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Схема SRS AirBag Lexus IS250C IS350C [Америка] 2014 год
Occupant Detection Sensor
Side Airbag Squib Circuit LH
Windshield Wiper Switch Assembly
Power Window Regulator Master Switch Assembly
ECM
Front Seat Inner Belt Assembly RH
Door Side Airbag Sensor LH
Junction Connector
Junction Connector
Junction Connector
Spiral Cable Sub-Assembly , Driver Side Squib Circuit (Horn Button Assembly) , Driver Side Squib 2nd Step Circuit (Horn Button Assembly)
Junction Connector
Front Power Window Regulator Switch Assembly RH
Front Seat Inner Belt Assembly LH
Occupant Detection ECU
Junction Connector
Center Airbag Sensor Assembly
Side Airbag Sensor Assembly RH
Side Airbag Sensor Assembly LH
Sliding Roof Control ECU Assembly
Seat Belt Tension Sensor (Front Seat Outer Belt Assembly RH)
DCM (Telematics Transceiver)
Front Pretensioner RH (Front Seat Outer Belt Assembly RH)
Front Passenger Side Squib Circuit (Instrument Panel Passenger without Door Airbag Assembly)
Front Airbag Sensor RH
Lower No. 1 Instrument Panel Airbag Assembly
DLC3
A/C Amplifier Assembly
Main Body ECU LH (Cowl Side J/B LH)
Side Airbag Squib Circuit RH
Certification ECU Assembly
Power Source Control ECU
Integration Control & Panel Assembly
Junction Connector
Junction Connector
Junction Connector
Main Body ECU RH (Cowl Side J/B RH)
Clock Assembly
Network Gateway ECU
Door Side Airbag Sensor RH
Integration Control & Panel Assembly , Clock Assembly
Front Airbag Sensor LH
Lower No. 2 Instrument Panel Airbag Assembly
Junction Connector
Combination Meter Assembly
Spiral Cable Sub-Assembly , Driver Side Squib Circuit (Horn Button Assembly)
Spiral Cable Sub-Assembly , Driver Side Squib 2nd Step Circuit (Horn Button Assembly)
Front Pretensioner LH (Front Seat Outer Belt Assembly LH)
1
C
SFL-
C
SFL+
Q17
2
2
+SR
-SR
B
W
B
W
1
2
A
-SR
A
+SR
A41
1
2
+SL
-SL
B
W
B
W
1
2
A
-SL
A
+SL
A12
1
B
B
A
A
Y
Y-B
Y-G
Y-R
Y-G
Y-R
Y
Y-B
4
3
2
1
A
P2-
A
P2+
A
P-
A
P+
a1(A),a2(B)
z5(B)
Y-G
A
D2-
Y-R
A
D2+
Y
A
D-
Y-B
A
B
IG2
D+
A
23
RA
10A IGN
W-B
W-B
W-B
W-B
7
RD
9
LD
8
LD
GR
LG
RA
9
G
BE
Q6
LA
7
CANH
A
CANL
A
13
5
E2
B
Micro Computer
22
23
10A MPX-B
1
(BAT)
7.5A GAUGE
RA
25
(IG)
RK
5
RA
24
BE
LG
G-R
LG
LG
SRS
2
Junction Connector
J27
DK-
DK+
PK-
PK+
GSW
A
B
18
LSP+
LSP-
LBE+
LBE-
B-W
B-L
O
Y
B
22
B
20
R
Junction Connector
J80(B)
(IG)
14
RD
10A ECU-IG RH
64
84
J34(A),J35(B)
Front Passenger's Seat Belt Warning Light
A
A
E1
A
W-B
W-B
RA
C
LBE-
LBE+
C
LSP-
C
LSP+
C
3
1
4
2
Seat Position Airbag Sensor
Buckle Switch
2
1
2
1
1
2
5
4
21
27
29
28
30
2
1
3
4
7
8
6
5
10
9
6
7
20
