print them
(See the Operator's Manual for operating instruc-
tions.).
(5) See page DI-660 to confirm the details of the DTC.
(b) Clear the DTC.
The following actions will erase the DTC and freeze frame
data.
When using the TOYOTA hand-held tester:
Operating the TOYOTA hand-held tester to erase
the DTCs (See the Operator's Manual for operating
instructions.).
When not using the TOYOTA hand-held tester:
Disconnecting the battery terminals.
Page 1489 of 3115
DI23D-13
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMNDI-663
856 Author: Date:
2004 LAND CRUISER (RM1071U)
PROBLEM SYMPTOMS TABLE
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before you proceed with troubleshooting.
The table below will be useful for you in troubleshooting these electrical systems. The most likely causes
of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and re-
place the part when it is found to be faulty.
If the instruction ºProceed to next circuit inspection shown on the chartº is given in the flow chart
for each circuit, proceed to the circuit with the next highest number in the table to continue the
check.
If the problem still occurs even though there are no abnormalities in any of the other circuits, then
check and replace ECU.
SymptomSuspect AreaSee page
Both tilt and telescopic:
Manual, auto away/return and memory functions
Do not operate
Stop part way
Do not stop
1. Multiplex communication system
2. ECU power source circuit
3. Key unlock warning switch
4. Body ECU
5. Actuator power source circuit
6. Sensor power source circuit
7. Tilt motor circuit
8. Telescopic motor circuit
9. Tilt and telescopic ECU-
DI-673
BE-29
DI-1038
DI-676
DI-679
DI-681
DI-684
IN-36
Tilt only:
Manual, auto away/return and memory functions
Do not operate
Stop part way
Do not stop1. Multiplex communication system
2. Sensor power source circuit
3. Tilt motor circuit
4. Tilt and telescopic ECU-
DI-679
DI-681
IN-36
Telescopic only:
Manual, auto away/return and memory functions
Do not operate
Stop part way
Do not stop1. Multiplex communication system
2. Sensor power source circuit
3. Telescopic motor circuit
4. Tilt and telescopic ECU-
DI-679
DI-684
IN-36
Both tilt and telescopic:
Only tilt and telescopic manual switch function does not operate
1. Multiplex communication system
2. Tilt and telescopic manual switch circuit
3. Tilt motor circuit
4. Telescopic motor circuit
5. Tilt and telescopic ECU-
DI-687
DI-681
DI-684
IN-36
Tilt only:
Only tilt and telescopic manual switch function does not operate
1. Multiplex communication system
2. Tilt and telescopic manual switch circuit
3. Tilt motor circuit
4. Tilt and telescopic ECU-
DI-687
DI-681
IN-36
Telescopic only:
Only tilt and telescopic manual switch function does not operate
1. Multiplex communication system
2. Tilt and telescopic manual switch circuit
3. Telescopic motor circuit
4. Tilt and telescopic ECU-
DI-687
DI-684
IN-36
Page 1490 of 3115
DI-664- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
857 Author: Date:
2004 LAND CRUISER (RM1071U)Symptom
Suspect AreaSee page
Both away and return:
Only auto away/return function does not operate
1. Check status of auto away function using TOYOTA
hand-held tester
2. Multiplex communication system
3. Ignition switch
4. Key unlock warning switch
5. Tilt motor circuit
6. Telescopic motor circuit
7. Tilt and telescopic ECU
-
-
BE-29
BE-29
DI-681
DI-684
IN-36
Only away:
Only Auto away/return function does not operate
1. Multiplex communication system
2. Key unlock warning switch
3. Ignition switch
4. Tilt motor circuit
5. Telescopic motor circuit
6. Tilt and telescopic ECU-
BE-29
BE-29
DI-681
DI-684
IN-36
Only return:
Only auto away/return function does not operate
1. Multiplex communication system
2. Key unlock warning switch
3. Ignition switch
4. Tilt motor circuit
5. Telescopic motor circuit
6. Tilt and telescopic ECU-
BE-29
BE-29
DI-681
DI-684
IN-36