Acura CSX. Manual — part 701
03
04
01
−
−
−
−
YES
NO
YES
NO
24-121
SRS UNIT CONNECTOR A (28P)
SRS UNIT CONNECTOR A (28P)
B
070AZ-SNAA300
07SAZ-TB4011A
A
9. Measure the resistance between body ground and
SRS unit connector A (28P) terminals No. 15 and
No. 27, individually. There should be an open
circuit or at least 1 M
.
Go to step 10.
Short to ground in the dashboard wire
harness or the engine compartment wire harness;
replace the faulty harness, then clear the DTC.
10. Reconnect the negative cable to the battery.
11. Turn the ignition switch to ON (II).
12. Measure the voltage between body ground and
SRS unit connector A (28P) terminals No. 15 and
No. 27, individually. There should be less than 0.2 V.
Go to step 13.
Short to power in the engine compartment
wire harness or the dashboard wire harness;
replace the faulty harness, then clear the DTC.
13. Turn the ignition switch to LOCK (0).
14. Connect the SRS inflator simulator (jumper
connector) and the black lead (A) of simulator
lead L to the engine compartment wire harness 2P
connector (B).
Wire side of female terminals
Wire side of female terminals
Is the r esistance as specif ied?
Is the voltage as specif ied?
08/08/21 13:59:39 61SNR030_240_0121
06
SNR9A00K791000R421XFAAT00
−
−
−
−
−
−
YES
NO
Special Tools Required
YES
NO
YES
NO
DTC 42-1x (‘‘x’’ can be 0 thru 9 or A thru F):
24-122
24-122
SRS
SRS UNIT CONNECTOR A (28P)
15. Measure the resistance between SRS unit
connector A (28P) terminals No. 15 and No. 27.
There should be less than 1.0
.
Faulty left front impact sensor or SRS unit;
replace the left front impact sensor (see page
24-210), then clear the DTC. If the problem is still
present, replace the SRS unit (see page 24-203).
Poor connection at C203, open in engine
compartment wire harness, or open in dashboard
wire harness. Inspect C203 (see page 22-22). If it is
OK, replace the faulty harness, then clear the
DTC.
• 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
right 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 42-1x is still present, go to step 6.
No Signal From the Right Front Impact
Sensor
Wire side of female terminals
Is the r esistance as specif ied?
Does the SRS indicator stay on, and is DT C 42-1x
indicated?
Ar e the connections OK ?
08/08/21 13:59:39 61SNR030_240_0122
01
02
03
−
−
−
−
YES
NO
YES
NO
24-123
A
SRS UNIT CONNECTOR A (28P)
SRS UNIT CONNECTOR A (28P)
6. Disconnect the engine compartment wire harness
2P connector (A) from the right 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. 16 and No. 28.
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.
9. Measure the resistance between body ground and
SRS unit connector A (28P) terminals No. 16 and
No. 28, individually. There should be an open
circuit or at least 1 M
.
Go to step 10.
Short to ground in the dashboard wire
harness or the engine compartment wire harness;
replace the faulty harness, then clear the DTC.
10. Reconnect the negative cable to the battery.
11. Turn the ignition switch to ON (II).
Wire side of female terminals
Wire side of female terminals
Is the r esistance as specif ied?
Is the r esistance as specif ied?
08/08/21 13:59:40 61SNR030_240_0123
04
01
06
−
−
−
−
YES
NO
YES
NO
24-124
SRS
SRS UNIT CONNECTOR A (28P)
B
070AZ-SNAA300
07SAZ-TB4011A
A
SRS UNIT CONNECTOR A (28P)
12. Measure the voltage between body ground and
SRS unit connector A (28P) terminals No. 16 and
No. 28, individually. There should be less than 0.2 V.
Go to step 13.
Short to power in the engine compartment
wire harness or dashboard wire harness; replace
the faulty harness, then clear the DTC.
13. Turn the ignition switch to LOCK (0).
14. Connect the SRS inflator simulator (jumper
connector) and the black lead (A) of simulator
lead L to the engine compartment wire harness 2P
connector (B).
15. Measure the resistance between SRS unit
connector A (28P) terminals No. 16 and No. 28.
There should be less than 1.0
.
Faulty right front impact sensor or SRS unit;
replace the right front impact sensor (see page
24-210), then clear the DTC. If the problem is still
present, replace the SRS unit (see page 24-203).
Poor connection at C203, open in engine
compartment wire harness, or open in dashboard
wire harness. Inspect C203 (see page 22-22). If it is
OK, replace the faulty harness, then clear the
DTC.
Wire side of female terminals
Wire side of female terminals
Is the voltage as specif ied?
Is the r esistance as specif ied?
08/08/21 13:59:40 61SNR030_240_0124
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