sensor ACURA CSX 2006 Service Repair Manual

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SRS Unit Inputs and Outputs at Connector B (28P)
Terminal
Number Wire Color Terminal Name Description
24-39
1 RED
LRPPower source for the driver’s seat belt tensioner
2 BRN LRPGround for the driver’s seat belt tensioner
3 GRN RRPPower source for the front passenger’s seat belt tensioner
4 LT BLU RRPGround for the front passenger’s seat belt tensioner
5 GRY SSGround for the driver’s seat position sensor
6 LT GRN SSPower source for the driver’s seat position sensor
7 ORN LBPPower source for the driver’s buckle tensioner
8 GRN LBPGround for the driver’s buckle tensioner
9 YEL RBPPower source for the front passenger’s buckle tensioner
10 WHT RBPGround for the front passenger’s buckle tensioner
11 YEL LBSC Driver’s seat belt buckle switch un-buckled signal
12 LT GRN LBSO Driver’s seat belt buckle switch buckled signal
15 BLU RBSC Front passenger’s seat belt buckle switch un-buckled signal
16 ORN RBSO Front passenger’s seat belt buckle switch buckled signal
17 GRN LSAPower source for the driver’s side airbag inflator
18 RED LSAGround for the driver’s side airbag inflator
19 WHT RSAPower source for the front passenger’s side airbag inflator
20 BLU RSAGround for the front passenger’s side airbag inflator
21 BRN LCA1Power source for the left side curtain airbag inflator
22 BLU LCA1Ground for the left side curtain airbag inflator
23 GRY RCA1Power source for the right side curtain airbag inflator
24 RED RCA1Ground for the right side curtain airbag inflator
25 PNK LBS1Power source for the left side impact sensor (first), left side
impact sensor (second), and rear safing sensor
26 BLU LBS1Ground for the left side impact sensor (first), left side impact
sensor (second), and rear safing sensor
27 BRN RBS1Power source for the right side impact sensor (first), right side
impact sensor (second)
28 YEL RBS1Ground for the right side impact sensor (first), right side impact
sensor (second)
NOTE: BLU or BRN wires may be substituted for the wire colors in this table.
Wire side of female terminals
08/08/21 13:55:34 61SNR030_240_0039
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Î(#') ’06 model
24-40SRS
Circuit Diagram
GRN
BLU YEL
214 Q
E
G504
G602
BLK
LT GRN*
BLK*
BLK*
ORN*
LT BLU*
WHT*
RED* BLU*RED*
YEL*
2 1
G506 5
22
23 13 BLU
MICURED
2
4 MICU
GRY
YEL YEL
3
1
17 Vs
Vo
Vs
Vo
Vs
Vo
Vs
Vo BLU
BRN
5
10 15
