2003 HONDA CIVIC belt

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DTC 13-3: No Signal from the Driver's Side
lmpact Sensor
Special Tools Required. sRs inflator simularor 07SAZ-TB4011A. SRS simulator lead H 07YM-S3AA100
1. Erasethe DTC memory (see p age 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 lntermittent Failures (see
page 23-261.
3. Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait for 3 minutes.
4. Check the connection between the floor wire
harness 2P connector and the driver's side impact
sensor.
ls the connection OK?
YES Go to step 5.
NO-Replace the driver's side impact sensor and/
or the floor harness, as needed. I
)
5. Disconnectthe driver's side airbag and frontpassenger's side airbag 2P connectors (see step 4
on page 23-21). Also disconnect both seat belt
buckle tensioner 4P connectors (see step 6 on page
23-22).
6. Disconnect the floor wire harness 2P connector {A}from the driver's side impact sensor.
07sAz-TB4011A
7. Connect the SRS inflator simulator (2 Q connector)
and simulator lead H to the floor wire harness.
(cont'd)
23-91

sRs
DTC Troubleshooting {cont'd)
8. Disconnect SRS unit connector B ( 18P) from the
SRS unit (see step 7 on page 23-221.
9. Check resistance between the No. 8 and No. 15
terminals of sRS unit connector B ('l8P). There
should be 0 1.0 Q.
SRS UNIT CONNECTOR B I18P)
BRN/YEL
I:fr;f;l n3
10tlllro lrz lrs | \
LT GRN/RED
Wire side of temale terminals
Is the resistance as specitied?
YES Faulty driver's side impact sensor or SRS
unit; replace lhe driver's side impact sensor (see
page 23-123). lf the problem is still present, replace
the SRS unit (see page 23-122).1
NO Open in the floor wire harness; replace the
floor wire harness.l
23-92
DTC 13-4: Faulty Power Supply to the Driver's
Side lmpact Sensor
1. Erase the DTC memory {see page 23-261.
2. Turn the ignition switch ON (ll), and check that the
SRS lndicator comes on for about 6 seconds and
then goes off.
Does the SRS indicator stay on?
YES Go to step 3.
NO-lntermittent failure, system is OK at this time.
Go to Troubleshooting Intermittent Failures (see
page 23-26).
3. Turn the ignition switch OFF. Disconnectthe
battery negative cable, and wait for 3 minutes.
4. Disconnect the driver's side airbag and front
passenger's side airbag 2P connectors (see step 4
on page 23-21). Also disconnect both seat belt
buckle tensioner 4P connectors (see step 6 on page
23-22).

sRs
DTC Troubleshooting (cont'dl
DTC 14-3: No Signal from the Front
Passenger's Side lmpact Sensor
SpecialTools Required. SRS inflator simulator 07SAZ-TB401'lA. SRS simulator lead H 07YAZ'S3AA100
1. Erasethe DTC memory (see page 23-26).
2. Tu rn the ignition switch ON (ll), and check that the
SRS indicator comes on for about 6 seconds and
then goes off.
Does the SBS 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. Disconnectthe
battery negative cable, and wait for 3 minutes.
4. Check the connection between the floor wire
harness 2P connector and the front passenger's
side lmpact sensor.
Is the connection OK?
YES-Go to step 5.
NO- Poor contact between the floor wire harness
2P connector and the front passenger's side impact
sensor; replace the front passenger's side impact
sensor and/or the floor harness, as needed.
23-94
5.Disconnectthe driver's side airbag and front
passenger's side airbag 2P connectors (see step 4
on page 23-21). Also disconnect both seat belt
buckle tensioner 4P connectors (see step 6 on page
23-22t.
Disconnect the floor wire harness 2P connector {A)
from the front passenger's side impact sensor.
07sAz-TB4o11A
7. Connect the SRS inflator simulator (2 0 connector)
and the simulator lead H to the floor wire harness.

)
8. Disconnect SRS unit connector B (18P)from the
SRS unit (see step 7 on page 23-221.
9. Check resistance between the No.9 and No. 16
terminals of SRS unit connector B (18P). There
should be 0-1.0 S2.
SRS UNIT CONNECTOR B {18PI
PNK/BLU
t-
l-u5l niFf;l \
230
10t1t5
T
GRY/RED
Wire side ol lemale 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-Open in the floor wire harness; replace the
floor wire harness. !
I
DTC 14-4: Faulty Power Supply to the Front
Passenger's Side lmpact Sensor
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-lntermittent failure, system is OK at this time.
Go to Troubleshooting Intermittent Failures (see
page 23-261.
3. Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait for 3 minutes.
4. Disconnectthe driver's side airbag and front
passenger's side airbag 2P connectors (see step 4
on page 23-21). Also disconnect both seat belt
buckle tensioner 4P connectors (see step 6 on page
23-22t.
5. Disconnect the floor wire harness 2P connector {A}from the front passenger's side impact sensor.
Disconnecl SRS unit connector B (18P) from the
SRS unit (see step 7 on page 23-22i.
(cont'd)
"-;s.\
/ \--) frl l 1
- F.,=
j
23-95

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).

