Question about 1998 Jaguar XJ8L

1 Answer

1998 XJ8 Vanden Plas taillight problem

The taillights come on but go off after about 15 seconds. I found they stayed on if the headlight switch is in the "park" light position. However when I turned the key on and teh switch was in the park position the taillights and front park lights both went off after about 30 seconds. When the headlight switch was turned to the headlight position (or on auto mode) and the headlights came on the taillights went of after 15 seconds. I've heard electrical problems were available in the Jags, and now am inclined to believe it. I have no diagram to try to follow what happens when the switch is moved from one position to the other and what effect the key being in the on or off position has on the taillight system.

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 7 Answers

Check the electrical grounds for the taillights. In fact, get a diagram and check all the easily accessible grounds. Many of these are in the engine bay.


Posted on Nov 18, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

2004 Jaguar, Vaden Plaus,car just quit running going down the road. Had to have it towed home Won't start,turns over, just won't start,says Restricted Performance.

Sounds like it is some type of 'limp home' mode.
It could be anything. It might be as simple as a bad Fuel Pump Relay. When you turn the Key to the ON position (not Start) can you hear a little buzz for about 1 second? That would be your fuel pump running. You need to see if the engine is getting gas and spark.

Jan 05, 2016 | Cars & Trucks

1 Answer

Why when the ignition is off on my 99 Jeep Grand Cherokee do the headlights inadvertently come on & stay on for 10 to 30 seconds?

I used to leave my headlight switch in "Auto" mode - and found that after awhile, my headlights would do the same thing. I think there may have been some corrosion in the switch. I stopped using the "Auto" mode and this resolved the problem

Oct 10, 2014 | 1999 Jeep Grand Cherokee

1 Answer

Headlights taillights stay

it's running hot because of the battery. For example, some fuses are hot at all times, and some are hot manually with car running for instance. Try wiring the positive to a source that is hot only when the car is running.

Aug 12, 2013 | Honda Cars & Trucks

1 Answer

Built in radar detector

if this is a unit installed by a dealer(wether you bought it new or used) they should be able to get you the info you need. contact the dealer nearest you and ask for their parts guys. an experienced one will have the info.

Nov 15, 2009 | 2000 Jaguar Vanden Plas

1 Answer

I removed the headlight switch and the markerlights stayed on and the left headlight oh the markerlight are on the left side to

Is the Wiring still disconnected from the switch?
If so, there is a contact of the Harness wiring when you left it loose. Not all models isolate accessory power suplies when the Ignition is switched off.

Aug 28, 2009 | 1995 Jaguar Vanden Plas

1 Answer

Left side marker lights stay on and headlight on left side stays on very dim

you need to trace wires first cause there is a wire grounded over somewhere, could possibly be in the headlight switch

Aug 26, 2009 | 1995 Jaguar Vanden Plas

2 Answers

Xj8 instrument lights not on when headlights on

Make sure the dash lights aren't turned down first of all. I know that sounds basic, but I've seen it happen before. Believe the twist is near the knob to adjust the steering wheel which is lower steering column left hand side. Otherwise, I would check fuses to be sure. finally, the last thing I would do it pull the gauge cluster and check connections as well as bulbs.

Apr 04, 2009 | 2001 Jaguar XJ8

Not finding what you are looking for?
1998 Jaguar XJ8L Logo

Related Topics:

316 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jaguar Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers


Level 3 Expert

77514 Answers


Level 2 Expert

489 Answers

Are you a Jaguar Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides