2003 HONDA CIVIC Body

sRs
13.
14.
DTC Troubleshooting (cont'd)
Disconnect SRS unit connector A (18P) from the
SRS unit (see step 7 on page 23-221.
Disconnect the special tool from dashboard wire
harness B.
Reconnect the battery negative cable.
Turn the ignition switch ON (ll).
Check for voltage between the No. 4 terminal of
SRS unit connector A (18P) and body ground, the
No. 13 terminal and body ground, the No. 5
terminal and body ground, and the No. 14 terminal
and body ground. There should be 0.5 V or less.
SRS UNIT CONNECTOB A {18PI
Wire side o{ {emale terminals
ls the voltage as specified?
YES Faulty SRS uniu replace the SRS unit (see
page 23-1221 .a
NO-Short to power in dashboard wire harness B;
replace dashboard wire harness B. !
15.
to.
23-46
\J
{
DTC 2-5: Short to Ground in Front Passenger's
Airbag Inflator
SpecialTools Required. SRS inf lator simulator 07SAZ-T84011A. SRS simulator lead F 07XAZ-S230100
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 {seepage 23-261.
3. Turn the ignition switch OFF. Disconnectthe
battery negative cable, and wait for 3 minutes.
4, Disconnect the front passenger's airbag 4P
connector (A) from dashboard wire harness B.
07saz-T84011A
07xAz-s230100
Connect the SRS inflator simulator (2 Q
connectors) and the simulator lead F to dashboard
wire harness B.
4
5.

I
7.
11.
9.
10.
Reconnect the battery negative cable.
Erase the DTC memory.
Read the DTC.
ls DTC 2-5 indicated?
YES-Go to step 9.
NO-Shon to ground in the front passenger's
airbag inflator; replace the front passenger's airbag
(see page 23-1 14).1
Turn the ignition switch OFF. Disconnectthe
battery negative cable, and wait for 3 minutes.
Disconnect the driver's airbag 4P connector from
the cable reel {see step 2 on page 23-21).
Disconnect both seat belt tensioner 2P connectors
from the floor wire harness (see step 5 on page 23-
22).
I
I
I
12.
13.
't 4.
Disconnect SRS unit connector A (18P) from the
SRS unit (see step 7 on page 23-221.
Disconnectthe special tool from dashboard wire
harness B.
Check resistance between the No. 4 terminal of
SRS unit connector A (18P) and body ground, the
No. 13 terminal and body ground. the No. 5
terminal and body ground, and the No. 14 terminal
and body ground. There should be an open circuit,
or at least l MQ.
SRS UNIT CONNECTOR A {18P}
BLU/REDBLU/YEL
Wire side ol temale terminals
ls the tesistance as specitied?
YES Faulty SRS uniu replace the SRS unit (see
page 23-122), .l
NO Short to ground in dashboard wire harness B;
replace dashboard wire harness B.l
23-47

sRs
DTC Troubleshooting (cont'dl
16. Disconnecl the driver's airbag connector (see step
2 on page 23-21l,Iront passenger's airbag
connector (see step 3 on page 23-2'l), and front
passenger's seat belt tensioner connector (see step
5 on page 23-221 .
17. Disconnect SRS unit connector A (l8P)from the
SRS unit (see step 7 on page 23-22).
18. Disconnect the specialtool from dashboard wire
harness B.
19. Reconnect the battery negative cable.
20. Turn the ignition switch ON (ll),
21. Check for voltage between the No. 8 terminal of
SRS unit connector A (18P) and body ground, and
the No. 17 terminal and body ground. There should
be 0.5 V or less.
SRS UNIT CONNECTOR A {18PI
ls the voltage as specified?
YES-Faulty SRS unit; replace the SRS unit {seepage 23-122], .a
NO Shortto power in dashboard wire harness B;
replace dashboard wire harness B.l
23-52
LJ
DTC 3-5: Short to Ground in Driver's Seat Belt
Tensioner
Special Tools Required. sRS inflalor simularor 07sAz-TB4011A. SRS simulator lead C 07TAZ-S25011A. SRS simulator lead F 07XAZ-S230100
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 23-26).
3. Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait for 3 minutes.
4, Disconnect the driver's seat belt tensioner 2P
connector (A) from the floor wire harness,
-T84011A
07TAZ-S25011A
L
5. Connect the SRS inflator simulator (2 Q conneclor)
and simulator lead C to the floor wire harness.

