Circuit HONDA CIVIC 2003 7.G Workshop Manual

sRs
DTC Troubleshooting (cont'dl
6. Reconnect the battery negative cable.
7, Erase the DTC memory.
8. Read the DTC.
ls DTC 12-3 indicated?
YES-Go to step I
NO Short to another wire in the front passenger's
side airbag inflator; replace the front passenger's
side airbag (see page 23-ll5).1
9. Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait for 3 minutes.
10. Disconnect the driver's side airbag 2P connector
(see step 4 on page 23-21) and both seat belt buckle
tensioner 4P connectors (see step 6 on page 23-22).
'!1. Disconnect the specialtoolfrom the floor wire
harness 2P connector.
12. Disconnect SRS unit connector B ('lSPlfrom the
SRS unit {see step 7 on page 23-221.
13. Check resistance between the No.7 and No. 18
terminals of sRS unit connector B (18P). There
should be an open circuit, or at least 1 M 0.
SRS UNIT CONNECTOR B I18P)
WHT/RED
-r-'r-Jl' 8lel n
i['tl,Bl S-T
236
10ll15
WHT/GRN
Wire side of {emale terminals
ls the resistance as specilied?
YES Faulty SRS unit; replace the SRS unit {seepage 23-1221.a
NO Short to anolher wire in the f loor wire
harness; replace the floor wire harness.I
23-88
\.J
DTC 12-4: Short to Power in Front Passenger's
Side Airbag Inf lator
Special Tools Required. sRS inflator simulator 07sAz-TB4011A. SRS simulator lead E 07XM-S140200
1. Erase the DTC memory (see page 23-26).
2. Turn the ignition switch ON (ll), and check thatthe
SRS indicator comes on for about 6 seconds and
then goes off.
Does the SRS indicator stay on?
YES-Go to step 3.
NO- Intermittent failure, system is OK at this time.
Go to Troubleshooting Intermittent Failures {see
page 23-26).
3. Turn the ignition switch OFF. Disconnect the
banery negative cable, and wait for 3 minutes.
4. Disconnect the floor wire harness 2P connector (A)
from the front passenger's side airbag.
07xAz-s1A0200
5. Connect the SRS inflator simulator (2 Q connector)
and simu lator lead E to the floor wire harness.

sRs
DTC Troubleshooting (cont'dl
DTC 12-5: Short to Ground in Front
Passenger's Side Airbag Inflator
SpecialTools Required. SRS inflator simulator 07SAZ-T84011A. SRS simulator lead E o7XAZ-S140200
1. Erase the DTC memory (see page 23-26).
2. Turn the ignition switch ON (ll), and check that the
SRS indicator comes on for about 6 seconds and
then goes off.
Does the SRS indicator stay on?
YES-Go to step 3.
NO Intermittent failure, system is OK at this time.
Go to Troubleshooting Intermittent Failures (see
page 23-261.
3. Turn the ignition switch OFF. Disconnectthe
battery negative cable, and wait for 3 minutes.
4. Disconnect the floor wire harness 2P connector (A)
from the front passenger's side airbag.
07xAz-s1A0200
5. Connect the SRS inflator simulator (2 Q connector)
and simulator lead E to the floor wire harness.
23-90
.t
6. Reconnectthe battery negative cable.
7. Erase the DTC memory.
8. Read the DTC.
ls DTC 12-5 indicated?
YES Go to step 9.
NO-Short to ground in the front passenger's side
airbag inflator; replace the front passenger's side
airbag (see page 23-1 15).1
9. Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait for 3 minutes.
10, Disconnectthe driver's side airbag 2P connector
(see step 4 on page 23-211 and both seat belt buckle
lensioner 4P connectors (see step 6 onpage23-22).
11. Disconnect SRS unit connector B (18P)from the
SRS unit (see step 7 on page 23-22).
12. Check resistance between the No. 15 and No. 18
terminals of SRS unit connector B (18P) and
between the No. 16 and No. 18 terminals. Then
check resistance between the No. 18 terminal and
body ground. There should be an open circuit, or at
least 1 M Q.
{
SRS UNIT CONNECTOR B {18PI
23678
1011t6171E
LT GRN/REDdi 116\l9Y9
GRY/RED
o
Wire side of female terminals
WHT/GRN
ls the resistance as specified?
YES Faulty SRS unit; replace the SRS unit (see
page 23-1221.a
NO-Short to ground in the floor wire harness;
replace the floor wire harness.l
I

