Lexus ES300 (2002 year). Manual — part 21
184
Cruise Control
: Parts Location
Code
See Page
Code
See Page
Code
See Page
A4
E6
A
S7
C
A25
E7
B
S13
C7
E8
C
T2
C10
E9
D
T3
D2
E10
E
T8
E1
A
J11
E2
B
S6
B
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1B
1C
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
1H
g
g
(
g
)
1K
Engine Wire and Engine Room J/B (Engine Compartment Left)
2B
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2G
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
2M
2O
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2P
(
)
3A
3A
Instrument Panel Wire and Passenger Side J/B (Instrument Panel Brace RH)
3B
Instrument Panel Wire and Passenger Side J/B (Instrument Panel Brace RH)
3B
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IF4
Engine Room Main Wire and Instrument Panel Wire (Right Side of Steering Column Tube)
IF5
Engine Room Main Wire and Instrument Panel Wire (Right Side of Steering Column Tube)
IK1
Instrument Panel Wire and Instrument Panel Wire (Instrument Panel Reinforcement RH)
IL1
Engine Wire and Instrument Panel Wire (Behind the Glove Box)
IL2
Engine Wire and Instrument Panel Wire (Behind the Glove Box)
: Ground Points
Code
See Page
Ground Points Location
ED
Left Fender
EE
Left Side of Cylinder Head
EF
Intake Side of Cylinder Block
ID
Instrument Panel Brace RH
: Splice Points
Code
See Page
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
I2
Engine Room Main Wire
I6
Engine Wire
185
SRS
NOTICE: When inspecting or repairing the SRS, perform the operation in accordance with the following precautionary
instructions and the procedure and precautions in the Repair Manual for the applicable model year.
Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most important source of information
when troubleshooting. When troubleshooting the SRS, always inspect the DTCs before disconnecting the battery.
Work must be started after 90 seconds from when the ignition switch is turned to the ”LOCK” position and the
negative (–) terminal cable is disconnected from the battery.
(The SRS is equipped with a back–up power source so that if work is started within 90 seconds from
disconnecting the negative (–) terminal cable of the battery, the SRS may be deployed.)
When the negative (–) terminal cable is disconnected from the battery, the memory of the clock and audio system will be
canceled. So before starting work, make a record of the contents memorized in the audio memory system. When work is
finished, reset the audio systems as they were before and adjust the clock. This vehicle has power tilt and power
telescopic steering, power seat and power outside rear view mirror which are all equipped with memory function.
However, it is not possible to make a record of the memory contents. So when the work is finished, it will be necessary
to explain this fact tot the customer, and ask the customer to adjust the features and reset the memory. To avoid erasing
the memory in each memory system, never use a back–up power supply from outside the vehicle.
Before repairs, remove the airbag sensor if shocks are likely to be applied to the sensor during repairs.
Do not expose the steering wheel pad, front passenger airbag assembly, side airbag assembly, curtain shield airbag
assembly, seat belt pretensioner, airbag sensor assembly or side airbag sensor assembly directly to hot air or flames.
Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, front passenger airbag
assembly, side airbag assembly, curtain shield airbag assembly, seat belt pretensioner, airbag sensor assembly and
side airbag sensor assembly should be inspected.
Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.
Never disassemble and repair the steering wheel pad, front passenger airbag assembly, side airbag assembly, curtain
shield airbag assembly, seat belt pretensioner, airbag sensor assembly or side airbag sensor assembly in order to reuse
it.
If the steering wheel pad, front passenger airbag assembly, side airbag assembly, curtain shield airbag assembly, seat
belt pretensioner, airbag sensor assembly or side airbag sensor assembly has been dropped, or if there are cracks,
dents or other defects in the case, bracket or connector, replace them with new ones.
Use a volt/ohmmeter with high impedance (10 k
Ω
/V minimum) for troubleshooting the system’s electrical circuits.
Information labels are attached to the periphery of the SRS components. Follow the instructions on the notices.
