2006 ACURA CSX ignition

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YES
NO
YES
NO YES
NO
YES
NO
YES
NO
DTC 85-4x, 85-5x (‘‘x’’ can be 0 thru 9 or A
thru F), 85-63, 85-64:
24-16624-166SRS
DTC Troubleshooting (cont’d)
ODS UNIT HARNESS 18P CONNECTOR
BLU
ODS UNIT HARNESS 18P CONNECTOR LT GRNBLU
24. Measure the resistance between ODS unit harness
18P connector terminal No. 11 and body ground.
There should be an open circuit or at least 1 M .
Go to step 25.
Short to ground in the ODS unit harness;
replace the ODS unit harness, then clear the DTC.
25. Measure the resistance between ODS unit harness 18P connector terminals No. 11 and No. 16. There
should be an open circuit or at least 1 M .
Faulty ODS unit; replace the ODS unit
(see page 24-209), then clear the DTC.
Short in the ODS unit harness; replace the
ODS unit harness, then clear the DTC. NOTE: Before doing this troubleshooting procedure,
review SRS Precautions and Procedures (see page
24-13) and General Troubleshooting Information
(see page 24-22).
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. Initialize the ODS unit (see page 24-26).
4. Turn the ignition switch to ON (II), and check that the SRS indicator comes on for about 6 seconds
and then goes off.
The system is OK.
Go to step 5.
5. Replace the ODS unit (see page 24-209), then clear the DTC.
6. Turn the ignition switch to ON (II), and check that the SRS indicator comes on for about 6 seconds
and then goes off.
The system is OK.
Replace the SRS unit (see page 24-203).
Internal Failure of the
ODS Unit
Wire side of female terminals
Wire side of female terminals
Is the resistance as specif ied?
Is the resistance as specif ied? Does t he SRS i nd i cat or st ay on, and i s DT C 85 -4x ,
85-5x, 85-63, or 85-64 indicated?
Does the SRS indicator go of f ?Does the SRS indicator go of f ?
08/08/21 14:00:55 61SNR030_240_0166
ProCarManuals.com
DYNOMITE -2009-

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DTC 85-71, 85-78: DTC 85-79:
YES
NO
YES
NO
YES
NO YES
NO
YES
NO
24-16724-167
ODS Unit Not Initialize
OPDS Sensor Initial Check Failure
NOTE: Before doing this troubleshooting procedure,
review SRS Precautions and Procedures (see page
24-13) and General Troubleshooting Information
(see page 24-22).
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. Initialize the ODS unit (see page 24-26).
4. Turn the ignition switch to ON (II), and check that the SRS indicator comes on for about 6 seconds
and then goes off.
The system is OK.
Go to step 5.
5. Replace the ODS unit (see page 24-209), then clear the DTC.
6. Turn the ignition switch to ON (II), and check that the SRS indicator comes on for about 6 seconds
and then goes off.
The system is OK.
Replace the SRS unit (see page 24-203). NOTE: Before doing this troubleshooting procedure,
review SRS Precautions and Procedures (see page
24-13) and General Troubleshooting Information
(see page 24-22).
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, the system is OK at this
time. Go to Troubleshooting Intermittent Failures
(see page 24-24).
3. Turn the ignition switch to LOCK (0).
4. Make sure nothing is on the front passenger’s seat.
5. Clear the DTC memory (see page 24-23).
6. 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 7.
Intermittent failure, the system is OK at this
time. Go to Troubleshooting Intermittent Failures
(see page 24-24).
(cont’d)
Does the SRS indicator stay on, and is DT C 85-71or 85 -7 8 i nd i cat ed ?
Does the SRS indicator go of f ?Does the SRS indicator go of f ? Does the SRS indicator go of f ?
Does the SRS indicator go of f ?
08/08/21 14:00:55 61SNR030_240_0167
ProCarManuals.com
DYNOMITE -2009-