t
5. Disconnect the floor wire harness 2P connector (A)
from the driver's side impact sensor.
Disconnect SRS unit connector B (18P) from the
SRS unit (see step 7 on page 23-22)
Check resistance between the No. 8 terminal of
SRS unit connector B (18P) and body ground. There
should be an open circuit, or at least 1 M Q .
1.
I
SRS UNIT CONNECTOR B {18PI
Wire side of female te.minals
ls the resistance as specitied?
YES-Go to step 8.
NO-Short to ground in the floor wire harness;
replace the floor wire harness.I
BRN/YEL
8. Check resistance between lhe No.8 and No. l5
terminals of SRS unil connector B (18P). There
should be an open circuit, or at least 1 M 0 .
SRS UNIT CONNECTOR B {18P'
BRN/YEL
I
flliT;l n23
10111tr6l1tf;l \
LT GRN/RED
Wire side oI female terminals
ls the resistance as specitied?
YES-Faulty driver's side impact sensor or SRS
unit; replace the driver's side impact sensor (see
page 23-1251.lf the problem is still present, replace
the SRS unit (see page23-1221.a
NO- Short in the floor wire harness; replace the
floor wire harness.I
23-93

sRs
DTG Troubleshooting (cont'd)
7. Check resistance between the No. 9 terminal of
SRS unit connector B (18P) and body ground. There
should be an ooen circuit, or at least 1 N4 Q.
SRS UNIT CONNECTOR B {18PI
Wire side of female terminals
ls the tesistance as specilied?
YES Go to step 8.
NO-Short to ground in the floor wire harness;
replace the floor wire harness.l
Check resistance between the No.9 and No. 16
terminals of SRS unit connector B (18P). There
should be an open circuit, or at least 1 M O .
SRS UNIT CONNECTOR B (18P)
PNK/BLU
_-r'18 sl /itltlis-l \
236
10tl
GRY/RED
Wire side ot female terminals
ls the resistance as specified?
YES-Faulty front passenger's side impact sensor
or SRS unit; replace the front passenger's side
impact sensor {see page 23-125). lf the problem is
still present, replace the SRS unit (see page 23-122).
I
NO Short in the floor wire harness; replace the
floor wire harness.l
PNK/BLU
23-96
7. Turn the ignition switch ON (ll).
DTC 15-1: Faulty OPDS Unit
NOTE:. An incorrect OPDS unit can cause DTC 15-1.. A new (uninitialized) OPDS unit installed with a faulty
OPDS sensor can cause DTC 15-1.. lf you install a new OPDS unit and a new SRS unit at
the same time, initialize the OPDS manually (see
page 23-27), do not use the Honda PGM Tester.
1. Make sure nothing is on the front passenger's seat.
2. Initialize the OPDS unit (see page 23-27).
3. Erase the DTC memory (see page 23-26]'.
4. Read the DTC.
Is DTC 15-1 indicated?
YES Go to step 5.
NO Intermittent failure, system is OK at this time.
Go to Troubleshooting Intermittent Failures (see
page 23-26).
Check the No. 9 (10A) fuse in the under-dash fuse/
relay Dox,
ls the tuse OK?
YES Go to step 6.
NO Go to step 9.
Disconnect OPDS unit harness 8P connector (A)
from the OPDS unit (A) (see page 23-124).

)
)
8. Check for voltage between the No. 4 terminal of
OPDS unit harness 8P connector and body ground.
There should be battery voltage.
OPDS UNIT HARNESS 8P CONNECTOR
Wire side of female terminals
ls there battery voltage?
YES-Go to step 16.
NO Open in the floor wire harness or OPDS unit
harness; replace the faulty harness.I
Replace the No.9 (10A)fuse in the under-dash
fuse/relay box.
Turn the ignition switch ON (ll) for 30 seconds, then
turn it off.
Check the No. 9 (10A)fuse.
ls the tuse OK?
YES lntermittent failure, system is OK at this time.
Go to Troubleshooting Intermiftent Failures (see
page 23-26).
NO Go to step 12.
Replace the No. 9 ('l0A) fuse.
9.
10.
11.
)
14.
to.
11.
13. Disconnect OPDS unit harness 8P connector (A)
from the OPDS unit.
Turn the ignition switch ON (ll) for 30 seconds, then
turn it off.
Check the No. 9 (10A) fuse.
ls the f use OK?
YES Short to ground in the OPDS unit; replace the
OPDS unit (see page 23-1241.1
NO-Short to ground in the No. 9 (10A) fuse circuit(floor harness, or OPDS harness); replace the
affected harness.I
Turn the ignition switch OFF.
Check resistance between the No.8 terminal of
OPDS unit harness 8P connector and body ground.
There should be 0 '1.0 Q .
OPDS UNIT HARNESS sPCONNECTOR
l4V-'l^l
TVjEl#BLK
@I
Wire side of female terminals
ls the resistance as specified?
YES Go to step 18.
NO Open in the floor wire harness or OPDS unit
harness, or poor ground (G551). lf G551 is OK,
replace the faulty harness.I
(cont'd)
23-97

sRs
18.
19.
20.
DTC Troubleshooting (cont'dl
Turn the ignition switch OFF. Disconnect the
battery negative cable. and wait for 3 minutes.
Disconnect both side airbag connectors (see step 4
on page 23-21)and both seat belt buckletensioner
4P connectors (see step 6 on page 23-22).
Disconnect SRS unit connector B (18P) from the
SRS unit (see step 7 on page 23-221.
Check resistance between the No. 3 terminal of
SRS unit connector B (18P) and body ground. There
should be an oDen circuit, or at least 1 MQ .
SRS UNIT CONNECTOR B I18PI
Wire side ot temale terminals
ls the resistance as specified?
YES- Go to step 22.
NO Short to ground in the floor wire harness or
OPDS unit harness; replace the faulty harness.l
GRN/ORN
23-98
22. Check resistance between the No. 3 terminal of
SRS unit connector B (18P) and the No. 7 terminal
of OPDS unit harness 8P connector. There should
be0 1.0Q.
SRS UNIT CONNECTOR B (18PI
GRN/ORN
Wire side of female terminals
OPOS UNIT HARNESS 8P CONNECTOR
24.
BLU
Wire side of female terminals
ls the resistance as specitied?
YES Go to step 23.
NO Open in the floor wire harness or in the OPDS
unit harness; replace the faulty harnessl
Reconnect the baftery negative cable.
Turn the ignition switch ON (ll).

J
25. Check for voltage between the No. 3 terminal of
SRS unit connector B (18P) and body ground. There
should be 0.5 V or less.
SRS UNIT CONNECTOR B (18P)
Wire side of temale terminals
ls the voltage as specilied?
YES Go to step 26.
NO Short to power in the floor wire harness or in
the OPDS unit harness; replace the faulty
harness.l
Replace the OPDS unit (see page 23-'124), then
initialize the system (see page 23-27).
Erase the DTC memory, then check for DTC 15-1.
ls DTC 15-l indicated?
YES Replace the SRS unit (see page 23-122).1
NO The system is OK.l
26.
27.
PNK
DTC 15-2: Faulty Side Airbag Cutoff Indicator
Circuit
1. Make sure nothing is on the front passenger's seat.
2. Erase the DTC memory (see page 23-26]-.
3. Turn the ignition switch ON (ll),andcheckthatthe
SRS indicator comes on for about 6 seconds and
then goes off.
Does the SRS indicator stay on?
YES-Turn the ignition switch OFF, and go to step
NO Intermittent failure, system is OK at this time.
Go to Troubleshooting Intermittent Failures (see
page 23-26).
NOTE:This DTC may have been caused by turning
the ignition switch ON (ll)with the gauge assembly
disconnected.
Turn the ignition switch ON (ll), and checkthatthe
side airbag cutoff indicator comes on.
Does the side airbag cutoft indicator come on?
YES Go to step 5.
NO Go to step 6.
Make sure the side airbag cutoff indicator goes off
after 5 seconds.
Does the side airbag cutoff indicator go otf after 5
seconds?
YES Faulty OPDS unit or SRS uniu replace the
OPDS unit (see page 23-1241. lf the problem is still
present, replace the SRS unit (see page 23-122).)
NO Go to step 32.
Turn the ignition switch OFF.
{cont'd)
23-99