GRY
123 3 21
LT GRN
16
11 6
GRY
BLU
GRN RED
4
914
WHT
123
321
BLK
13
83
RED
BRN MAIN CIRCUIT
VB
VA
WHT
GAUGE CONTROL MODULE (TACH)
BLK
412 SRS UNIT
ODS UNIT
7112 No. 9
(7.5 A) (7.5 A)
No. 10
No. 11
(10 A)
8
9 41
BRN
BLK
YEL
BLU GRN J
BATTERY
BAT
IG1
IGNITION SWITCH
UNDER-DASH FUSE/RELAY BOX
BLK
GRN
WHT BRN
A17
DRIVE CIRCUIT DRIVE CIRCUIT F-CAN TRANSCEIVER
16 1 19 WHT RED
A
A6
24
ORN
LT BLU
A
11 12 17 18
UNDER-HOOD
FUSE/RELAY BOX
DATA LINK
CONNECTOR
(DLC)
JUNCTION
CONNECTOR
JUNCTION
CONNECTOR
SEAT BELT
REMINDER
INDICATOR
SIDE
AIRBAG
CUTOFF
INDICATOR
SRS
INDICATORJUNCTION
CONNECTOR
To
SRS
UNIT ODS
UNIT
HARNESS OPDS
SENSOR
JUNCTION
CONNECTOR DASHBOARD
WIRE
HARNESS
FRONT
PASSENGER’S
WEIGHT
SENSOR
(FRONT
INNER
SIDE) FRONT
PASSENGER’S
WEIGHT
SENSOR
(REAR
INNER
SIDE) FRONT
PASSENGER’S
WEIGHT
SENSOR
(FRONT
OUTER
SIDE)FRONT
PASSENGER’S
WEIGHT
SENSOR
(REAR
OUTER
SIDE)
DASHBOARD
WIRE
HARNESS
FLOOR
WIRE
HARNESS
DASHBOARD
WIRE
HARNESS
PASSENGER’S
AIRBAG CUTOFF
INDICATOR
JUNCTION
CONNECTOR
MEMORY
ERASE
SIGNAL
(MES)
CONNECTOR
(2P)
FRONT
PASSENGER’S
SEAT
WIRE
HARNESS
(With
seat heater)
C783 C782
18P CAN
HI
CAN
LO
K-LINE SCS MES
SRS
GND (2)
SRS
GND (1)
a
08/08/21 13:55:35 61SNR030_240_0040
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24-41
(With seat heater)
RED/GRN
BLK/GRN
1
2 7 7
GRN* GRN : Shielding
G602
GRN*
RED*
GRN*
BRN* LT BLU*
ORN*
BLU*
LT GRN* YEL*
GRY* LT GRN* PUR*
GRN*
BRN*
LT BLU*
YEL* LT GRN*
BLU*
LT BLU*
LT BLU*
BRN* GRN* RED*
C203
28
16
27 3
421
15 1
221
2P 2P
2 5BLK RED
41
1
6 14
16
15
3
2
1
BLK RED GRN3P
1
2
3
3P 4P 4P
2
1 12 12
3
3
78 4
4
3
4
A 4
3
910
SRS UNIT
B 1211
GRN RED BLK
4P
1
2
ON:
BUCKLED ON:
UN-
BUCKLED
DRIVER’S
SEAT
BELT
BUCKLE
SWITCH FRONT
PASSENGER’S
AIRBAG
FIRST
INFLATOR
FRONT
PASSENGER’S
AIRBAG
SECOND
INFLATOR
DRIVER’S
AIRBAG
FIRST
INFLATOR
DRIVER’S
AIRBAG
SECOND
INFLATOR
CABLE
REEL
DASHBOARD
WIRE HARNESS
ON:
UN-
BUCKLED ON:
BUCKLED
From
ODS
UNIT
JUNCTION
CONNECTOR
DRIVER’S
SEAT
POSITION
SENSOR DRIVER’S
SEAT
WIRE HARNESS
FLOOR
WIRE
HARNESS FLOOR
WIRE
HARNESS
RIGHT
FRONT
IMPACT
SENSOR
LEFT
FRONT
IMPACT
SENSOR
ENGINE
COMPARTMENT
WIRE
HARNESS
DASHBOARD
WIRE
HARNESS FLOOR
WIRE
HARNESS
UNDER-DASH
FUSE/RELAY BOX
DRIVER’S
SEAT POSITION
SENSOR HARNESS
C602
C604 Q E
BLU or BRN wire color
can be used for the SRS circuits
that have a * mark
FRONT
PASSENGER’S
SEAT
BELT
BUCKLE
SWITCH
LA1
LA1
LFS LFS RFS RFS
LBSO LBSC
SS SS ODS
RA1
RA1 LA2
LA2
RBSC RBSO
RA2
RA2 :CANline
a
