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CR-V::Clinical Rounds Routine maintenance, problems, solutions and repair

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  #1  
Old 07-26-2010, 04:51 PM
k24 rd6 k24 rd6 is offline
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Default SRS Light Reset Process and Reading DTC info

I realize this info is already been posted but since there doesn't seem to be a sticky for this and I just a had a pm about it, I think we need to add one more to the gazillion stickies already there.



Erasing the DTC Memory
Special Tools Required : SCS short connector 07PAZ-0010100

To erase the DTC(s) from the SRS unit, use a Honda PGM Tester (see the Honda PGM Tester SRS vehicle System Supplement) or the following procedure.

1Make sure the ignition switch is OFF.
2Connect the SCS short connector (A) to the MES connector (2P) (1). Do not use a jumper wire.
3 Turn the ignition switch ON (II).
4The SRS indicator will come on for about 6 seconds, and then go off. Remove the SCS short connector from the MES connector (2P) within 4 seconds after the indicator goes off.
5The SRS indicator will come on again. Reconnect the SCS short connector to the MES connector (2P) within 4 seconds after the indicator comes on.
6When the SRS indicator goes off, remove the SCS short connector from the MES connector (2P) within 4 seconds.
7The SRS indicator will blink two times indicating that the memory has been erased.
8Turn the ignition switch OFF, and wait for 10 seconds.
9Turn the ignition switch ON (II) again. The SRS is OK if the SRS indicator comes on for 6 seconds and then goes off.



Reading the SRS Indicator Method (with service check connector (2P) models):
The SRS indicator indicates the DTC by the number of blinks when the SCS short connector is connected to the service check connector (2P).

1Make sure the ignition switch is OFF, and wait for 10 seconds. Then connect the SCS short connector (A) to the service check connector (2P) (B). If you don't wait 10 seconds, the SRS unit won't be completely reset or output DTCs.
2Turn the ignition switch ON (II). The SRS indicator comes on for about 6 seconds, and then goes off. Then it will indicate the DTC.
3Read the DTC.
4Turn the ignition switch OFF, and wait for 10 seconds. Then disconnect the SCS short connector from the service check connector (2P).


A sample of some of the DTCs. There are too many to list them all

Without Side Airbag and Seat belt buckle tensioner Model(DENSO)
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 right side seat belt tensioner
4-4 Short to power in right side seat belt tensioner
4-5 Short to ground in right side seat belt tensioner
5-1 Internal failure of SRS unit NOTE: Before troubleshooting DTCs 5-1 through 8-6, check battery/system voltage. If the voltage is low, repair the charging system before troubleshooting the SRS.
5-2
5-4
6-4
7-1
7-2
7-3
8-1
8-2
8-3
8-4
8-5
8-6
9-1 Internal failure of the SRS unit. If intermittent, could mean internal failure of the unit or a faulty indicator circuit. Refer to Troubleshooting Intermittent Failures
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
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  #2  
Old 07-26-2010, 05:01 PM
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Quote:
Originally Posted by k24 rd6 View Post
I think we need to add one more to the gazillion stickies already there.
Stuck...and thanks for reminding to bug Bing about organizing the stickies. Again.

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  #3  
Old 10-30-2010, 08:35 PM
zanzarista zanzarista is offline
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Great job on the description! The process worked.
I bought an Innova 3130 obd reader which is supposed to be able to get to the DTC codes. The SRS light had been on for a while (week) But no code showed up in the logs.
I found the reset instructions on another site and read your entry after I had reset the system. If this occurs again, I'll have to try your method of forcing the codes to come up.
In trying to figure out WHY it came on at all, I discoverd the drivers seat belt release mechanism, wasn't consistantly telling the car it had disconnected. I happend to be watching the dash when I unbuckled (car running) and the seat belt off indicator, came on and then went out. The SRS came on immediatly following the event. Some contact cleaner and then a dose of WD 40 seems to keep the seat belt mechanism reporting working correctly.
I hope this helps someone else who bumps into this error.
Z
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Old 10-31-2010, 05:34 PM
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For clarity about which connector is which, see the Dealer's PDI sheets for CR-V.