sRs
DTC Troubleshooting (cont'd)
7. Check the No. 10 (7.5A)fuse in the under-dash
fuse/relay box.
ls the f use OK?
YES Go to step 8.
NO Replace the fuse, then turn the ignition switch
ON (ll). lf the fuse blows again, check for a short in
the No. 10 {7.5A) fuse circuit (ECM wire harness.
floor harness, or OPDS harness).1
8. Disconnect the OPDS unit harness 8P connector (A)
from the OPDS unit (see page 23-124).
Turn the ignition switch ON (ll).
Check for voltage between the No. 3 terminal of the
OPDS unit harness 8P connector and body ground.
There should be battery voltage.
OPDS UNtT HARNESS 8P CONNECTOR
Wire side of female terminals
ls there battety voltage?
YES Go to step 11.
NO Go to step 23.
9.
10.
23-100
11.
12.
14.
Turn the ignltion switch OFF.
Disconnect the dashboard wire harness 17P
connector K from the under-dash fuse/relay box,
Turn the ignition switch ON (ll).
Check for voltage between the No. 3 terminal of the
OPDS unit harness 8P connector and body ground.
There should be 0.5 V or less.
OPDS UNIT HABNESS 8P CONNECTOR
Wire side of lemale terminals
ls the voltage as specitied?
YES-Faulty OPDS unit; replace the OPDS unit (see
page 23-124) .a
NO-Go to step 15.

Check for voltage between the No. 2 terminal ofgauge assembly connector B (22P) and bodyground. There should be battery voltage.
GAUGE ASSEMBLY CONNECTOR B {22P)
Wire side of female terminals
ls there battery voltage?
YES Faulty side airbag cutoff indicator circuit;
replace the gauge assembly.l
NO Open in dashboard wire harness A; replace
dashboard wire harness A.I
YEL
12345X68910
1t12IJ,/1,/1,/)112122
\,
32.
33.
35.
36.
34.
Turn the ignition switch OFF.
Disconnect the OPDS unit harness 8P connector (A)
from the OPDS unit (see page 23- 124).
Turn the ignition switch ON (ll).
Does the slde airbag cutotf indicator come on?
YES Go to step 35.
NO Faulty OPDS unit; replace the OPDS unit.l
Turn the ignition switch OFF.
Remove the gauge assembly (see page 22-64).
Then disconnect gauge assembly connector A from
the gauge assembly.
(cont'd)
23-103

sRs
DTG Troubleshooting (cont'dl
37. Check resistance between the No. 15 terminal of
gauge assembly connector A (22P) and body
ground. There should be an open circuit, or at least
1M0.
GAUGE ASSEMBLY CONNECTOR A I22PI
ls the resistance as specified?
YES-Short to ground in the side airbag cutoff
indicator circuit; replace the gauge assembly.l
NO Short to ground in the dashboard wire
harness A, floor wire harness, or OPDS unit
harness; replace the faulty harness.l
Wire side of female terminals
23-104
J
DTC 15-3: Faulty OPDS Sensor
1. Erase the DTC memory {see page 23-261.
2. Turn the ignition switch ON (ll), and check that the
SRS indicator comes on for about 6 seconds and
then goes off.
Does the SRS indicator stay on?
YES-Go to step 3.
NO Intermittent failure, system is OK at this time.
Go to Troubleshooting Intermittent Failures (see
page 23-26).
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 15-3. lf one of
these devices was used, erase the DTC, operate the
device near the seat-back, and recheck for DTCs. lf
DTC 15-3 is reset, erase it, and do not use the
device near the seat-back.
3.
4.
Check the connection at the OPDS sensor harness
connector and the OPDS unit connector.
Are the connections OK?
YES-Go to step 4.
NO Reconnect the OPDS sensor harness
connector, and clear the DTC.I
Replace the OPDS sensor/seat-back foam (see page
20-141, and initialize the OPDS (see page 23-27).
Erase the DTC memory, then check for DTC 15-3.
ls DTC 15-3 indicated?
YES Replace the OPDS unit (see page 23-1241.a
NO The system is OK.l
{