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YES
NO
YES
NO
DTC 86-1x (‘‘x’’ can be 0 thru 9 or A thru F):
DTC 86-2x (‘‘x’’ can be 0 thru 9 or A thru F):
24-16824-168SRS
DTC Troubleshooting (cont’d)
7. Initialize the ODS unit (see page 24-26).
8. Turn the ignition switch to ON (II), and check that
the SRS indicator comes on for about 6 seconds
and then goes off.
Replace the ODS unit (see page 24-209), then
clear the DTC. If the problem is still present, replace
the OPDS sensor/seat-back (see page 20-123).
Intermittent failure, the system is OK at this
time. Go to Troubleshooting Intermittent Failures
(see page 24-24). NOTE: Before doing this troubleshooting procedure,
review SRS Precautions and Procedures (see page
24-13) and General Troubleshooting Information
(see page 24-22).
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.
NOTE: Aftermarket devices (fluorescent lights,
laptop computers, etc.) used near the front
passenger’s seat-back can interfere with the seat-
back sensors and cause a false DTC 86-1x or 86-2x.
If one of these devices was used, clear the DTC,
operate the device near the seat-back, and recheck
for DTCs. If DTC 86-1x or 86-2x is set, clear it, and
do not use the device near the seat-back.
Faulty OPDS Seat-Back Sensor
Faulty OPDS Seat Support Sensor
Does the SRS indicator go of f ?
Does the SRS indicator stay on, and is DT C 86-1xor 86-2x indicated?
08/08/21 14:00:55 61SNR030_240_0168
ProCarManuals.com
DYNOMITE -2009-


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YES
NO
YES
NO YES
NO
DTC 92-1x (‘‘x’’ can be 0 thru 9 or A thru F):
24-16924-169
A
B
3. Check the connection at the OPDS sensor harness
connectors (A) and the ODS unit harness 18P
connector (B).
Go to step 4.
Repair the poor connection, then clear the
DTC.
4. Replace the OPDS sensor/seat-back foam (see page 20-123), and initialize the ODS unit (see page 24-26),
then clear the DTC.
5. Clear the DTC memory, then check for DTC 86-1x or 86-2x.
Replace the ODS unit (see page 24-209), then
clear the DTC.
The system is OK. 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 passenger’s airbag cutoff indicator 4P connector (see page 24-212).
(cont’d)
Open in the Passenger’s Airbag Cutoff
Indicator
I s t he connect i on OK ?Is DT C 86-1x or 86-2x indicated? Does the SRS indicator stay on, and is DT C 92-1x
indicated?
08/08/21 14:00:55 61SNR030_240_0169
ProCarManuals.com
DYNOMITE -2009-


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DTC 92-2x (‘‘x’’ can be 0 thru 9 or A thru F):
24-17024-170SRS
DTC Troubleshooting (cont’d)
SRS UNIT CONNECTOR A (28P)
5. Disconnect SRS unit connector A (28P) from the
SRS unit (see step 9 on page 24-21).
6. Reconnect the negative cable to the battery.
7. Turn the ignition switch to ON (II).
8. Measure the voltage between SRS unit connector A (28P) terminal No. 13 and body ground. There
should be less than 0.2 V.
Faulty SRS unit or passenger’s airbag cutoff
indicator; replace the passenger’s airbag cutoff
indicator (see page 24-212), then clear the DTC. If
the problem is still present, replace the SRS unit
(see page 24-203).
Short to power in the dashboard wire
harness; replace the dashboard wire harness, then
clear the DTC. 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 passenger’s airbag cutoff indicator 4P connector (see page 24-212).
5. Disconnect SRS unit connector A (28P) from the SRS unit (see page 24-21).
Open or Short to Ground in the Passenger’s
Airbag Cutoff Indicator
Wire side of female terminals
Is the voltage as specif ied? Does the SRS indicator stay on, and DT C 92-2x
indicated?
08/08/21 14:00:55 61SNR030_240_0170
ProCarManuals.com
DYNOMITE -2009-



