Red Airbag Warning Light

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by johnjohnchu, Sep 27, 2016.

Tags:
  1. johnjohnchu

    johnjohnchu Member

    Joined:
    Jan 12, 2008
    210
    92
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2006 Prius
    Model:
    N/A
    The red airbag warning light started to come on and off since yesterday. It is mostly on all day today. Use of SRS enabled scantool shows the following error code:

    B1801 - Open in D squib circuit.

    All suggestions are greatly appreciated.
     
    #1 johnjohnchu, Sep 27, 2016
    Last edited: Sep 27, 2016
  2. JC91006

    JC91006 Senior Member

    Joined:
    Nov 10, 2013
    13,739
    6,361
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2010 Prius
    Model:
    V
    Video on YouTube says to replace spiral cable.

    Has your car ever been in accident? I would try and reset the car first. Disconnect 12v few seconds
     
  3. johnjohnchu

    johnjohnchu Member

    Joined:
    Jan 12, 2008
    210
    92
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2006 Prius
    Model:
    N/A
    Had a few minor accidents, nothing recently, and nothing near the driver side. The warning light came right back on after code erase.

    Is the spiral cable easy to replace? By the way, I have also noticed that my steering wheel has not light up for a few years. I am pretty handy with car repair. However, I never had to work on steering wheel.
     
    #3 johnjohnchu, Sep 27, 2016
    Last edited: Sep 27, 2016
  4. JC91006

    JC91006 Senior Member

    Joined:
    Nov 10, 2013
    13,739
    6,361
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2010 Prius
    Model:
    V
    If your airbag has deployed before, then the spiral cable is probably not original
     
  5. johnjohnchu

    johnjohnchu Member

    Joined:
    Jan 12, 2008
    210
    92
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2006 Prius
    Model:
    N/A
    The airbag has never been deployed before.
     
  6. andrewclaus

    andrewclaus Active Member

    Joined:
    Sep 15, 2009
    993
    309
    0
    Location:
    Golden, CO
    Vehicle:
    2007 Prius
    Usually the first function to fail on the steering wheel is the recirc button for the A/C, then the cruise control.

    There are good threads here on replacing the spiral cable, or clockspring. I did the job last year and it was surprisingly easy, as long as you're well-versed in SRS safety and have a few basic tools. If your car has VSC, there's a steering angle sensor that has to be transferred.
     
  7. JC91006

    JC91006 Senior Member

    Joined:
    Nov 10, 2013
    13,739
    6,361
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2010 Prius
    Model:
    V
    My recirc doesn't work on my 05
     
  8. johnjohnchu

    johnjohnchu Member

    Joined:
    Jan 12, 2008
    210
    92
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2006 Prius
    Model:
    N/A
    Just checked. None of A/C functions on the steering wheel works. Cruise control is still OK.

    Never had to work on SRS before. So I do not know much about it. According to YouTube, 12v battery needs to be disconnected and removed airbag assembly should be placed facing up. Is there anything else regarding SRS safety?

    My car does have VSC.
     
  9. JC91006

    JC91006 Senior Member

    Joined:
    Nov 10, 2013
    13,739
    6,361
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2010 Prius
    Model:
    V
    Removing 12v connection is it. Make sure you buy oem part or else you'll be doing this again.

    It's actually pretty easy
     
    johnjohnchu likes this.
  10. Priusyipee

    Priusyipee Active Member

    Joined:
    Nov 9, 2012
    289
    181
    0
    Location:
    Upstate New York
    Vehicle:
    2005 Prius
    Model:
    N/A
    Had this happen on and off with my '05 for years. Check the connection under the passenger seat and make sure that the connectors are firmly attached. After 3 re-starts, the light should disappear if a loose connector was the problem. An easy no cost fix. For me, has worked every time even though the connector seemed tight...
     
    Dino33ca likes this.
  11. andrewclaus

    andrewclaus Active Member

    Joined:
    Sep 15, 2009
    993
    309
    0
    Location:
    Golden, CO
    Vehicle:
    2007 Prius
    Since the A/C controls don't work, it's most likely the clockspring. You got the safety stuff down--it's easy and obvious, but you never know who's clueless. You need a Torx driver to remove the airbag. I didn't need a puller for my wheel. Leave the nut on loose when you pop it--another obvious thing, but somehow I missed that one.

    Be sure you use your VIN when you order the new part. Different switch layouts are available for every year. I use this site.

    I used a cheap knock-off and it worked, but the pins were obviously inferior. Use the OEM part a) if you can afford it b) you don't ever want to do the job again, c) if you plan on keeping the car, and d) especially if you are concerned about SRS reliability.
     
    johnjohnchu likes this.
  12. johnjohnchu

    johnjohnchu Member

    Joined:
    Jan 12, 2008
    210
    92
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2006 Prius
    Model:
    N/A
    a) b) c) and d) listed in the previous post are all applicable here.

    Went to local Longo Toyota. They wanted $300 (inc. tax) for the part (84306-0E010). Installation is another $250 for 2 hours of work. Searched briefly online. Camelback Toyota is thus far the cheapest ($216, free shipping, no tax). Apparently many Toyota and Scion cars also use this particular part number over many years. Just wondering if local junk yards can also be an option. Is the part number marked on the part itself?

    Also is there anything I need to watch out for during the transfer of steering angle sensor? Any calibration involved after the replacement of the spiral cable and the transfer of steering angle sensor?

    All comments are greatly appreciated.
     
  13. exstudent

    exstudent Senior Member

    Joined:
    Jul 11, 2009
    2,209
    836
    0
    Location:
    Torrance, CA
    Vehicle:
    2007 Prius
    1) The clocking spring is a consumable part: it has a finite lifespan. Once that lifespan has been reached, steering wheel buttons will no longer work reliably or at all.

    2) How frequently do you want to be doing this repair with eBay junk or a junkyard part that has a short lifespan left.

    3) How much is your life worth to you? READ this: Be careful of counterfeit Clocksprings / Spiral Cables sold online | PriusChat
     
  14. JC91006

    JC91006 Senior Member

    Joined:
    Nov 10, 2013
    13,739
    6,361
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2010 Prius
    Model:
    V
    Buy the part from Camelback, it's the best option.

    The ones at junkyards are not worth it. You don't know if they are OEM parts and most of them are useless after airbag deployment.

    I've taken this steering wheel apart many times it's very straight forward. I use a X shape tire iron, it fits perfectly and provides good grip when you loosen and tighten the steering wheel.
     
  15. andrewclaus

    andrewclaus Active Member

    Joined:
    Sep 15, 2009
    993
    309
    0
    Location:
    Golden, CO
    Vehicle:
    2007 Prius
    I didn't have any problems transferring the VSC sensor, just four or five plastic clips and don't rotate anything while it's off. It takes a few seconds. I was surprised it was even there--the tutorial I read initially didn't even mention it.

    The part number is on a sticker, as I recall.

    There's good information in #13 above to help you make your decision on how much to pay for it.

    For what it's worth, the truly important cable feature, the SRS, appeared to be of good quality on the cheap cable. The pins were full-sized and firm. There are dual redundant pins and wires, too. Please consider that I did not test them electrically, just compared visually. The pins on the other functions were obviously cheaper, and I had some issues getting them to align in the plugs, but the SRS looked fine.
     
Loading...