The PDI sheets are at the bottom of the page.

This thread needs the term 'blink codes' in it so people can find it when they want to check their 'blink codes'.

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Last edited by 'Curly Q Links'; 06-17-2011 at 10:20 PM. Reason: the term 'blink codes'
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  #5  
Old 11-01-2010, 07:38 AM
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buckyswider buckyswider is offline
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Z, (and others), my understanding is that an OBD tool will not pull the SRS codes. The special honda PGM tester has the capability to do this, but not an aftermarket generic OBDII tool. Is that correct??

Also in googling around, I have found that that the Service Check Connector has been superseded by model #07PAZ-001010A, which goes for $10-11.

Also found a recommendation that I could go to a local Best-Buy type store and buy a "speaker harness" kit for a honda and join the two lead wires and use that instead of a service check connector. However, I can not reconcile this with the Electrical service manual- the connector types for the speakers don't seem to be documented. Can anyone advise if this is the same as the "2P" connector needed for the SRS reset connector? It would let me get this today (before it slips out of my mind) and also would make it easier to put a switch between the two legs- so I don't have to fumble with plugging and unplugging the connector within the 4 second windows.

My SRS light has been on for 2+ years now- the dealer replaced a seat belt, but told me I needed a new SRS module. The same stealer that told me I needed a new engine or valve replacement for $3K OR A NEW CAR (simple valve adjustment and it was running like a top again) and a new ICU (they said they got no signal from the ODBII connector; yet my cheapo scan tool works just fine; apparently as does my new mechanic's).
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Old 11-01-2010, 08:27 PM
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You are correct, SRS codes do not show up with a standard OBDII scanner.
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Old 11-06-2010, 09:17 AM
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buckyswider buckyswider is offline
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Well, after all that...
I couldn't find any of the speaker harnesses locally, so I ended up ordering the H SCS short connector. I was correct in my speculation that I wouldn't be able to unconnect/reconnect/unconnect within the four second intervals (it's pretty tight up there if you don't take the underpanel off) so I cut the teensy wire and spliced in a switch.

I was able to erase the memory (two blinks) but the SRS indicator still would not go out. Tried it twice. So I then plugged into the service check connector to read the code. Bepped up three longs and two shorts over and over, so I'm guessing that's a 3-2 - "Increased resistance in left side seat belt tensioner". Now thinking back, I think that's the seat belt that the stealer had replaced previously- then they told me they couldn't clear the code, so I needed a new SRS unit.

Wondering what to do next- have the belt replaced again? Continue to ignore the SRS light? Get a new SRS unit? I'm guessing option #2....
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Old 11-07-2010, 04:56 PM
zanzarista zanzarista is offline
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Thanks for the feedback about the "generic" odbII reader. It looks like I have another expensive diagnostic tool that has limited functionality for OEM specific codes...

It's been a little more than a week and the SRS light is still off. I guess I got off lucky in only having to spray cleaner into the female part of the seat belt clasp.
Thanks again for the tips and advice.
BR
Z
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Old 06-17-2011, 07:29 PM
cindybert cindybert is offline
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Does the above method for reading the SRS indicator work for the Honda Pilot as well as the CR-V? I have a 2003 EX that's had the SRS light on for a while now since I've not had time to look into it, and I don't really want to go to the dealer.
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Old 06-18-2011, 04:08 PM
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Quote:
Originally Posted by buckyswider View Post
Well, after all that...
I couldn't find any of the speaker harnesses locally, so I ended up ordering the H SCS short connector. I was correct in my speculation that I wouldn't be able to unconnect/reconnect/unconnect within the four second intervals (it's pretty tight up there if you don't take the underpanel off) so I cut the teensy wire and spliced in a switch.
So, as suspected, it's not a diode, or a resistor, just a dead short.

Can you get us a close-up of the connector on that toy, for those of us who like to build once-in-a-lifetime tools?

On the Gen 1 a skinny paperclip works sweet.

Thanks
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