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YES
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YES
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YES
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DTC A1-1x (‘‘x’’ can be 0 thru 9 or A thru F):
24-17124-171
SRS UNIT CONNECTOR A (28P)
PASSENGER’S AIRBAG CUTOFF
INDICATOR 4P CONNECTOR BLU
SRS UNIT CONNECTOR A (28P)
6. Measure the resistance between SRS unitconnector A (28P) terminal No. 13 and passenger’s
airbag cutoff indicator 4P connector terminal No. 4.
There should be less than 1.0 .
Go to step 7.
Open in the dashboard wire harness; replace
the dashboard wire harness, then clear the DTC.
7. Measure the resistance between SRS unit connector A (28P) terminal No. 13 body ground.
There should be an open circuit or at least 1 M .
Check for a faulty SRS unit or passenger’s
airbag cutoff indicator; replace the passenger’s
airbag cutoff indicator (see page 24-212), then clear
the DTC. If the problem is still present, replace the
SRS unit (see page 24-203).
Short to ground in the dashboard wire
harness; replace the dashboard wire harness, then
clear the DTC. 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 wait for 10 seconds.
3. Read the DTC (see page 24-22).
Go to step 4.
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.
4. Turn the ignition switch to LOCK (0).
5. Check the No. 9 (7.5 A) fuse in the under-dash fuse/ relay box.
Go to step 6.
Replace the fuse, then turn the ignition switch
to ON (II). If the fuse blows again, check for a short
in the No. 9 (7.5 A) fuse circuit (dashboard wire
harness, floor wire harness, front passenger’s seat
wire harness (with seat heater), or ODS unit
harness), then clear the DTC.
6. Disconnect the negative cable from the battery, then wait at least 3 minutes.
7. Disconnect the SRS unit connector A (28P) from the SRS unit (see step 9 on page 24-21).
8. Reconnect the negative cable to the battery.
9. Turn the ignition switch to ON (II).
(cont’d)
Faulty Power supply (VA Line)
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is the resistance as specif ied?
Is the resistance as specif ied? I s DT C A1-1x i nd i cat ed ?
IsthefuseOK?
08/08/21 14:00:56 61SNR030_240_0171
ProCarManuals.com
DYNOMITE -2009-




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24-172SRS
DTC Troubleshooting (cont’d)
SRS UNIT CONNECTOR A (28P)
J
SRS UNIT CONNECTOR A (28P)
UNDER-DASH
FUSE/RELAY BOX
CONNECTOR J (4P)
10. Connect a voltmeter between SRS unit connector A
(28P) terminal No. 17 and body ground. Turn the
ignition switch to ON (II), and measure the voltage.
There should be battery voltage when the ignition
switch is ON (II).
Faulty SRS unit or poor connection at SRS
unit connector (A) 28P and the SRS unit. Check the
connection between the connector and the SRS
unit. If the connection is OK, replace the SRS unit
(see page 24-203).
Go to step 11. 11. Turn the ignition switch to LOCK (0).
12. Disconnect under-dash fuse/relay box connector J
(4P).
13. Measure the resistance between SRS unit connector A (28P) terminal No. 17 and under-dash
fuse/relay box connector J (4P) terminal No. 4.
There should be less than 1.0 .
Open in the under-dash fuse/relay box or
poor contact between connector J (4P) and the
under-dash fuse/relay box; check the connection. If
the connection is OK, replace the under-dash fuse/
relay box (see page 22-66), then clear the DTC.
Open in the dashboard wire harness; replace
the dashboard wire harness, then clear the DTC.
Wire side of female terminals
Wire side of female terminals
Is there battery voltage? Is the resistance as specif ied?
08/08/21 14:00:56 61SNR030_240_0172
ProCarManuals.com
DYNOMITE -2009-


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DTC A2-1x (‘‘x’’ can be 0 thru 9 or A thru F):
YES
NO
YES
NO
24-173
SRS UNIT CONNECTOR A (28P)
Faulty Power Supply (VB Line)
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. Check the No. 11 (10 A) fuse in the under-dash fuse/relay box.
Go to step 2.
Replace the fuse, then turn the ignition switch
ON (II). If the fuse blows again, check for a short to
ground in the under-dash fuse/relay box No. 11
(10 A) fuse line, in the dashboard wire harness;
replace the under-dash fuse/relay box (see page
22-66), then clear the DTC.
2. Turn the ignition switch to LOCK (0). Disconnect the negative cable from the battery, then wait at least 3
minutes.
3. Disconnect SRS unit connector A (28P) from the SRS unit (see step 9 on page 24-21).
4. Reconnect the negative cable to the battery. 5. Connect a voltmeter between SRS unit connector A
(28P) terminal No. 18 and body ground. Turn the
ignition switch to ON (II), and measure the voltage.
There should be battery voltage when the ignition
switch is on.
Faulty SRS unit or poor contact at SRS unit
connector A (28P) and the SRS unit; check the
connection. If the connection is OK, replace the
SRS unit (see page 24-203).
Go to step 6.
(cont’d)
Wire side of female terminals
IsthefuseOK? Is there battery voltage?
08/08/21 14:00:56 61SNR030_240_0173
ProCarManuals.com
DYNOMITE -2009-