(cont’d)
08/08/21 13:55:36 61SNR030_240_0041
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24-42SRS
Circuit Diagram (cont’d)
GRN*
RED* LT BLU*
BRN* GRN*
WHT*
ORN*
YEL*BLU*
BRN*
ORN* YEL*
RED*
GRN*
PNK* BLU* 1
41 2
2P
4P
4P
4P
4P 2
3
32 8
7910 22
21 12
4P
4P
32
41
B 4
3
12
2
332
B
26
25 3
2
SRS UNIT
LEFT SIDE
IMPACT SENSOR (FIRST)
DRIVER’S
SEAT BELT
TENSIONER REAR
SAFING
SENSOR
LEFT SIDE
CURTAIN AIRBAG
INFLATOR
DRIVER’S
SEAT BELT
BUCKLE
TENSIONER
FRONT
PASSENGER’S
SEAT BELT
TENSIONER PASSENGER’S
SEAT BELT
BUCKLE
TENSIONER
LEFT SIDE
IMPACT
SENSOR
(SECOND)
FLOOR
WIRE
HARNESS2P
FLOOR
WIRE
HARNESS
LBS1
LRP
LRP RRP RRP LBP LBP RBPRBP
LBS1
LCA1 LCA1
08/08/21 13:55:36 61SNR030_240_0042
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24-43
WHT*
GRN* BLU* RED* RED*
GRY*
PUR*
LT GRN*
YEL*
BRN*
20
19
17 18
2
112
2P 2P
23
27 28
B 1
41 2
4P 2P
2
1
23 24
B SRS UNIT RIGHT SIDE
CURTAIN AIRBAG
INFLATOR
RIGHT SIDE
IMPACT
SENSOR
(SECOND)
RIGHT SIDE
IMPACT SENSOR (FIRST)
FRONT
PASSENGER’S
SIDE AIRBAG
INFLATOR
DRIVER’S
SIDE AIRBAG
INFLATOR FLOOR
WIRE
HARNESS
FLOOR
WIRE
HARNESS 2P BLU or BRN wire color
can be used for the SRS circuits
that have a * mark
LSA
LSA RSA RSA
RBS1 RBS1
RCA1
RCA1
08/08/21 13:55:37 61SNR030_240_0043
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Î(#') ’07-09 models
24-44SRS
Circuit Diagram (cont’d)
GRN
BLU YEL
124 Q
E
G504
G602
BLK
LT GRN*
BLK*
BLK*
ORN*
LT BLU*
WHT*
RED* BLU*RED*
YEL*
2 1
G506 5
22
23 13 BLU
MICURED
2
4 MICU
GRY
YEL
3
1
17 Vs
Vo
Vs
Vo
Vs
Vo
Vs
Vo BLU
BRN
5
10 15
GRY
123 3
21
LT GRN
16
11 6
GRY
BLU
GRN RED
4
914
WHT
123
321
BLK
13
83
RED
BRN MAIN CIRCUIT
VB
VA
WHT
GAUGE CONTROL MODULE (TACH)
BLK
412 SRS UNIT
ODS UNIT
7112 No. 9
(7.5 A) (7.5 A)
No. 10
No. 11
(10 A)
8
9 41
BRN
BLK
YEL
BLU GRN J
BATTERY
BAT
IG1
IGNITION SWITCH
UNDER-DASH FUSE/RELAY BOX
BLK
GRN
WHT BRN
A17
DRIVE CIRCUIT DRIVE CIRCUIT
F-CAN TRANSCEIVER
16 1 19
WHT RED
A
A6
24
ORN
LT BLU
A
11 12
17 18
UNDER-HOOD
FUSE/RELAY BOX
DATA LINK
CONNECTOR
(DLC)
JUNCTION
CONNECTOR
JUNCTION
CONNECTOR
SEAT BELT
REMINDER
INDICATOR
SIDE
AIRBAG
CUTOFF
INDICATOR
SRS
INDICATORJUNCTION
CONNECTOR
To
SRS
UNIT ODS
UNIT
HARNESS OPDS
SENSOR
JUNCTION
CONNECTOR DASHBOARD
WIRE
HARNESS
FRONT
PASSENGER’S
WEIGHT
SENSOR
(FRONT
INNER
SIDE) FRONT
PASSENGER’S
WEIGHT
SENSOR
(REAR
INNER
SIDE) FRONT
PASSENGER’S
WEIGHT
SENSOR
(FRONT
OUTER
SIDE)FRONT
PASSENGER’S
WEIGHT
SENSOR
(REAR
OUTER
SIDE)
DASHBOARD
WIRE
HARNESS
FLOOR
WIRE