t
)
6. Reconnect the battery negative cable.
7. Erase the DTC memory.
8. Read the DTC.
ls DTC 3-5 indicated?
YES-Go to step 9,
NO Shortto ground in the driver's seat belt
tensioner; replace the driver's seat belt(see page 23-4).I
9. Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait for 3 minutes.
10. Disconnect floor wire harness 4P connector C403(A)from dashboard wire harness B.
07sAz-T84011A
Connect the SRS inflator simulator (2 Q
connectors) and simulator lead F to dashboard wire
harness B.
Reconnect the battery negative cable.
Erase the DTC memory.
Read the DTC.
ls DTC 3-5 ind icated?
YES Go to step 15.
NO-Short to ground in the floor wire harness;
replace the floor wire harness.l
Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait for 3 minutes.
'11.
14.
I
23-53
16. Disconnectthe driver's airbag connector (see step
2 on page 23-211,lront passenger's airbag
connector (see step 3 on page 23-21), and front
passenger's seat belt tensioner connector (see step
5 on page 23-22).
17, Disconnect SRS unit connector A ('l8P) from the
SRS unit (see step 7 on page 23-221.
18. Disconnect the specialtoolfrom dashboard wire
harness B.
19. Check resistance between the No. 8 terminal of
SRS unit connector A (18P) and body ground, and
the No. 17 terminal and body ground. There should
be an open circuit, or at least 1 M Q .
SRS UNIT CONNECTOR A (18P)
ls the resistance as specified?
YES-Faulty SRS uniu replace the SRS unit {seepage 23-122l,.a
NO Short to ground in dashboard wire harness B;
replace dashboard wire harness B.l

11.
12.
14.
Disconnect SRS unit connector B (18P) from the
SRS unit (see step 7 on page 23-22).
Disconnect the special tool from the floor wire
harness.
Reconnect the battery negative cable.
Turn the ignition switch ON (ll).
Check for voltage between the No. 1 lerminal of
SRS unit connector B {18P) and body ground, and
the No. 10 terminal and body ground. There should
be 0.5 V or less.
SRS UNIT CONNECTOR B I18PI
ls the voltage as specitied?
YES Faulty SRS unit; replace the SRS unit (see
page 23-1221 .f
NO Short to power in the floor wire harness;
replace the floor wire harness.l
I
fJ
4.
DTC 21-5: Short to Ground in Driver's Seat
Belt Buckle Tensioner
Special Tools Required. SRS inflator simulator 07SAZ-TB4011A. SRS simulator lead F 07XAZ-S230100
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 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 driver's seat belt buckle tensioner
4P connector {A) from the floor wire harness.
Connect the SRS inflator simulator (2 Q
connectors) and simulator lead F to the floor wire
n a rness.
Reconnect the battery negative cable.
Erase the DTC memory.
(cont'd)
6.
7.
23-57

sRs
9.
10.
DTC Troubleshooting (cont'dl
11.
Read the DTC.
ls DTC 21-5 indicated?
YES Go to step 9.
NO Short to ground in the driver's seat belt
buckle tensioner; replace the driver's seat belt
buckle.l
Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait for 3 minutes.
Disconnect both side airbag 2P connectors (see
step 4 on page 23-21)and the front passenger's
seat belt buckle tensioner 4P connector (see step 6
on page 23-221.
Disconnect SRS unit connector B (18P) from the
SRS unit (see step 7 on page 23-22)
Disconnect the special tool from the floor wire
harness.
Check resistance between the No. '1 terminal of
SRS unit connector B (18P) and body ground, and
the No. 10 terminal and body ground. There should
be an open circuit, or at least 1 M Q.
12.
13.
SRS UNIT CONNECTOR B {18PI
ls the tesistance as specilied?
YES Faulty SRS uniu replace the SRS unit (see
page 23-122) .a
NO-Short to ground in the floor wire harness;
replace the floor wire harness.l
23-58
\J
'L
DTC 4-1: Open in Front Passenger's Seat Belt
renstoner
DTC 4-2: lncreased Resistance in Front
Passenger's Seat Belt Tensioner
Special Tools Required. SRS inflator simulator 07SM-T84011A. SRS simulator lead C 07TAZ-S25011A. SRS simulator lead F 07XAZ-S230100
Erase the DTC memory (see page 23-26).
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 failure, system is OK at this time.
Go to Troubleshooting Intermittent Failures {seepage 23-26).
Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait for 3 minutes.
Disconnect the front passenger's seat belt
tensioner 2P connector (A) from the floor wire
harness.
07TAZ-525011A
5. Connect the SRS inflator simulator (2 0 connector)
and simulator lead C to the floor wire harness.

