can anyone tell me how to start a 07 XK coupe. I spent the afternoopn cleaning and detailing the car. Messed around inside and generally got into spots. I am giving this info because I am wondering if I flicked a switch or something, because the car will not start now. the brake lights are on and the headlight marker lights are on and they will not shut off. The engine did not get wet as I did not lift the hood. I tryed to boost but did it not start. The battery appears to be fine. I had the car into the dealership yesterday to turn the daytime running lights turned on as it is now a Canadian car. Could they have done something to effect this problem. They say no of course, but cannot give me an solution. It is going to sit on my driveway with a battery charger on so I will not kill the battery as the lights are still on.

 

any luck pbcs?

Did you make sure its securely in park, or neutral before hitting the start button?

 

I'd disconnect the battery for 20 minutes to reset all the computers, then reconnect and try to start it.

 

I disconnected and reconnected the battery and it solved the problem. Question is why did it happen. The battery seamed fine. When I disconnected the battery I put a charger on to see how much juice was in the battery and it appeared fully charged. It still is a mystery.

 

Since the lights were stuck on I'm guessing something got confused in either the CJB or the AJB which locked up the CAN bus preventing anything useful from happening. Maybe the dealers were supposed to reset something when they switched the running lights on or maybe, while you were cleaning, you pressed some switches in some way the computers weren't expecting which confused them.

 

Where the lights on before you jump started the car? Did you jump it backwords. The problem is in one of the 3 modules, CJB, AJB, Instrument Pack. You need to get it to the dealer. Hard reset may fix it by disconnecting the battery neg terminal, or taking both cables off and touching them together for a 30sec. One of those above modules is f'ed up or offline.

 

When you press the starter button, the brake pedal must also be depressed for the car to start.

I had a similar problem a few months ago. I didn't realize it, but I must have inadvertently pumped the brakes before trying to start the car, which caused the brake pedal to feel high and rock hard. As a result, when I put my foot on the brake to start the car, I wasn't making contact with the starter interlock switch. I had to really stand on the brake to depress it far enough to make contact with the interlock switch, and then when I pressed the start button the car started just fine.

 

The problem is solved. By disconnecting the battery and re-connecting this must have re-booted the computer (I guess) when I re-connected I could hear noises like the computer was working. It fixed the problem but I will probably never know what I did to create the problem.

 

Geez, what a scare. Glad you got the problem resolved. I posted in another thread about buying a CAN scan reader tool; your story is positive reinforcement to make the purchase!

 

I was sitting in the car setting up the navigation listening to music via blue tooth when the music stopped and serveral messages light across the screen.... Tsil lights on, front dimmer lights on car won't start. I disconnected the battery and reconnected and nothing. Tsil lights come back on again. Help!

 

Sounds like low voltage gremlins, check the battery voltage.....needs to be above 12.6v after sitting for a time.

 

 

Unfortunately unlike many other cars you just can't sit in the car listening to the radio or even cleaning the interior without excessive drain on the battery. Something to also warn detailers of so they don't run the battery down. When ever I clean the interior or leave the doors open or do anything inside I leave my Ctek plugged in. Go get a 10 amp or larger charger and recharge the battery. Hopefully it will take the charge and then all systems should work.

 

 

all better. just a low battery. she is happy again.

 

Yep, I've learned to suspect voltage first when the gremlins pop up, glad all is right with the world now.