green01civic

Reading SRS Codes
Unfortunately, we don't all have access to OBD-II readers that also do SRS codes. Hopefully this will aid some people in the diagnosis and repair of their vehicles.

Symptom-based Troubleshooting
4-door
SRS indicator light does not come on
SRS indicator light stays on after the ignition switch is turned on (II)
(editing in progress)

5-door
SRS indicator light does not come on
SRS indicator light stays on after the ignition switch is turned on (II)
(editing in progress)

DTC-based Troubleshooting
1. Make sure the ignition switch is OFF and wait for 10 seconds.
2. Bridge OBD-II connector pins 9 and 4 with a paperclip or a suitable short length of wire.
3. Turn the ignition switch ON (II). The SRS indicator light comes on for about 6 seconds and then goes off. Then it will indicate the DTC.
4. Read the DTC. There will be a set of slow flashes, followed by a set of fast flashes.
5. Turn the ignition switch OFF and wait for 10 seconds. Then remove your paperclip jumper (or wire) from the OBD-II connector.

DTC Code Lists:
NEC (M2), DENSO (M1) SRS unit (Without Side Airbag Model)
SIEMENS (M1), KEIHIN (M3) SRS unit (Without Side Airbag Model)
SIEMENS (M1), KEIHIN (M3 or M4) SRS unit (Side Airbag with OPDS Unit Model)
SIEMENS (M1 or M2), KEIHIN (M3) SRS unit (Side Airbag without OPDS Unit Model)

green01civic

DTC Code List
NEC (M2), DENSO (M1) SRS unit (Without Side Airbag Model)

DTC, Detection Item
1-1 Open in driver's airbag inflator
1-2 Increased resistance in driver's airbag inflator
1-3 Short to another wire or decreased resistance in driver's airbag inflator
1-4 Short to power in driver's airbag inflator
1-5 Short to ground in driver's airbag inflator
2-1 Open in front passenger's airbag inflator
2-2 Increased resistance in front passenger's airbag inflator
2-3 Short to another wire or decreased resistance in front passenger's airbag inflator
2-4 Short to power in front passenger's airbag inflator
2-5 Short to ground in front passenger's airbag inflator
3-1 Open in left side seat belt tensioner
3-2 Increased resistance in left side seat belt tensioner
3-3 Short to another wire or decreased resistance in left side seat belt tensioner
3-4 Short to power in left side seat belt tensioner
3-5 Short to ground in left side seat belt tensioner
4-1 Open in right side seat belt tensioner
4-2 Increased resistance in right side seat belt tensioner
4-3 Short to another wire or decreased resistance in left side seat belt tensioner
4-4 Short to power in left side seat belt tensioner
4-5 Short to ground in left side seat belt tensioner
5-1, 5-2, 5-3 (NEC), 5-4, 5-5 (NEC) Internal failure of SRS unit
6-1 (NEC), 6-2 (NEC), 6-3 (NEC), 6-4 Internal failure of SRS unit
7-1, 7-2, 7-3 Internal failure of SRS unit
8-1, 8-2, 8-3, 8-4, 8-5, 8-6 Internal failure of SRS unit
NOTE: Before troubleshooting DTCs 5-1 through 8-6, check battery/system voltage. If voltage is low, repair the charging system before troubleshooting the SRS system.
9-1 Internal failure of the SRS unit. If intermittent, could mean internal failure of the unit or a faulty indicator light circuit. Refer to Troubleshooting Intermittent Failures (see page 23-38).
9-2 Internal failure of the SRS unit. If intermittent, could mean internal failure of the power supply (VB line). Refer to Troubleshooting Intermittent Failures
9-6 Faulty left front sensor
9-7 Faulty right front sensor
10-1 Seat belt tensioners (and airbag(s)) deployed

green01civic

DTC Code List
SIEMENS (M1), KEIHIN (M3) SRS unit (Without Side Airbag Model)

DTC, Detection Item
1-1 Open or increased resistance in driver's airbag inflator
1-3 Short to another wire or decreased resistance in driver's airbag inflator
1-4 Short to power in driver's airbag inflator
1-5 Short to ground in driver's airbag inflator

(editing in progress)

green01civic

SIEMENS (M1), KEIHIN (M3 or M4) SRS unit (Side Airbag with OPDS Unit Model)

DTC, Detection Item

1-1 Open or increased resistance in driver's airbag inflator
1-3 Short to another wire or decreased resistance in driver's airbag inflator
1-4 Short to power in driver's airbag inflator

(editing in progress)

green01civic

SIEMENS (M1 or M2), KEIHIN (M3) SRS unit (Side Airbag without OPDS Unit Model)

DTC, Detection Item

1-1 Open or increased resistance in driver's airbag inflator
1-3 Short to another wire or decreased resistance in driver's airbag inflator
1-4 Short to power in driver's airbag inflator

(editing in progress)

MindBomber

Excellent thread. I know there's something similar on the site already, but it's buried in the archives and I can't find it.

mcbakker100

Hi all,

I have a question.

I have codes 5-1 and 5-2. I bought a crashed civic and the drivers (steering wheel) and passangers airbags (dash) are out. So I assume i have to replace the both sensors in the front, the airbags and the srs unit.

Why i see only 5-1, 5-2? do i need to change the srs unit first to see the other codes?

Thanks. Greetz, Maarten

Shine.

I have no idea how to read my code..Can anyone here give it a shot?

http://www.youtube.com/watch?v=tlRmE...el_video_title

04 Honda Civic

iTrader: (2)

If I have the "side airbag off" light do I use this method or a different method?

Can I also use the 2 pin connector that is used to reset the code to read it as well? This is what the manual states I believe.

Lastly what would be the code for a bad OPDS?

tempid

Thanks everyone. I followed the steps outlined in this thread got a 9-3 which seems to be the seat buckle issue. I put the seat belt on/off into the buckle and the red symbol went on/off correctly with my actions. Also opened the buckled and blew compressed air into it. I've then erased the code and it airbag light hasn't come up so far.

Thanks again for all the help. I really appreciate it.