19
10
9
22
25
26
J47(A),P62(B),Q52(C)
MPX+
MPX-
Input Circuit
Power Supply Circuit
IG+
12
J47(A),P62(B),Q52(C)
13
(IG)
15
J79
1
PK+
A
PK-
Y-B
Y
A
2
J20
1
DK+
A
DK-
Y-B
Y
A
2
P6
R-
R+
1
PR+
B
PR-
Y-B
Y
B
2
Q12
L-
L+
1
PL+
C
PL-
Y-B
Y
C
2
Y
14
Y-B
1
B
SFR-
B
SFR+
P17
2
Y
Y-B
FSR-
B
FSR+
B
14
FSR-
B
13
W
B
B
W
W
B
W
B
Buckle Switch
BR
BR
BR
BR
B
B
W
B
W
B
W
B
W
B
* 7 :w/ LEXUS Navigation System
* 8 :w/o LEXUS Navigation System
3
A
4
A
2
A
1
A
2
B
1
B
2
C
1
C
z6(C)
J25(A),z5(B),z6(C)
1
1
Y
Y
Y-B
Y-B
2
2
BCR+
BCR-
BBR-
BBR+
1
2
2
1
BCR-
BCR+
3
4
P11
B
8
L3
B
15
G
BBL+
BBL-
R
G
Y-B
11
C
M3
8
C
Q15
4
3
BCL+
BCL-
1
2
2
BBR+
1
BBR-
Y-B
Y
Y
BBL+
BBL-
BCL-
BCL+
R
J92(B)
PAON
A
P-AB
A
17
23
LA
3
LA
8
LD
17
LA
21
GR
(*9)
B
(*9)
GR
(*9)
B
(*9)
PAON
P-AB
6
A
4
B
(*8)
7
A
(*7)
13
B
J54(A)
* 9 :w/ Front Passenger's Airbag ON/OFF Indicator Light
* 7 :w/ LEXUS Navigation System
* 8 :w/o LEXUS Navigation System
67
57
Junction Connector
J27
J21
SIL
7
R
5
16
1
12
7
18
9
25
W
SB
2
4
1
12
A
24
A
6
A
18
B
3
PBLT
Front Passenger's Seat Belt Warning Light
P
P
P(*8)
P(*7)
B
B
B
Junction Connector
J27
J54(A)
J92(B)
PBEW
L
IG+
IG+
(*7)
(*8)
(*7)
(*8)
GR
MPI2
BR
BR
MPX+
30
MPX-
GR
5
MPD1
3
13
MPX2
14
MPX1
GR
RJ
21
4
28
P33
MPX2
27
MPX1
17
MPX2
J58
5
A30(A),Q3(C)
MPX2
MPX1
C
15
B
21
A
17
1
Front Controller
2
2F
6
2F
5
7
MPX1
MPX1
7
M17
GR
GR
4
MPX1
Power Source Control ECU
MPX2
6
24
MPX2
J26
J55
GR
GR
GR
GR
7
31
GR
MPI1
GR
MPD2
12
GR
GR
BR
LL
8
LA
2
16
GSW
RA
7
B
CA1L
18
W
L
17
CA1H
Junction Connector
J1
Junction Connector
J2
R
W
W
SB
W
B
J47(A),P62(B),Q52(C)
J76
J75(B)
BR
B
B
BR
BR
GR
P2-
P2+
P+
P-
D2-
D2+
D-
D+
12
LD
RA
10
RD
7
RA
5
W-B
ES
E2
W-B
W-B
W-B
A
1
A
13
89
29
LD
8
LD
9
W-B
W-B
W-B
Junction Connector
J27
SFR-
SFR+
SFL-
SFL+
Clock Assembly
W
B
38
60
W
B
CANH
CANL
A5
25
24
(IG)
2
1
T16
P
26
RJ
10A IGN
BR
G
2
BSW
BGND
GND
PS
GBT
GPS
BT
VPS
VBT
P39
T17
1
3
2
1
3
G
GR
V
L
G
R
1
7
5
6
2
9
13
14
6
RBE-
15
RBE+
7
B-W
B-L
IG
5
8
16
17
P
T18
PS
GPS
VPS
GBT
BT
VBT
W-B
W-B
L
G
R
8
3
4
18
R
R
10
DIA
R
11
FSR+
W
12
Even in cases of a minor collision where the SRS does not deploy, the following parts should be inspected;
*
Never use SRS parts from another vehicle. When replacing parts, replace with new parts.
If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section of the
Repair Manual.
After work on the SRS is completed, check the SRS warning light.
Information labels are attached to the periphery of the SRS components. Follow the instructions of the notice.
*
Use a volt/ohmmeter with high impedance (10 kΩ/V minimum) for troubleshooting electrical circuits of the system.
