Lexus RX300 (MCU15). Manual — part 243
DI0W4–06
Inspector’s
Name
:
Customer’s Name
Date Vehicle
Brought In
Registration Date
Registration No.
Frame No.
Odometer Reading
/ /
/ /
Date Problem First Occurred
Frequency Problem Occurs
/ /
Continuous
Intermittent ( times a day)
Remains ON
Does not Light Up
DTC Check
1st Time
2nd Time
Normal Code
Malfunction Code (Code )
Normal Code
Malfunction Code (Code )
Symptoms
km
miles
Check Item
Normal
ABS does not operate.
ABS does not operate efficiently.
Does not Light Up
ABS & BA & TRC & VSC Check Sheet
BA does not operate.
VSC does not operate. (Wheels sideslip at the time of sharp turning.)
ABS Warning Light
Abnormal
Remains ON
Does not Light Up
Remains ON
Does not Light Up
Remains ON
Does not Light Up
SLIP Indicator
Light Abnormal
VSC Warning
Light Abnormal
Brake Warning
Light Abnormal
Malfunction
Indicator Light
TRC does not operate. (Wheels spin when starting rapidly.)
DI–204
–
DIAGNOSTICS
ABS & BA & TRC & VSC SYSTEM
LEXUS RX300 (RM785E)
CUSTOMER PROBLEM ANALYSIS CHECK
DI84M–01
F12361
w/ EBD:
F09750
Tc
CG
DLC3
–
DIAGNOSTICS
ABS & BA & TRC & VSC SYSTEM
DI–205
LEXUS RX300 (RM785E)
PRE–CHECK
1.
DIAGNOSIS SYSTEM
(a)
Check the warning lights.
(1)
Release the parking break pedal.
(2)
When the ignition switch is turned ON, check that
the ABS warning light, VSC warning light, brake
warning light
*1
and SLIP indicator light goes on for
approx. 3 seconds.
*1: w/ EBD only
HINT:
S
When the parking brake is applied or the level of the brake
fluid is low, the brake warning light is lit.
S
If the indicator check result is not normal, proceed to trou-
bleshooting for the ABS warning light circuit, VSC warn-
ing light circuit, brake warning light circuit or SLIP indica-
tor light circuit.
Trouble Area
See page
ABS warning light circuit
DI–287
VSC warning light circuit
DI–284
Brake warning light circuit
DI–290
SLIP indicator light circuit
DI–292
(b)
In case of not using hand–held tester:
Check the DTC.
(1)
Using SST, connect terminals Tc and CG of DLC3.
SST
09843–18040
(2)
Turn the ignition switch ON.
(3)
Read the DTC from the ABS warning light and VSC
warning light on the combination meter.
HINT:
S
If no code appears, inspect the diagnostic circuit, ABS
warning light circuit or VSC waning light circuit.
Trouble Area
See page
Tc terminal circuit
DI–298
ABS warning light circuit
DI–287
VSC warning light circuit
DI–284
R01346
Normal Code
0.25 sec.
0.25 sec.
2 sec.
ON
OFF
ON
OFF
0.5 sec.
0.5 sec.
Code 11 and 21
4 sec.
1.5 sec.
2.5 sec.
Code 11
Code 21
D09456
Hand–held Tester
DLC3
BR3890
DI–206
–
DIAGNOSTICS
ABS & BA & TRC & VSC SYSTEM
LEXUS RX300 (RM785E)
S
As an example, the blinking patterns for normal code and
codes 11 and 21 are shown on the left.
(4)
Codes are explained in the code table on page
DI–213.
(5)
After completing the check, disconnect terminals Tc
and CG, and turn off the display.
If 2 or more malfunction codes are identified at the same time,
the lowest numbered DTC will be displayed 1st.
(c)
In case of using hand–held tester:
Check the DTC.
(1)
Hook up the hand–held tester to the DLC3.
(2)
Turn the ignition switch ON.
(3)
Read the DTC by following the prompts on the tes-
ter screen.
HINT:
Please refer to the hand–held tester operator’s manual for fur-
ther details.
(d)
In case of not using hand–held tester:
Clear the DTC.
(1)
Using SST, connect terminals Tc and CG of DLC3.
SST
09843–18040
(2)
Turn the ignition switch ON.
(3)
Clear the DTC stored in ECU by depressing the
break pedal 8 times or more within 5 seconds.
(4)
Check that the warning light shows the normal
code.
(5)
Remove the SST from the terminals of DLC3.
SST
09843–18040
HINT:
Cancellation cannot be done by removing the battery cable or
ECU–IG fuse.
D09456
Hand–held Tester
DLC3
F09750
DLC3
CG
Ts
Tc
BR3904
0.13 sec.
0.13 sec.
ON
OFF
–
DIAGNOSTICS
ABS & BA & TRC & VSC SYSTEM
DI–207
LEXUS RX300 (RM785E)
(e)
In case of using hand–held tester:
Clear the DTC.
(1)
Hook up the hand–held tester to the DLC3.
(2)
Turn the ignition switch ON.
(3)
Operate the hand–held tester to erase the codes.
(See hand–held tester operator’s manual.)
2.
SENSOR SIGNAL CHECK (TEST MODE)
HINT:
If the ignition switch is turned from ON to ACC or LOCK during
test mode, DTC will be erased.
(a)
In case of not using hand–held tester:
Check the ABS sensor signal.
(1)
Turn the ignition switch OFF.
(2)
Using SST, connect terminals Ts and CG of DLC3.
SST
09843–18040
(3)
Start the engine.
(4)
Check that the ABS warning light blinks.
HINT:
If the ABS warning light does not blink, inspect the ABS warning
light circuit and Ts terminal circuit (See page DI–287,
DI–300).
(5)
Keep the vehicle in the stationary condition on the
flat place for 1 sec. or more.
(6)
Keeping the vehicle in the stationary condition and
the break pedal in free condition for 1 sec. or more,
continue to depress the break pedal with 147 N (15
kgf, 33 lbf) or more for 1 sec. or more.
(7)
Keeping the vehicle in the stationary condition, de-
press the brake pedal with 98 N (10 kgf, 22 lbf) or
more quickly.
HINT:
The above mentioned condition comes into existence, the ABS
warning light comes ON for 3 seconds.
(8)
Drive vehicle straight forward.
When driving the vehicle at the speed faster than 45
km/h (28 mph) for several seconds, check that the
ABS warning light comes off.
HINT:
There is a case that the sensor check is not completed if the ve-
hicle has its wheels spun or its steering wheel steered during
this check.
(9)
Stop the vehicle.
(10) Using SST, connect terminals Tc and CG of DLC3.
SST
09843–18040
(11) Read the number of blinks of the ABS warning light.
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