HARNESS
DASHBOARD
WIRE
HARNESS
PASSENGER’S
AIRBAG CUTOFF
INDICATOR
JUNCTION
CONNECTOR
MEMORY
ERASE
SIGNAL
(MES)
CONNECTOR
(2P)
FRONT
PASSENGER’S
SEAT
WIRE
HARNESS
(With
seat heater) D 2
JUNCTION
CONNECTOR
2
C782
C783 18P CAN
HI
MES
CAN
LO
K-LINE SCS PTT
SRS
GND (2) SRS
GND (1)
8P
4P
a
08/08/21 13:55:38 61SNR030_240_0044
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24-45
(With seat heater)
RED/GRN
BLK/GRN
1
2 7 7
GRN* GRN : Shielding
G602
GRN*
RED*
GRN*
BRN* LT BLU*
ORN*
BLU*
LT GRN* YEL*
GRY* LT GRN* PUR*
GRN*
BRN*
LT BLU*
YEL* LT GRN*
BLU*
LT BLU*
LT BLU*
BRN* GRN* RED*
C203
28
16
27 3
421
15 1
221
2P 2P
2 5BLK RED
41
1
6 14
16
15
3
2
1
BLK RED GRN3P
1
2
3
3P 4P 4P
2
1 12 12
3
3
78 4
4
4
3
A 4
3
910
SRS UNIT
B 1211
GRN RED BLK
4P
2
1
ON:
BUCKLED ON:
UN-
BUCKLED
DRIVER’S
SEAT
BELT
BUCKLE
SWITCH FRONT
PASSENGER’S
AIRBAG
FIRST
INFLATOR
FRONT
PASSENGER’S
AIRBAG
SECOND
INFLATOR
DRIVER’S
AIRBAG
FIRST
INFLATOR
DRIVER’S
AIRBAG
SECOND
INFLATOR
CABLE
REEL
DASHBOARD
WIRE HARNESS
ON:
UN-
BUCKLED ON:
BUCKLED
From
ODS
UNIT
JUNCTION
CONNECTOR
DRIVER’S
SEAT
POSITION
SENSOR DRIVER’S
SEAT
WIRE HARNESS
FLOOR
WIRE
HARNESS FLOOR
WIRE
HARNESS
RIGHT
FRONT
IMPACT
SENSOR
LEFT
FRONT
IMPACT
SENSOR
ENGINE
COMPARTMENT
WIRE
HARNESS
DASHBOARD
WIRE
HARNESS FLOOR
WIRE
HARNESS
UNDER-DASH
FUSE/RELAY BOX
DRIVER’S
SEAT POSITION
SENSOR HARNESS Q E
C602
C604 BLU or BRN wire color
can be used for the SRS circuits
that have a * mark
FRONT
PASSENGER’S
SEAT
BELT
BUCKLE
SWITCH
LFS
LFS
SS RFS RFS
LBSO LBSC
SS ODS
RA1
RA1 RA2
RA2 LA1
LA1 LA2
LA2
RBSC RBSO :CANline
a
(cont’d)
08/08/21 13:55:39 61SNR030_240_0045
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24-46SRS
Circuit Diagram (cont’d)
GRN*
RED* LT BLU*
BRN* GRN*
WHT*
ORN*
YEL*BLU*
BRN*
ORN* YEL*
RED*
GRN*
PNK* BLU* 1
41 2
2P
4P
4P
4P
4P 2
3
32 8
7910 22
21 12
4P
4P
32
41
B 4
3
12
2
332
B
26
25 3
2
SRS UNIT
LEFT SIDE
IMPACT SENSOR (FIRST)
DRIVER’S
SEAT BELT
TENSIONER REAR
SAFING
SENSOR
LEFT SIDE
CURTAIN AIRBAG
INFLATOR
DRIVER’S
SEAT BELT
BUCKLE
TENSIONER
FRONT
PASSENGER’S
SEAT BELT
TENSIONER PASSENGER’S
SEAT BELT
BUCKLE
TENSIONER
LEFT SIDE
IMPACT
SENSOR
(SECOND)
FLOOR
WIRE
HARNESS2P
FLOOR
WIRE
HARNESS
LBS1
LRP
LRP RRP RRP LBP LBP RBPRBP
LBS1
LCA1 LCA1
08/08/21 13:55:39 61SNR030_240_0046
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24-47
WHT*
GRN* BLU* RED* RED*
GRY*
PUR*
LT GRN*
YEL*
BRN*
20
19
17 18
2
112
2P 2P
23
27 28
B 1
41 2
4P 2P
2
1
23 24
