XJ XJ8 / XJR ( X308 ) 1997 - 2003

Airbag warning light / intermitten

 
  #1  
Old 01-02-2019, 01:35 PM
Senior Member
Thread Starter
Join Date: Apr 2015
Location: Jacksonville, Fl
Posts: 313
Received 7 Likes on 7 Posts
Default Airbag warning light / intermitten

2003 XJ8 - Airbag warning light is coming on intermittently. I have heard that there are sensors under the front seats that can cause this...my question is....are they accessible without having to remove the seat?
Many thanks to all responders..
 
  #2  
Old 01-02-2019, 02:07 PM
Join Date: Dec 2009
Location: Decatur,TX
Posts: 7,948
Received 4,210 Likes on 2,743 Posts
Default

The fastest way to know what the SRS module is faulting is to interrogate the SRS module.
We can all guess about what common faults and ways to check them but it is all a guess.

Jaguar advises that the airbags themselves are NOT to be tested directly for continuity/resistance. You might supply enough energy to ignite the airbag.
PDU, WDS or IDS should be used to read the resistance THROUGH the SRS module.

You can unplug each airbag (or harness/ circuit) and look for OPEN CIRCUIT (there is a 'shorting bar' in the connector electrically closest to the SRS module end). Then you can install a 'shunt' (a plug with a resistor) to simulate the airbag and test the circuit/harness with a multimeter.

Jaguar issued several different airbag 'testing plugs' that snap into the harness connector with the correct resistance to simulate the airbag. I made up a set with old-discarded airbag connectors soldered to 2.1 to 2.5 ohm resistors.

Good luck.

Let the guessing begin.

bob
 

Last edited by motorcarman; 01-02-2019 at 06:51 PM.
  #3  
Old 01-02-2019, 02:17 PM
Senior Member
Join Date: Jan 2014
Location: Greenwood, Indiana
Posts: 142
Received 9 Likes on 8 Posts
Default

My airbag light was intermittent also. I discovered that one of the connectors for the airbag wiring, had come loose from the clip that secured it to the frame of the seat. Because it was not secure, connectivity was sometimes compromised when I adjusted the sear. I loosened the rear seat bolts and removed the front bolts which allowed me to tilt the seat back enough to examine the wiring and make the repair. I actually found other connections that were off the clips also.
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mick99
XK8 / XKR ( X100 )
10
07-14-2017 09:31 PM
Blake04VDP
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
3
01-16-2016 06:17 AM
slmskrs
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
6
11-12-2013 02:08 AM
texmanmoore
S-Type / S type R Supercharged V8 ( X200 )
0
10-28-2012 08:40 AM
JLee
X-Type ( X400 )
8
10-06-2012 09:46 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Quick Reply: Airbag warning light / intermitten


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: