2003 HONDA CIVIC connector

1. Disconnect the battery negative cable, and wait at
least 3 minutes.
Driver's Airbag
2. Remove the access panel (A) from the steering
wheel, then disconnecl the driver's airbag 4P
connector (B)from the cable reer.
Front Passenger's Airbag
3. Disconnect the front passenger's airbag 4P
connector (A)from dashboard wire harness B.
Side Airbag
4. Disconnect both side airbag 2P connectors (Alfrom
the floor wire harness.
(cont'd)
23-21

sRs
Precautions and Procedures (cont'd)
Seat Belt Tensioner
5. Disconnect both seat belt tensioner 2P connectors
(A) from the floor wire harness
Seat Belt Buckle Tensioner
6. Disconnect both seat belt buckle tensioner 4P
connectors (A).
23-22
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4
SRS Unit
7. Disconnect SRS unit connector A, SRS unit
connector B, and/or SRS unit connector C from the
SRS unit.

General Troubleshooting Information
DTC (Diagnostic Trouble Codesl
The self-diagnostic function of the SRS system allows it
to locate the causes of system problems and then store
this information in memory. For easier troubleshooting,
this data can be retrieved via a data link circuit.
. When you turn the ignition switch ON (ll), the SRS
indicator will come on. lf it goes off after 6 seconds,
the system is normal.. lf there is an abnormality, the svstem locates and
defines the problem, stores this information in
memory, and turns the SRS indicator on. The data
will remain in the memory even when the ignition
switch is turned off or if the battery is disconnected.. When you connect the Honda PG lM Tester to the 16P
data link connector (DLC)to short the SCS terminal,
and turn the ignition switch ON (ll). the SRS indicator
will indicate the diagnostic trouble code (DTC) by the
number of blinks.. When you connect the Honda PGM Tester to the 16P
data link Connector (DLC), you can retrieve the DTC in
the Honda Systems "SRS" menu.. After reading and recording the DTC, proceed with
the troubleshooting procedure for th is code.
Precautions. Use only a digital multimeter to check the system. lf
it's not a Honda multimeter, make sure its output is
10 mA (0.01A) or less when switched to the smallest
value in the ohmmeter range, A tester with a higher
output could damage the airbag circuit or cause
accidental airbag deployment and possible injury.. Whenever the ignition switch is ON (ll), or has been
turned OFF for less than 3 minutes, be careful not to
bump the SRS uniU the airbags could accidentally
deploy and cause damage or injuries.. Before you remove the SRS harness, disconnect the
driver's airbag connector. the front passenger's
airbag connector, both side airbag connectors, both
seat belt buckle tensioner connectors, and both seat
belt tensioner connectors.. Make sure the battery is sufficiently charged. lf the
battery is dead or low, measuring values won't be
correct.. Do not touch a tester probe to the terminals in the
SRS unit or harness connectors, and do not connect
the terminals with a jumper wire. Use only the
backprobe set and the Honda PGM Tester. Backprobe
spring loaded lock type connectors correctly.
Reading the DTC
When the SRS indicator is on, read the DTC using either
of the following methods:
PGM Tester "SRS" Menu Method:
Connect the Honda PGM Tester {A) to the 16P data link
connector {DLC)(B), and follow the Tester's Drompts in
the "SRS" menu.
lf the Tester indicates no DTC, no communication. DTC
3-6 to 3-'10, DTC 4-6 to 4-10, DTC 9-1, or DTC 9-2,
double-check by using the "SCS" menu method.
(cont'd)
23-23

sRs
General Troubleshooting Information (cont'd)
PGM Tester "SCS" Menu Method {retrieving the flash
codes):
The SRS indicator (A) indicates the DTC by lhe number
of blinks when the Honda PGM Tester (B) is connected
to the DLC (data link connector) ( 16P) (1).
'1. Make sure the ionition switch is OFF.
2. Connect the Honda PGN4 Tester (B) to the DLC (C),
and follow the Tester's oromDts in the "SCS" menu
to ground the SCS line (see the Honda PGM Tester
ODerator's Manual).
Make sure the SCS line is grounded, then turn the
ignition switch ON (ll). The SRS indicator comes on
for about 6 seconds, and then goes off. Then it will
blink to indicate the DTC (see the table below).
Read the DTC.
Turn the ignition switch OFF, and wait for 10
seconds.
3.
4.
5.
6, Disconnect the Honda PGM Tester from the DLC.
7. Do the troubleshooting procedure for the DTC.
Patteins of DTC Indications:
The DTC consists of a main code and subcode.
S: Second
25 356S
oN
[ltl|[
oFFl I l------Ll---l I
First emitting Main code Subcode
23-24
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Reading the main code:
In case of 1- 10Count the number of blinks.
Examplo:1.2 S r.2 S 1.2 S 1.2 S 1.2 S
*t**t*l*l
""_f]_flfl
Maincodo= 1 + 1 + 1 =3
In case ot 11..'15Four fast blinks count as 10.Add any funher blinks together as shown.
Example:
0.1 s
,A/// t\\//lii 1.rs r.2s r.2s 1.2s
_ | *t* -L'--*l
Main code= 10 I
ln case of 20 or moreTwo sets of four fast blinks count as 20.Add any funher blinks together as shown.
Examplo:
0.1 s 0.1s
,y'fl\,,. /[N 12s 12s
=12
L4
""ffi
*FtftffN*+fH-t-ff *l-
Main code= 10 + 10
Reading the subcode:
Count the number of blinks.
Example:
0.3 s 0.3 s 0.3 s 0.3 s 0.3 s 0.3 s 0.3 s
l**t**t*t*t*l
""ffi
Subcode=1+1+1r'1=4
lf the main code is '3', and the subcode is '4', record aDTC 3 4.

sRs
General Troubleshooting Information (cont'dl
Erasing the DTG Memory
Specisl Tool Required
SCS service connector 07PAz-0010100
To erase the DTC(S)from the SRS unit, use a Honda
PGM Tester {see lhe Honda PGfM Tester SRS Vehicle
System Supplement) or the following procedure.
1. Make sure the ignition switch is OFF.
2. Connect the SCS service connector {A) to the MES
2P connector (B). Do not use a jumper wire.
07PAZ-0010100
3. Turn the ignition switch ON (ll).
4. The SRS indicator will come on for about 6 seconds,
and then go off. Remove the SCS service connector
from the MES connector within 4 seconds after the
indicator goes off.
5. The SRS indicator will come on again. Reconnect
the SCS service connector to the MES connector
within 4 seconds after the indicator comes on.
6. When the SRS indicator goes off, remove the SCS
service connector from the MES connector within 4
seconds.
7. The SRS indicator will bllnk two times indicating
that the memory has been erased.
8. Turn the ignition switch OFF, and wait for '10
seconds.
9. Turn the ignition switch ON (ll) again. The SRS js
OK if the SRS indicator comes on for 6 seconds and
then goes off.
23-26
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Troubleshooting lntermittent Failures
lf there was a malfunction, but it doesn't recur. it will be
stored in the memory as an intermittent failure, and the
SRS indicator will come on.
After checking the DTC, troubleshoot as follows:
1. Read the DTC (see "Reading the DTC").
2. Erase the DTC memory (see "Erasing the DTC
Memory").
3. With the shift lever in neutral, start the engine, and
let it idle.
The SRS indicator will come on for about 6 seconds
and then go off.
Shake the wire harness and the connectors. take a
test drive (quick acceleration, quick braking,
cornering), turn the steering wheel fully left and
right, and hold it there for 5 to '10 seconds. lf the
problem recurs, the SRS indicator will come on.
lf you can't duplicate the intermittent failure, the
system is OK at this time.
4.

I
Initializing the OPDS {Occupant Position Detection System} Unit
Special Tool Required
SCS service connector 07PAz-00'1 01 00
When a seat-back cover, seat-back cushion, and/or OPDS unit is replaced, initialize the OPDS by following theprocedure below.
NOTE: Make sure the front passenger's seat is dry. Set the seat-back in the normal position, and make sure there isnothing on the seat.
'1. l\4ake sure the ignition switch is OFF.
2. Connect the Honda PGM Tester (A) to the DLC (16P) (B), andfollowtheTester's prompts jn the ,,SCS,, menu toground the SCS line (see the Honda PGM Tester Operator's ManuaD.
3. Connect the SCS service connector (C) to the MES 2P connector (D). Do not use a iumoer wire.
c07PAZ-00r0100
4. Turn the ignition switch ON {ll).
5. The SRS indicator comes on for about 6 seconds and goes off. Remove the SCS service connector from the MESconnector within 4 seconds after the SRS indicator went off.
6. The SRS indicator comes on again. Reconnect the SCS service connector to the MES connector within 4 secondsafter the SRS indicator comes on.
7. The SRS indicator goes off. Remove the SCS service connector from the MES connector withln 4 seconds.8. Watch the sRS indicator.'lftheindicatorblinkstwotimesandthenstayson,theOPDSisinitialized.buttheDTCSneedtobeerased.Goto
step 9, then erase the DTCS..lftheindicatorblinkstwotimesandthengoesoff,theOPDSunitisinitialized.Gotostep9.
' lf the indicator stays on without first blinking.the OPDS is not initialized. Readthe DTC. lf DTC 15-'l is indicated,repeat the initialization procedure. lf another DTC is indicated, go to the appropriate page in the DTCTroubleshooting Index.
9. Turn the ignition switch off, and disconnect the PGM Tester.
SBS indic.ror
MES
IJ
DISCONNECTED
23-27

Self-diagnosis System
A self-diagnosis circuit is built into the SRS uniU when the ignition switch is turned ON (ll), the SRS indicator comes onand goes off after about 6 seconds if the SRS is operating normally.
lf the indicator does not come on, or does not go off after 6 seconds. or if il comes on while driving, it indicates anabnormality in the SRS. The SRS must be inspected and repaired as soon as possible.
For better serviceability, the SRS unit memory stores a DTC that relates to the cause of the malfunction, and the unit isconnected to the data link circuit. This information can be read with the Honda PGM Tester when it is connected to thedata link connector (DLc) (see page 23-23).
23-33

sRs
J
a
DTC Troubleshooting
DTC 1-1: Open in Driver's Airbag Inflator
DTC 1-2: Increased Resistance in Driver's
Airbag Inflator
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 aboul 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. Disconnect the
battery negative cable, and wait for 3 minutes.
4. Disconnect the driver's airbag 4P connector (A)
from the cable reel.
07sAz-TB4011A
07xaz-s230100
5. Connect the SRS inflator simulator (2 Q
connectors) and the simulator lead F to the cable
reet.
23-36
6. Reconnect the battery negative cable.
7. Erase the DTC memory.
8. Read the DTC,
ls DTC 1-1 or DTC 1-2 indicated?
YES-Go to step 9.
NO Open or increased resistance in the driver's
airbag inflator; replace the driver's airbag (see page
23-113).t
9. Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait ior 3 minutes.
10. Disconnect the front passenger's airbag 4P
connector from dashboard wire harness B (see step
3 on page 23-21).
1 1. Disconnect both seat belt tensioners 2P connectors
from the floor wire harness (see step 5 on page 23-
22t.
12. Disconnect SRS unit connector A (18P)from the
SRS unit (see step 7 on page 23-22). Do not
disconnect the special tool from the cable reel.