* Door side airbag sensor assembly
However, it is not possible to make a record of these memory contents. So when the work is finished, it will be necessary
to explain it to your customer, and ask the customer to adjust the features and reset the memory.
*
*
*
Work must be started more than 90 seconds after the engine switch is pushed to the "OFF" position and the negative (-)
terminal cable is disconnected from the battery.
When the negative (-) terminal cable is disconnected from the battery, the memory of the clock and audio system
will be cleared. So before starting work, make a record of the contents in the audio memory system.
* Steering wheel pad
* Side airbag assembly
* Front passenger airbag assembly
* Seat belt pretensioner
* Center airbag sensor assembly
* Front airbag sensor assembly
* Knee airbag assembly
* Side airbag sensor assembly
When work is finished, reset the audio systems as they were before and adjust the clock. Some vehicles have power tilt
steering, power telescopic steering, power seat and power outside rear view mirror which are all equipped with memory function.
*
Before repair, remove the airbag sensor if shocks are likely to be applied to the sensor during repair.
NOTICE : When inspecting or repairing the SRS, perform service in accordance with the following precautionary
instructions and the procedure, and precautions in the Repair Manual applicable for the 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.
*
*
*
(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 deploy.)
To avoid erasing the memory in each system, never use a back-up power supply from outside the vehicle.
*
Do not expose the following parts directly to hot air or flame;
3
Junction Connector
P24
24
8
18
7
12
1
97
96
BR
Junction Connector
J71
4
7
L17
MPX1
17
MPX2
GR
GR
2
GR
Q36(G)
MPX1
MPX1
G
23
G
24
GR
Front Passenger's Airbag ON/OFF Indicator Light
Front Power Window Regulator Switch Assembly RH
Door Side Airbag Sensor LH
Power Window Regulator Master Switch Assembly
Front Pretensioner RH (Front Seat Outer Belt Assembly RH)
Side Airbag Sensor Assembly RH
Side Airbag Squib Circuit RH
ECM
Front Airbag Sensor LH
Main Body ECU LH (Cowl Side J/B LH)
Front Airbag Sensor RH
Main Body ECU RH (Cowl Side J/B RH)
Network Gateway ECU
Lower No. 2 Instrument Panel Airbag Assembly
Clock Assembly
Door Side Airbag Sensor RH
Lower No. 1 Instrument Panel Airbag Assembly
DLC3
Spiral Cable Sub-Assembly
Windshield Wiper Switch Assembly
Combination Meter Assembly
Center Airbag Sensor Assembly
Center Airbag Sensor Assembly
Center Airbag Sensor Assembly
Integration Control &Panel Assembly
Integration Control & Panel Assembly
A/C Amplifier Assembly
Certification ECU Assembly
Seat Belt Tension Sensor (Front Seat Outer Belt Assembly RH)
Front Seat Inner Belt Assembly LH
Front Pretensioner LH (Front Seat Outer Belt Assembly LH)
Side Airbag Sensor Assembly LH
Side Airbag Squib Circuit LH
Sliding Roof Control ECU Assembly
Occupant Detection ECU
Occupant Detection Sensor
Front Seat Inner Belt Assembly RH
Front Passenger Side Squib Circuit (Instrument Panel Passenger without Door Airbag Assembly)
Driver Side Squib Circuit (Horn Button Assembly)
Driver Side Squib 2nd Step Circuit (Horn Button Assembly)
12
B
13
A
15
B
4
A
DCM (Telematics Transceiver)
GSW
J101(A)
24
A
W
LA
10
LA
9
GSW3
A
W
24
*
*
*
If the following parts have been dropped, or have cracks, dents and other defects in their case, bracket, and connector,
replace with new one.
For the purpose of reuse, never disassemble and repair the following parts.
PL1
QM1
JP2
JP2
QP2
LP1
JP2
PT2
PL1
QM1
JA5
JA5
JA1
JA1
Ja1
Ja1
Ja1
Ja1
LP1
MQ1
MQ1
JP2
JP2
JA3
JA3
PT2
PT2
PT2
PT2
PT2
PT2
PT2
J1
P1
J4
J1
J2
J2
J4
Электрические цепи подушек безопасности защищены предохранителем IG2 на 10 Ампер (красный) . На этом автомобиле система SRS AirBag имеет коммуникацию по CAN-BUS.
В данной схеме рассмотрены модификации: с системой телематики и без с системой навигации и без