1998 TOYOTA LAND CRUISER display

DI8ES-03
DI-710
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
903 Author
: Date
:
2004 LAND CRUISER (RM1071U)
PROBLEM SYMPTOMS TABLE
Proceed with troubleshooting of each circuit in the table below.
SymptomSuspected AreaSee page

With the ignition switch in ON position, the SRS warning light
sometimes lights up after approx. 6 seconds have elapsed.

SRS warning light is always lit up even when ignition switch is in
the LOCK position.
SRS warning light circuitDI-927

With the ignition switch in ON position, the SRS warning light
does not light up.

DTC is not displayed.

SRS warning light is always lit up at the time of DTC check pro-
cedure.
TC terminal circuitDI-932

DTC is displayed without TC and CG terminal connection.

I27345
Cowl Side J/B RH
76
3Q
IND 25
G-RT5
Theft Deterrent ECU
12
3D
G-R 21
M5 14
M9
3
M5 8
M9 (*2)(*1)
(*2) (*1) SECURITY (*2) LP (*1)
GND (*2) GND1 (*1) Multi Display
Cowl Side J/B RHW-B
8
3D
10
3D
W-B W-BH
H HJ10
J/C
II
*1: w/ Navigation system
*2: w/o Navigation system
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-969
1162 Author
: Date
:
2004 LAND CRUISER (RM1071U)
Security indicator circuit
CIRCUIT DESCRIPTION
When the theft deterrent system is preparing to be set, this circuit lights up the indicator.
When the system is set, the indicator blinks.
It also indicates the condition of the immobiliser system according to the request from the Transponder Key
ECU.
WIRING DIAGRAM
DIB4T-02

I24677
IND
(+) (-)
DI-970
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
1163 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
HINT:
In case of using the hand-held tester, start the inspection from step 1 and in case of not using the hand-held
tester, start from step 2.
1 Check security indicator using hand-held tester.
PREPARATION:
Connect the hand-held tester to the DLC 3.
CHECK:
Check that the theft deterrent in the indicator lights in ACTIVE TEST (See page DI-955).
OK Proceed to next circuit inspection shown in
problem symptoms table (See page DI-965).
NG
2 Check security indicator.
CHECK:
Connect the positive lead from the battery to terminal 7 (14) and
negative lead to terminal 6 (8), and check that the warning light
lights up.
( ): w/o Navigation system
OK:
Indicator light lights up.
NG Replace multi-display.
OK

A04550
DLC3
10 11 12 13 14 15 16 12345678
9
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-961
1154 Author
: Date
:
2004 LAND CRUISER (RM1071U)
6. FORCED DOOR LOCK CONTROL
While detecting intrusion into the vehicle and sounding alarm,
alarm control outputs the door lock at the moment the door is
unlocked, and prevents intrusion into the vehicle.
(1) Condition for Starting Forced Door Lock
Detecting any of the following conditions activates
the forced door lock.
Alarm system is in alarm status in active
mode.
Except for the case that the key unlock/lug-
gage unlock switch is turned on.
No key is in the ignition key cylinder.
Some of the doors are unlocked.
Since the start of the last forced lock, 0.38
sec. or more has been elapsed.
(2) Conditions for Stopping Forced Door Lock
Detecting any of the following conditions stops the
forced door lock.
All doors are locked.
An alarm is stopped.
A key is inserted into the key cylinder.
7. PANIC CONTROL
The function to sound the alarm when the user presses the pan-
ic switch of the wireless key.
8. ALARM MEMORY CONTROL
If an alarm is activated while a user leaves the vehicle, when the
user comes back to the vehicle and reset the security system,
the tail lights will come on for 2 sec. to show the alarm occur-
rence.
9. DTC CHECK (Using hand-held tester)
(a) Inspect the DLC3.
The vehicle's ECM uses ISO 9141-2 for communication.
The terminal arrangement of DLC3 complies with
SAEJ1962 and matches the ISO 9141-2 format.
HINT:
If the display shows ºUNABLE TO CONNECT TO VEHICLEº
when the cable of hand-held tester is connected to DLC3, the
ignition switch is turned ON and the scan tool is operated, there
is a problem either on the vehicle side or the tool side.
If communication is normal when the tool is connected to
another vehicle, inspect DLC3 on the original vehicle.
If communication does not function when the tool is con-
nected to another vehicle, the problem is probably in the
tool itself, so consult the Service Department listed in the
tool's instruction manual.
(b) Make sure the details of the DLC3.

