Results 1 to 2 of 2

Thread: Passenger airbag light

  1. #1
    Join Date
    Oct 2023
    Location
    Texas
    Posts
    1
    My Cars
    2003 Z4

    Passenger airbag light

    Changed out car battery - now the airbag dash light will not go off & the “off” light is on next to the passenger seat. Fuses checked and are OK - where are the relays to check?
    Thank you

  2. #2
    Join Date
    Oct 2012
    Location
    Victoria BC Canada
    Posts
    380
    My Cars
    2004 Z4, 1700 Nomad MC
    You have the car with the battery in a battery well.. on the left hand side of the well is a “battery block” of wiring. On the left hand side of that block is a two wire connector…which goes to the end of the BST on the end of the battery cable.

    That connection was likely disturbed in the change. That connection is part of the SRS system and is required to maintain a resistance between 1.2-3.4 ohms. It is likely the cause of your issue.

    You can get electrical cleaner spray and clean the connections and reconnect.

    In any case… those faults need to be cleared with software…INPA or preferably ISTAD.

    Download ISTAD and get a switchable cable to connect laptop and car port in the driver footwell. Read the faults and then clear and see if they reappear. Read up on ISTAD and watch some YouTube tutorials.

    If you get faults again you can go down the rabbit hole on each fault and it will provide likely causes and diagnostic suggestions. In the case of the fault with the aforementioned mentioned connection it will actually allow you to measure the resistance in that wiring… allowing you opportunity to reclean and remeasure the resistance…..

    Handheld scanners can’t do this….

    ISTAD has the TIS built into it.


    Sent from my iPhone using Tapatalk

Similar Threads

  1. Please help Passenger Airbag light is on
    By BMWZ1M3 in forum 1991 - 1999 (E36)
    Replies: 3
    Last Post: 01-20-2010, 03:49 PM
  2. Passenger Airbag Lights is on! Can i reset it?
    By Warrenson in forum 2002 - 2008 (E65, E66)
    Replies: 3
    Last Post: 10-23-2009, 11:04 AM
  3. Passenger Airbag Light ON!
    By 5250larry in forum 1996 - 2003 (E39)
    Replies: 0
    Last Post: 01-03-2008, 09:58 PM
  4. Passenger airbag light - intermittent
    By vandersar in forum 1999 - 2006 (E46)
    Replies: 4
    Last Post: 09-21-2007, 02:13 AM
  5. Intermittent Passenger Airbag Light - 2000 740IL
    By rpgibbs in forum 1995 - 2001 (E38)
    Replies: 4
    Last Post: 11-19-2006, 10:52 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •