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Air Bag Light

Discussion in 'Technical Chat' started by Auto, Nov 8, 2009.

  1. Nov 8, 2009 at 4:53 PM
    #1
    Auto

    Auto [OP] Well-Known Member

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    My 01 SR5 that has an air bag light on. My truck is showing code B1100 and B1157. I have already checked both air bag sensors with an ohm meter and they both check out good. Where do I go from here?
     
  2. Nov 8, 2009 at 4:58 PM
    #2
    Brunes

    Brunes abides.

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    Yeah...I mess around with damn near anything on my truck- but not the airbags. One wrong move and you are in for like a 3 grand of repairs and parts.
     
  3. Nov 15, 2009 at 8:46 AM
    #3
    kevhogaz

    kevhogaz Low Speed, High Drag

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    Those codes indicate that your RH air bag sensor is bad. The B1100 is a generic sensor code, and B1157 pin points the problem as the RH sensor.

    You said you checked the Ohms, I show you should have between 754-886. The second Ohm test is to check resistance from SR+ to body ground. This should be 1M Ohms or higher.

    The only other thing to check would be voltage, and then a break in your wiring somewhere. I don't remember ever replacing a sensor on a Tacoma, so look around for the obvious first.

    Don't be afraid of air bags. ALWAYS disconnect the negative battery cable when you're replacing stuff, and you'll be fine. The only hard part about working on SRS systems is usually the connectors. They always have a double clip on 'em, so you have to be careful not to break the connector when you're unplugging it.
     
  4. Nov 15, 2009 at 12:53 PM
    #4
    xsvtoyz

    xsvtoyz Well-Known Member

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    I thought this said 3 grand and pants! not parts! lol probably true on the pants as well though! I as well am not a big fan of playing with the airbags but a little TS is passable but please don't ohm the airbags themselves and yes undo the battery first.
     
  5. Nov 16, 2009 at 9:03 AM
    #5
    Auto

    Auto [OP] Well-Known Member

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    Thanks kevhogaz when i get home tonight from work i will futher the testing on the right side sensor and check the wiring.
     
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