LEXUS LS430 2003 Factory Repair Manual

Fig. 33: Display Items In Warning Area
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b. Read DTCs
1. "OK" is displayed if the system is normal while "NG" is displayed if it is malfunctioning.
HINT:
When the ignition switch is turned to any position but ON during diagnosis mode, the mode is
canceled.

Fig. 34: Display OK And NG
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c. "- -" is displayed if there is an open or short circuit in communication lines between the meter and
each ECU bein
g checked. "E" is displayed if there is a problem with diagnosis communication

signal data.
Fig. 35: Display E And
- -
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WATER TEMPERATURE GAUGE:
WATER TEMPERATURE GAUGE FAIL-SAFE REFERENCE
FUEL SIGNAL (FUEL INJECTION SIGNAL):
FUEL SIGNAL (FUEL INJECTION SIGNAL) FAIL-SAFE REFERENCE
FUEL SIGNAL (GAUGE SIGNAL):
ConditionResponseRecovery
Water temperature data is interrupted for
5 seconds.The gauge needle indicates
below "C".Water temperature data is
received.
ConditionResponseRecovery
While the ignition switch is in the ON
position, the fuel injection signal is
interrupted for 60 seconds.Fuel gauge calibration is
performed using average fuel
consumption data.The ignition switch is turned
from off to on and normal
data is received.

FUEL SIGNAL (GAUGE SIGNAL) FAIL-SAFE REFERENCE
SHIFT INDICATOR:
SHIFT INDICATOR FAIL-SAFE REFERENCE
GEAR POSITION INDICATOR (1 TO 6):
GEAR POSITION INDICATOR (1 TO 6) FAIL-SAFE REFERENCE
ABS & BRAKE:
ABS & BRAKE FAIL-SAFE REFERENCE
DOOR:
DOOR FAIL-SAFE REFERENCE
TAIL:
TAIL FAIL-SAFE REFERENCE
BEAM:
BEAM FAIL-SAFE REFERENCE
ConditionResponseRecovery
While the ignition switch is in the ON position, the
sender signal is interrupted for 60 seconds and a
malfunction signal is received from one of the gauges
for 10 to 20 seconds.The needle indicates
E, and the warning
light comes on.The ignition switch is
turned from off to on and
normal data is received.
ConditionResponseRecovery
"P to D" data is interrupted for 3 seconds.All indicators go off.Normal data is received.
"S" data is interrupted for 3 seconds.The "S" indicator goes off.Normal data is received.
ConditionResponseRecovery
Gear position data is interrupted for 3 seconds or a malfunction
signal is received.The indicator goes
off.Normal data is
received.
ConditionResponseRecovery
ABS & Brake data is interrupted for 10 seconds.The warning light comes on.Normal data is received.
ConditionResponseRecovery
Regular data is interrupted.The data received most recently remains displayed.Normal data is received.
ConditionResponseRecovery
Regular data is interrupted.The data received most recently remains displayed.Normal data is received.
ConditionResponseRecovery
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11[The indicator goes off.Normal data is received.

AIRBAG:
AIRBAG FAIL-SAFE REFERENCE
COMPASS:
COMPASS FAIL-SAFE REFERENCE
OUTSIDE TEMP.:
OUTSIDE TEMP FAIL-SAFE REFERENCE
MULTI-INFORMATION:
MULTI-INFORMATION FAIL-SAFE REFERENCE
RHEOSTAT:
RHEOSTAT FAIL-SAFE REFERENCE
DATA LIST
According to the DATA LIST displayed by the hand-held tester, you can read the value of the switch, sensor,
actuator and so on without parts removal. Reading the DATA LIST as the first step of troubleshooting is one
method to shorten work time.
a. Warm up the en
gine.
ConditionResponseRecovery
Airbag data is interrupted for 10 seconds or there is a
malfunction in the meter's internal CPU.The warning light
comes on.Normal data is
received.
ConditionResponseRecovery
Unspecified data is received.Only the compass frame is displayed.Direction data is received.
ConditionResponseRecovery
Abnormal data and sensor malfunctioning data are
received."- -.°C (- -°F)" is
displayed.Normal data is
received.
Outside temp, data is interrupted for 10 seconds.The display becomes
blank.Normal data is
received.
ConditionResponseRecovery
Cruise information data is interrupted
for 60 seconds.The display becomes blank (only measurement
units are displayed).Normal data is
received.
ConditionResponseRecovery
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03[
abnormal data is received.The display remains in
daytime mode.Normal data is
received.