I24672
Hand-held tester
DLC3
DI-962
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
1155 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(c) Prepare the hand-held tester.
(d) Connect the hand-held to DLC3.
(e) Turn the ignition switch ON and the hand-held tester
main switch ON.
(f) Use the hand-held tester to check the DTCs, note them
down. (For opening instructions, see the hand-held tes-
ter 's intrusion book).
10. DATA LIST
HINT:
By the DATA LIST displayed on the Hand-held tester, you can read the value of the switch, sensor, actuator
and so on without removing any parts. Reading the DATA LIST as a first step of troubleshooting is one of
the method to shorten the labor time.
(a) Turn the ignition switch OFF.
(b) Connect the hand-held tester to DLC3.
(c) Turn the ignition switch ON.
(d) According to the display on the tester, read the ºDATA LISTº.
THEFT DETERRENT ECU:
ItemConditionSpecified Condition
HOOD COURTSY SWEngine hood Close " OpenOFF/ON
INTRS DETECTIntrusion sensor detection OFF " ONOFF/ON
GLS BRK DETECTGlass broken sensor detection OFF " ONOFF/ON
KEY UNLK WRN SWInsert keyOFF/ON
IG SWIG switch ON or otherOFF/ON
PASSIVE MODEPassive mode " other modeOFF/ON
WARN BY GLS SENWarning by glass broken sensor OFF " ONOFF/ON
INTRUSION SENIntrusion sensor OFF " ONOFF/ON
WARNING (HORN)Warning by Horn OFF " ONOFF/ON
ENTRY DELAYEntry delay time0 s/14 s /30 s
11. ACTIVE TEST
HINT:
Performing ACTIVE TEST using the Hand-held tester allows the relay, and so on to operate without remov-
ing any parts. Performing ACTIVE TEST as a first step of troubleshooting is one of the method to shorten
the labor time.
DATA LIST can be displayed during ACTIVE TEST.
(a) Turn the ignition switch OFF.
(b) Connect the Hand-held tester to DLC3.
(c) Turn the ignition switch ON.
(d) According to the display on tester, perform the ºACTIVE TESTº.
THEFT DETERRENT ECU:
ItemTest detailsDiagnostic note
SECURITY INDICTurns security indicator ON/OFFConnect terminals TC and E1 of DLC1
SECURITY HORN2Turns security horn2 ON/OFF-

DIB5T-01
DI-946
- DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
1139 Author
: Date
:
2004 LAND CRUISER (RM1071U)
DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is displayed during DTC check, check the circuit corresponding to the code in the table
below (Proceed to the page given for the circuit).
DTC No.
(See Page)Circuit InspectionTrouble Area
B1242
(DI-949)Wireless door lock tuner circuit malfunction

Wire harness

Wireless door lock tuner (door control receiver)