JI
I
The SRS lndicator Stays On When ln "SCS"
Menu Method
NOTE:. lf you cannot retrieve DTCSwith the PGM Tester
using the SRS menu method. retrieve the flash codeswith the Tester in SCS mode {see page 23-24|,.. A new SRS unit must sense the entire system is OK
before completing its initial self-test. The most
common cause of an incomplete self-test is the
failure to replace all deployed parts after a collision,
in particular, seat belt tensioners and seat belt buckletenstoners.. An incomplete self-test prevents the PGM Tester fromretrieving DTCS, although flash codes are available in
the Tester's SCS mode.
1 . Erase the DTC memory using the MES connector(see page 23-26).
Does the SRS indicator go off while you are
erasing the DTC memory?
YES-Go to step 42.
NO Go to step 2.
Check the No. '13 { 10A) fuse in the under-dash
fuse/relay box.
lsthe f use OK?
YES--Go to step 19.
NO Go to step 3.
Replacethe No. 13 (10A) fuse.
Turn the ignition switch ON (ll), and wait for 30
seconds. Then turn the ignition switch OFF.
Check rhe No. 13 (10A) fuse.
ls the f use OK?
YES The system is OK at this time.I
NO Go to step 6.
3.
I
6. Replace the No. 13 (10A) fuse.
7. Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait for 3 minutes.
8. Disconnect the driver's airbag 4P connector (see
step 2 on page 23-21).
9. Disconnect the front passenger's airbag 4P
connector (see step 3 on page 23,21).
10. Disconnect both seat belt tensioner 2P connectors(see step 5 on page 23-221.
'11. DisconnectSRS unitconnectorA{18P)fromthe
SRS unit (see step 7 on page 23-22],.
'12. Reconnect the battery negative cable.
13. Turn the ignition switch ON (ll), and wait for 30
seconds. Then turn the ignition switch OFF.
14. Checkthe No. 13 ('10A) fuse.
ls the f use OK?
YES-Short to ground in the SRS unit; replace the
SRS unit (see page 23-122).a
NO Go to step 15.
15. Replace the No. 13 (10A) fuse.
{cont'd)
23-107

sRs
from the under-dash fuse/relav bor.
11.
18.
SRS Indicator Circuit Troubleshooting (cont'd)
'16. Disconnect dashboard wire harness B connector S
Turn the ignition switch ON {ll), and wait for 30
seconds. Then turn the ignition switch OFF,
Check the No. 13 (10A) fuse.
ls the f use OK?
YES Short to ground in dashboard wire harness
B; replace dashboard wire harness B.I
NO-Short to ground in the under-dash fuse/relay
box; replace the under-dash fuse/relay box.l
Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait for 3 minutes.
Disconnect the driver's airbag 4P connector (see
step 2 on page 23-2'l).
Disconnect the front passenger's airbag 4P
connector (see step 3 on page 23-21).
Disconnect both seat belt tensioner 2P connectors
(see step 5 on page 23-22).
Disconnect SRS unit connector A (18P) from the
SRS unit (see step 7 on page 23-22).
19.
20.
21.
22.
23-108
24.Beconnect the battery negative cable.
Connect a voltmeter between the No. 3 terminal of
SRS unit connector A (18P) and body ground. Turn
the ignition switch ON (ll), and measure the voltage.
There should be baftery voltage.
SRS UNIT CONNECTOR A (18PI
Wire side of female terminals
ls there battery voltage?
YES Go to step 29.
NO Go to step 26.
Turn the ignition switch OFF.
Disconnect dashboard wire harness B connector S
26.
27.
PNK
from the under-dash fuse/relav box.

sRs
Component Replacement/lnspection After Deployment
NOTE: Before doing any SRS repairs. use the PGM
Tester SRS menu method to check for DTCS; refer to the
DTC Troubleshooting Index for the less obvious
deployed parts (seat beit tensioners, front sensors, side
airbag sensors, etc.)
After a collision where the seat belt tensioners
deployed, replace these items:' Seat belt tensioners. Seat belt buckle tensioners. SRS unit. Front impact sensors
After a collision where the front airbag(s) deployed.
replace these items:. SRS unit. Deployed airbag(s). Seat belt tensioners. Seat belt buckle tensioners. Front impact sensors
After a collision where the side airbag{s) deployed,
replace these items:. SRS unit. Deployed side airbag(s). Side impact senso(s)for the side(s) that deployed
During the repair process, inspect these areas:
. lnspect allthe SRS wire harnesses. Replace, don't
repair, any damaged harnesses.. Inspectthecable reelfor heatdamage. lf there is any
damage, replace the cable reel.
Afterthe vehicle is completely repaired, turn the
ignition switch ON (ll). lf the SRS indicator comes on for
about 6 seconds and then goes off, the SRS airbag
system is OK. lf the indicator does not function properly,
use the PGM Tester SRS Menu Method to read the DTC
(see page 23-23). lf this doesn't retrieve any codes, use
the Tester's SCS menu method (see page 23-24). lf you
still cannot retrieve a code, go to SRS Indicator Circuit
Troubleshooting.
23-112
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