Acura CSX. Manual — part 690
−
02
−
−
−
−
YES
NO
YES
NO
24-77
SRS UNIT CONNECTOR B (28P)
8. Read the DTC (see page 24-22).
Go to step 9.
Open in the driver’s seat belt buckle
tensioner; replace the driver’s seat belt buckle
(see page 24-6), then clear the DTC.
9. Turn the ignition switch to LOCK (0). Disconnect the
negative cable from the battery, then wait at least 3
minutes.
10. Disconnect both side airbag 2P connectors (see
step 4 on page 24-20) and the front passenger’s
seat belt buckle tensioner 4P connector (see step 8
on page 24-21).
11. Disconnect SRS unit connector B (28P) from the
SRS unit (see step 9 on page 24-21).
12. Measure the resistance between SRS unit
connector B (28P) terminals No. 7 and No. 8. There
should be 2.0
3.0
.
Faulty SRS unit or poor connection at SRS
unit connector B (28P) and the SRS unit. Check the
connection; if the connection is OK, replace the
SRS unit (see page 24-203).
Open in the floor wire harness; replace the
floor wire harness, then clear the DTC.
Wire side of female terminals
Is DT C 27 -1x indicated?
Is the r esistance as specif ied?
08/08/21 13:56:58 61SNR030_240_0077
01
SNR9A00K791000R273XFAAT00
−
−
DTC 27-3x (‘‘x’’ can be 0 thru 9 or A thru F):
Special Tools Required
YES
NO
24-78
SRS
B
A
070AZ-SNAA200
07SAZ-TB4011A
Short to Another Wire or Decreased
Resistance in the Driver’s Seat Belt Buckle
Tensioner
• SRS inflator simulator 07SAZ-TB4011A
• SRS simulator lead K 070AZ-SNAA200
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). Disconnect the
negative cable from the battery, then wait at least 3
minutes.
4. Disconnect the floor wire harness 4P connector (A)
from the driver’s seat belt buckle tensioner
connector (B).
5. Connect the SRS inflator simulator (2
connectors) and simulator lead K to the floor wire
harness connector.
6. Reconnect the negative cable to the battery.
7. Clear the DTC memory.
Does the SRS indicator stay on, and is DT C 27 -3x
indicated?
08/08/21 13:56:58 61SNR030_240_0078
02
−
−
−
−
YES
NO
YES
NO
24-79
SRS UNIT CONNECTOR B (28P)
8. Read the DTC (see page 24-22).
Go to step 9.
Short in the driver’s seat belt buckle
tensioner; replace the driver’s seat belt buckle
(see page 24-6), then clear the DTC.
9. Turn the ignition switch to LOCK (0). Disconnect the
negative cable from the battery, then wait at least 3
minutes.
10. Disconnect both side airbag 2P connectors (see
step 4 on page 24-20) and the front passenger’s
seat belt buckle tensioner 4P connector (see step 8
on page 24-21).
11. Disconnect SRS unit connector B (28P) from the
SRS unit (see step 9 on page 24-21).
12. Disconnect the simulator lead from the floor wire
harness.
13. Measure the resistance between SRS unit
connector B (28P) terminals No. 7 and No. 8. There
should be an open circuit or at least 1 M
.
Faulty SRS unit or poor connection at SRS
unit connector B (28P) and the SRS unit. Check the
connection; if the connection is OK, replace the
SRS unit (see page 24-203).
Short in the floor wire harness; replace the
floor wire harness, then clear the DTC.
Wire side of female terminals
Is DT C 27 -3x indicated?
Is the r esistance as specif ied?
08/08/21 13:56:58 61SNR030_240_0079
01
SNR9A00K791000R278XFAAT00
−
−
DTC 27-8x (‘‘x’’ can be 0 thru 9 or A thru F):
Special Tools Required
YES
NO
24-80
SRS
B
A
070AZ-SNAA200
07SAZ-TB4011A
Short to Power in the Driver’s Seat Belt
Buckle Tensioner
• SRS inflator simulator 07SAZ-TB4011A
• SRS simulator lead K 070AZ-SNAA200
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). Disconnect the
negative cable from the battery, then wait at least 3
minutes.
4. Disconnect the floor wire harness 4P connector (A)
from the driver’s seat belt buckle tensioner
connector (B).
5. Connect the SRS inflator simulator (2
connectors) and simulator lead K to the floor wire
harness connector.
6. Reconnect the negative cable to the battery.
7. Clear the DTC memory.
Does the SRS indicator stay on, and is DT C 27 -8x
indicated?
08/08/21 13:56:58 61SNR030_240_0080
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