I can’t find the fuel cutoff inertia switch on this jaguar fx sv8 supercharged I’ve looked under all four footrests but I can’t find to seem the switch someone please help. Also am I looking for the right thing? It won’t start up ever since an accident from behind although was very lenient. I hope resetting the switch will solve it right. Someone please help a brother out.

 

Welcome to the forum Ebaadremix,

Is this an XF and if so, which year?

Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some information about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham

 

2009

 

I've searched the Owner's Handbook which only offers the following information on fuel cut-off:


(click on the image to enlarge it)

The Workshop Manual gives a little more information. It shows that fuel cut-off is part of the SRS (supplemental restraint system). If this outputs a crash signal on the high speed CAN (controller area network), the ECM de-energizes the fuel pump relay to prevent any further fuel being pumped to the engine.

I cannot find an Inertia Switch in the parts catalogue which suggests such isolation of the fuel supply may set a diagnostic code which has to be cleared rather than restored by resetting the switch fitted to earlier models.

Graham

 

These are ten of them
When I erase the code it doesn’t allow me to erase the code it says erasing failed it gives me 12 codes atm. I am using g scan 2.

 

I'd say you should check out the brake switch fault first.

I'm assuming this is an XF so I'll move it over to the tech section.

 

I used a battery tester. It says the battery is fine. And after further research it appears you won’t be able to find the inertia switch as unlike other cars it’s not fitted anywhere else but is part of the restraint system. I’ll reoeat the issue. The car won’t start. It’s besn hit from behind very lightly and after that it won’t start. I even checked the brake switch there’s nothing wrong with that. Any ideas what I should move on to checking next? Please help.

 

Not only it won’t start it won’t even take a self. Idk if I spelled it right.

 

@graham are you there?

 

Update - now the key won’t come out as well.

 

O

 

@Ebaadremix hi ,

how did you manage to solve this problem ,I have a jaguar xf it is behaving exactly same as your car . Please reply me and I will follow the instructions .

 

Since the car took a rear end hit, could the battery, or any connections have been compromised in any way. I know on the xj6 that I owned, any battery issues would often cause the "Christmas tree" effect which included multiple dash warnings rnings/lights etc. It may also contribute to your non start issue. Just a thought.

 

Hi, if anyone can assist me with the common problem after a rear collision.
my Jaguar XF 2015 was hit from the rear, was only a minor damage however as a result the engine wont start now. I will looked at previous forms looks like I’ve got a same or similar issue.
is there any was I can reset the fuel inertia switch on this model without going to Jaguar dealers and paying a fortune.
would appreciate your assistance

many thanks
Az

 

From memory, the inertia switch is located behind or just above the drivers side kick panel in the foot well. (RHD). It is possible to access it by peeling back the carpet which is made easier by removing the plastic panel. The switch just needs to be pushed in to reset it.
Just realised we're talking about an xf, I had a brain fart and was talking about an XJ (x300). Sorry.