After work on the SRS is completed, perform the SRS warning light check.
If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section of the Repair
Manual.
186
SRS
B
6
B
5
B
4
B
12
B
19
B
27
B
13
B
14
B
16
B
17
B
10
B
11
B
8
B
7
B
15
B
26
B
9
B
20
C
10
C
9
A
7
A
8
IF1
1
IF1
3
IF1
2
IF1
4
2D
7
2D
5
2D
2
2L
3
2L
4
3B
3B
41
61
(*1)
(*2)
3B
3B
42
62
(*1)
(*2)
3B
3B
51
71
3B
3B
52
72
2R
8
2D
3
IA
10A
ECU–IG
From Power Source System (See Page 56)
2D
10
2D
9
2G
8
10A
IG2
1C
7
B–
R
B–
O
B–
O
B–
O
B–
R
L
W
P–
B
W
W
W
P–
B
Y–
B
Y
Y–
B
Y
W–
B
W–
B
Y
Y–
B
Y–
V
Y–
O
Y–
R
Y–
G
Y–
G
R
Y–
P
W–
R
BR
W–
R
BR
B–
W
BR
–
W
B–
W
BR
–
W
E1
IG1
D+
D2+
D2–
P+
P–
P2+
P2–
+SL
–SL
+SR
–SR
D–
IG2
GSW
SIL
TC
PL+
PL–
PR+
PR–
SIL
TC
GSW
Airbag Squib
(Steering Wheel Pad)
A35
Airbag Squib
(Front Passenger
Airbag Assembly
No. 1)
A33
Airbag Squib
(Front Passenger
Airbag Assembly
No. 2)
A34
Airbag Sensor
Front LH
A12
Airbag Sensor
Front RH
A13
Body ECU
Data Link Connector 3
D 2
Pretensioner LH
P11
Pretensioner RH
P12
Airbag Sensor Assembly
A30(A), A31(B), A32(C)
7
21
13
1
2
1
2
2
1
4
3
1
2
1
2
2
1
2
1
D–
D+
D2+
D2–
P+
P–
P2+
P2–
187
ID
B
28
A
15
A
5
A
14
A
13
A
9
A
10
C
18
C
12
C
19
C
20
C
8
C
7
C
17
C
15
A
12
A
11
P–
G
GR
–
R
LG
–B
GR
–
L
V
O
P
GR
Y–
R
Y–
G
BR
BR
L–
R
P
BR
G–
W
V
O
E2
CSL+
CSL–
VUCL
ESCL
ICL+
ICL–
CSR+
CSR–
VUCR
ESCR
VUPR
ESR
CSR+
CSR–
VUCR
ESCR
ICR+
ICR–
VUPR
ESR
SFL+
SFL–
CSL+
CSL–
VUCL
ESCL
Curtain Shielded
Airbag Sensor LH
C14
Curtain Shield
Airbag Squib LH
C16
Curtain Shielded
Airbag Sensor RH
C15
Curtain Shield
Airbag Squib RH
C17
Side Airbag
Squib RH
S17
Side Airbag
Squib LH
S22
Airbag Sensor Assembly
A30(A), A31(B), A32(C)
3
2
4
1
1
2
3
2
4
1
1
2
2
1
1
2
* 1 : w/ VSC
* 2 : w/o VSC
A
16
A
18
C
5
C
6
P–
L
GR
–
L
Y–
R
Y–
G
VUPL
ESL
VUPL
ESL
SFR+
SFR–
Side Airbag
Sensor LH
S16
Side Airbag
Squib RH
S23
2
1
1
2
Buckle SW LH
B 7
1
2
5
4
BA
A
2
L–
B
LSP+
A
1
GR
–
B
LSP–
A
19
LG
–B
LBE+
W–
B
B
2
G–
Y
PBEW
B
3
B–
Y
LA
C
14
G–
Y
RBE+
B–Y
G–Y
G–Y
Y
L
B–
G
B
S
eat
P
o
s
it
ion
A
ir
bag S
ens
or
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