Theft deterrent ECU

2004 LAND CRUISER (EWD548U)
71 G
Position of Parts in Instrument Panel
J 1 Junction Connector
J 2 Junction Connector
J 3 Junction Connector
J 4 Junction Connector
J 5 Junction Connector
J 6 Junction Connector
J 7 Junction Connector
J 8 Junction Connector
J 9 Junction Connector
J 10 Junction Connector
J 11 Junction Connector
J 12 Junction Connector
J 13 Junction Connector
J 14 Junction Connector
J 15 Junction Connector
J 16 Junction Connector
J 17 Junction Connector
J 18 Junction Connector
J 19 Junction Connector
J 20 Junction Connector
J 21 Junction Connector
K 3 Key Interlock Solenoid
M 5 Multi-Display
M 6 Multi-Display
M 7 Multi-Display
M 9 Multi-Display
P 4 Power Outlet (Front)
P 5 Power Outlet (Rear Console Box)
P 6 Power Quarter Window SW LH
P 7 Power Quarter Window SW RHR 5 Remote Control Mirror SW
R 6 Rheostat
R 7 Room Temp. Sensor (Front)
R 36 Radio and Player
R 37 Radio and Player
R 38 Radio and Player
R 39 Rear Seat Audio Controller
R 40 Roll Sensing of Curtain Shield Airbags Cutoff SW
S 3 Seat Heater SW (Driver's Seat)
S 4 Seat Heater SW (Front Passenger's Seat)
S 5 Stop Light SW
T 4 Telescopic Motor
T 5 Theft Deterrent ECU
T 7 Tilt and Telescopic ECU
T 8 Tilt and Telescopic ECU
T 9 Tilt Motor
T 10 Ignition Key Cylinder Light
Transponder Key Amplifier
T 11 Turn Signal Flasher
T 18 Towing Brake Controller
T 19 Transponder Key Computer
U 1 Unlock Warning SW
V 8 VSC Warning Buzzer
Y 1 Yaw Rate Sensor
Z 1 Option Connector (Glass Breakage Sensor)

2004 LAND CRUISER (EWD548U)
18E GLOSSARY OF TERMS AND SYMBOLS
BATTERY
Stores chemical energy and
converts it into electrical energy.
Provides DC current for the auto's
various electrical circuits.GROUND
The point at which wiring attaches to
the Body, thereby providing a return
path for an electrical circuit; without a
ground, current cannot flow.
CAPACITOR (Condenser)
A small holding unit for temporary
storage of electrical voltage.HEADLIGHTS
Current flow causes a headlight
filament to heat up and emit light. A
headlight may have either a single
(1) filament or a double (2) filament
1. SINGLE
FILAMENT
CIGARETTE LIGHTER
An electric resistance heating
element.2. DOUBLE
FILAMENT
CIRCUIT BREAKER
Basically a reusable fuse, a circuit
breaker will heat and open if too
much current flows through it.
Some units automatically reset when
cool, others must be manually reset.HORN
An electric device which sounds a
loud audible signal.
DIODE
A semiconductor which allows
current flow in only one direction.IGNITION COIL
Converts low-voltage DC current
into high-voltage ignition current for
firing the spark plugs.
DIODE, ZENERA diode which allows current flow in one
direction but blocks reverse flow only up
to a specific voltage. Above that potential,
it passes the excess voltage. This acts as
a simple voltage regulator.LIGHT
Current flow through a filament
causes the filament to heat up and
emit light.
PHOTODIODE
The photodiode is a semiconductor
which controls the current flow
according to the amount of light.LED (LIGHT EMITTING DIODE)
Upon current flow, these diodes emit
light without producing the heat of a
comparable light.
DISTRIBUTOR, IIA
Channels high-voltage current from
the ignition coil to the individual
spark plugs.METER, ANALOG
Current flow activates a magnetic
coil which causes a needle to move,
thereby providing a relative display
against a background calibration.
FUSEA thin metal strip which burns through
when too much current flows through it,
thereby stopping current flow and
protecting a circuit from damage.
FUSIBLE LINK
METER, DIGITAL
Current flow activates one or many
LED's, LCD's, or fluorescent
displays, which provide a relative or
digital display.
FUEL
FUSIBLE LINK
A heavy-gauge wire placed in high
amperage circuits which burns through on
overloads, thereby protecting the circuit.
The numbers indicate the crosssection
surface area of the wires.(for Medium Current Fuse)
(for High Current Fuse or
Fusible Link)MOTOR
A power unit which converts
electrical energy into mechanical
energy, especially rotary motion.
M