b. Turn the ignition switch to OFF.
c. Connect the hand-held tester to DLC3.
d. Turn the ignition switch to ON.
e. Operate the hand-held tester according to the steps on the display and select "DATA LIST".
METER:
Fig. 36: Meter Data List Item Reference Chart

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BODY No.2:
Fig. 37: Body No.2 Data List Item Reference Chart

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BODY No.3:

Fig. 38: Body No.3 Data List Item Reference Chart
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BODY No.4:
Fig. 39: Body No.4 Data List Item Reference Chart

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BODY No.5:
Fig. 40: Body No.5 Data List Item Reference Chart

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SRS AIRBAG:

Fig. 41: SRS Airbag Data List Item Reference Chart
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STEERING PAD:
Fig. 42: Steering Pad Data List Item Reference Chart

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ENGINE:
ENGINE DATA LIST ITEM REFERENCE
ABS:
ABS DATA LIST ITEM REFERENCE
ItemMeasurement Item/ Range
(Display)Normal ConditionDiagnostic Note
VEHICLE
SPEEDVehicle speed / Min.: 0 km/h
(0 mph), Max.: 255 km/h (158
mph)Almost same as actual
vehicle speed (When
driving)
-
ENGINE
SPDEngine speed / Min.: 0 rpm,
Max.: 16,383 rpmAlmost same as actual
engine speed (When
engine is running)
-
COOLANT
TEMPCoolant Temperature / Min.: -
40°C (-40°F), Max.: 140 °C
(284 °F)After warning up: 80 to
95°C (178 to 203°F)If the value is "-40°C (-40°F)" or
"140°C (248 °F)", sensor circuit
is open or shorted
ItemMeasurement Item/ Range (Display)Normal ConditionDiagnostic
Note
(FR/FL/RR/RL)
SPDVehicle speed / Min.: 0 km/h (0 mph),
Max.: 326 km/h (202 mph)Almost samo as actual speed
(When driving)-

ACTIVE TEST
Performing the ACTIVE TEST using the hand-held tester allows the meters, indicators and so on to operate
without parts removal. Performing the ACTIVE TEST as the first step of troubleshooting is one way to shorten
labor time.
It is possible to display the DATA LIST on hand-held tester during the ACTIVE TEST.
a. Connect the hand-held tester to DLC3.
b. Turn the ignition switch to the ON position.
c. From the display on tester, perform the "ACTIVE TEST".
METER:
METER ACTIVE TEST REFERENCE
ItemTest DetailsDiagnostic Note
SPEED METER0 / 40(24) / 80(48) / 120(72) / 160(96) / 180
(108) / 200(120) km/h(mph)-
TACHOMETEROrpm / 1000rpm / 2000rpm / 3000rpm /
4000rpm / 5000rpm / 6000rpm / 7000rpm-
FUEL GAUGEOFF, EMPTY, 1/2, FULL-
COOLANT TEMPLOW /NORMAL /HIGH-
LOW FUEL WARNIndicat. Lamp FUEL (OFF/ON)Confirm that the vehicle is stopped
and engine idling
OPEN DOOR
WARNIndicat. Lamp DOOR (OFF/ON)Confirm that the vehicle is stopped
and engine idling
P-BELT REMINDIndicat. Lamp P-SEAT BELT (OFF/ON)Confirm that the vehicle is stopped
and engine idling
D-BELT REMINDIndicat. Lamp D-SEAT BELT (OFF/ON)Confirm that the vehicle is stopped
and engine idling
OIL PRESS WARNIndicat. Lamp OIL (OFF/ON)Confirm that the vehicle is stopped
and engine idling
DISCHARGE
WARNIndicat. Lamp CHARGE (OFF/ON)Confirm that the vehicle is stopped
and engine idling
BRAKE WARNIndicat. Lamp BRAKE (OFF/ON)Confirm that the vehicle is stopped
and engine idling
HEADLIGHT INDICIndicat. Lamp HEAD (OFF/ON)Confirm that the vehicle is stopped
and engine idling
TAILLIGHT INDICIndicat. Lamp TAIL (OFF/ON)Confirm that the vehicle is stopped
and engine idling
CRUISE INDICIndicat. Lamp CRUISE (OFF/ON)Confirm that the vehicle is stopped
and engine idling
ECT SNOW INDICIndicat. Lamp ECR SNOW (OFF/ON)Confirm that the vehicle is stopped
and engine idling