B SRS UNIT RIGHT SIDE
CURTAIN AIRBAG
INFLATOR
RIGHT SIDE
IMPACT
SENSOR
(SECOND)
RIGHT SIDE
IMPACT SENSOR (FIRST)
FRONT
PASSENGER’S
SIDE AIRBAG
INFLATOR
DRIVER’S
SIDE AIRBAG
INFLATOR FLOOR
WIRE
HARNESS
FLOOR
WIRE
HARNESS 2P BLU or BRN wire color
can be used for the SRS circuits
that have a * mark
LSA
LSA RSA RSA
RBS1 RBS1
RCA1
RCA1
08/08/21 13:55:40 61SNR030_240_0047
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DTC 41-1x (‘‘x’’ can be 0 thru 9 or A thru F):
Special Tools Required
YES
NO
YES
NO YES
NO
24-120SRS
DTC Troubleshooting (cont’d)
A
SRS UNIT CONNECTOR A (28P)
No Signal From the Left Front Impact Sensor
 SRS inflator simulator 07SAZ-TB4011A
 SRS simulator lead L 070AZ-SNAA300
NOTE: Before doing this troubleshooting procedure,
review SRS Precautions and Procedures (see page
24-13), General Troubleshooting Information (see page
24-22), and Battery Terminal Disconnection and
Reconnection (see page 22-68). 1. Clear the DTC memory (see page 24-23).
2. Turn the ignition switch to ON (II), and check that the SRS indicator comes on for about 6 seconds
and then goes off.
Go to step 3.
Intermittent failure, system is OK at this time.
Go to Troubleshooting Intermittent Failures
(see page 24-24). If another DTC is indicated,
troubleshoot the DTC.
3. Turn the ignition switch to LOCK (0).
4. Disconnect the negative cable from the battery, then wait at least 3 minutes.
5. Check the connections between SRS unit connector A (28P) and the SRS unit, between the engine
compartment wire harness 2P connector and the
left front impact sensor (see page 24-11), and at
connector C203 (see page 22-22).
Go to step 6.
Repair the poor connections, clear the DTC,
and retest. If DTC 41-1x is still present, go to step 6. 6. Disconnect the engine compartment wire harness
2P connector (A) from the left front impact sensor.
7. Disconnect SRS unit connector A (28P) from the SRS unit (see step 9 on page 24-21).
8. Measure the resistance between SRS unit connector A (28P) terminals No. 15 and No. 27.
There should be an open circuit or at least 1 M .
Go to step 9.
Short in the engine compartment wire
harness or dashboard wire harness; replace the
faulty harness, then clear the DTC.
Wire side of female terminals
Does the SRS indicator stay on, and is DT C 41-1x indicated?
Ar e t he connect i ons OK ? Is the resistance as specif ied?
08/08/21 13:58:25 61SNR030_240_0120
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