2003 HONDA CIVIC Harness

sRs
DTC Troubleshooting (cont'd)
DTG 12-1: Open or Increased Resistance 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 SBS indicator stay on?
YES Go to step 3.
NO - Intermittent failu re, system is OK at this time.
Go to Troubleshooting lntermittent Failures (see
page 23-26).
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.
23-86
IJ
7.
'1 0.
9.
Reconnect the battery negative cable.
Erase the DTC memory.
Read the DTC.
ls DTC 12-l indicated?
YES Go to step L
NO-Open or increased resistance in the front
passenger's side airbag inflator; replace the front
passenger's side airbag (see page 23-1 15).1
Turn the ignition switch OFF. Disconnect the
battery negative cable. and wait for 3 minutes.
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).

I
1't .
12.
Disconnect SRS unit connector B ('l8P) from the
SRS unit (see step 7 on page 23-22). Do not
disconnect the special tool from the floor wire
harness 2P connector.
Check resistance between the No.7 and No. 18
terminals ofSRS unitconnector B (18P). There
should be 2.0 3.0 (J.
SRS UNIT CONNECTOR B {18P)
WHT/GRN
Wire side of female terminals
ls the resistance as specified?
YES Faulty SRS unit or poor contact at SRS unit
connector B ( l8P) and the SRS unit. Check the
connection; lf the connection is OK, replace the
SRS unit (see page 23-1221.a
NO Open or increased resistance in the floor wire
harness; replace the floor wire harness.I
I
WHT/RED
DTC 12-3: Short to Another Wire or
Decreased Resistance 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 p age 23-261.
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 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).
Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait for 3 minutes.
Disconnect the floor wire harness 2P connector (A)
from the front passenger's side airbag.
4.
07xAz-s1A0200
5. Connect the SRS inflator simulator (2 0 connector)
and simulator lead E to the f loor wire harness.
(cont'd)
23-87

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.

\
6. Reconnect the battery negative cable.
7. Erase the DTC memory.
8. Read the DTC.
ls DTC 12-4 indicated ?
YES Go to step 9.
NO-Short to power in the front passenger's side
airbag inflator; replace the front passenger's side
airbag (see page 23-115). t
9. Turn the ignition swilch OFF. Disconnectthe
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 23-22l,.
t
11.Disconnect SRS unit connector B (18P) from the
SRS unit (see step 7 on page 23-221.
Turn the ignition switch ON (ll).
Check for voltage between the No. 7 terminal of
SRS unit connector B ( l8P) and body ground, and
between the No. 18 terminal and body ground.
There should be 0.5 V or less.
SRS UNIT CONNECTOR B I18P)
WHT/GRN
ls the voltage as specified?
YES Faulty SRS unil; replace the SRS unit (see
page 23-1221 .a
NO Short to power in the floor wire harness;
replace the floor wire harness.l
1?
13.
23-89

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

)
)
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).

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