sRs
DTC Troubleshooting (cont'd)
6. Reconnect the battery negative cable.
7. Erase the DTC memory.
8. Read the DTC.
ls DTC 4-4 indicated?
YES Go to step 9.
NO-Short to power in the front passenger's seat
belt tensioner; replace the front passenger's seat
belt (see page 23-4).I
9. Turn the ignition switch OFF. Disconnect the
battery negative cable. and wait for 3 minutes.
'10. Disconnect floor wire harness 4P connector
C403 (A)from dashboard wire harness B.
07sAz-TB4o11A
Connect the SRS inflator simulator (2 0
connectors) and simulator lead F to dashboard wire
harness B.
Reconnect the battery negative cable.
Erase the DTC memory.
Read the DTC.
ls DTC 4-4 indicated?
YES-Go to step 15.
NO- Short to power in the floor wire harness;
replace the floor wire harness.l
11.
tJ.
14.
23-62
11.
15.
to.
18.
19.
20.
21.
Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait for 3 minutes.
Disconnect the driver's airbag connector (see step
2 on page 23-211, tront passenger's airbag
connector (see step 3 on page 23-21), and drivefs
seat belt tensioner connector (see step 5 on page
23-22t.
Disconnect SRS unit connector A ('l8P) trom the
SRS unit (see step 7 on page 23-22).
Disconnect the special tool from dashboard wire
harness B.
Reconnect the battery negative cable.
Turn the ignition switch ON (ll).
Check for voltage between the No. 9 terminal of
SRS unit connector A (18P) and body ground, and
the No. 18 terminal and body ground. There should
be 0.5 V or less.
SRS UNIT CONNECTOR A (18PI
Wire side oJ Jemale terminals
Is the voltage as specified?
YES Faulty SRS unit; replace the SRS unit (see
page 23'1221.a
NO Shortto power in dashboard wire harness B;
replace dashboard wire harness B.l
t'J
J

sRs
DTC Troubleshooting (cont'dl
16. Disconnect the driver's airbag connector (see step
2 on page 23-21), front passenger's airbag
connector (see step 3 on page 23-21). and driver's
seat belt tensioner connector (see step 5 on page
23-22).
17. Disconnect SRS unit connector A (18P)from the
SRS unit (see step 7 on page 23-221.
18. Disconnect the specialtool from dashboard wire
harness B.
19. Check resistance between the No.9 terminal of
SRS unit connector A (18P) and body ground, and
the No. l8 terminal and body ground. There should
be an open circuit. or at least 1 M Q.
SRS UNIT CONNECTOR A {18P)
wire side of lemale terminals
ls the rcsistance as specified?
YES Faulty SRS uniU replace the SRS unit (see
page 23-1221.1
NO-Short to ground in dashboard wire harness B;
replace dashboard wire harness B.I
23-64
DTC 22-1: Open or Increased Resistance in
Front Passenger's Seat Belt Buckle Tensioner
Special Tools Required. SRS inflator simulator 07SAZ-T84011A. SRS simulator lead F 07XAZ-S230100
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 otf.
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. Disconnect the
battery negative cable, and wait for 3 minutes.
4. Disconnectthe front passenger's seat belt buckle
tensioner 4P connector (A) from the floor wire
harness.
5. Connect the SRS inflator simulator (2 Q
connectors) and the simulator lead F to the floor
wtre harness.
\,