Hi,

My car won't let me change gear. I normally like to use the auto box and change myself via the J gate 2-5. - sort of manual.

Now it just operates in fully automatic and all gear changes are auto wherever the J Gate position is. Also the "S" sport light seems to have died.

I did see the auto lights flash too. Blinking fdor a while when in any position in J Gate. Now cleared.

Any clues?

Thanks

 

Can you actually move the gear selector past Park? Can you select D, 2, 3, 4, 5, N, and Reverse? What happens when you take the key out of the ignition? Do you get the not in park beep?

Does using the manual override let you select the gear? have you already removed the J-gate assembly to try and assess the problem? Have you by any chance moved the gear selector with the J-gate assembly off?

Remove the J-gate assembly and check for the following:
1. Loose connectors, broken wires.
2. Check the solenoids and microswitches.
3. Check the driver side panel fuses and see if any are dead.
4. What is the condition of your battery?

If none of that works, you could try re-adjusting the the gear selector cable.


For the manual override:


Published: 11-May-2011

2003.0 X100, 307-05

Automatic Transmission/Transaxle External Controls

Brake Shift Interlock Actuator Manual Override (G275668)




GENERAL PROCEDURES

Loading...

1. 
   
   Remove the selector lever blanking screw.
2. 
   
   Using a suitable tool, press and hold the brake shift interlock actuator manual override and simultaneously move the selector lever to the "N" position.
3. Remove the suitable tool.
4. 
   
   Install the selector lever blanking screw.

For the selector cable adjustment:

Published: 11-May-2011

2003.0 X100, 307-05

Automatic Transmission/Transaxle External Controls

Selector Lever Cable Adjustment (G275444)

• 44.15.07
• Selector Cable Assembly - Check And Adjustment

1. Move the transmission selector lever to the "R" position.
2. Remove the floor console.
   For additional information, refer to Section 501-12 Instrument Panel and Console.
3. 
   
   Detach the selector lever cable from the transmission selector lever linkage.
4. 
   
   Detach the selector lever cable from the transmission selector lever bracket.
5. NOTE:
   Fully extend the selector cable, then retract the selector cable one detent.
   
   
   Make sure the selector lever cable is in the "R" position.
6. Make sure the transmission selector lever is in the "R" position.
7. NOTE:
   Make sure the selector cable and transmission selector lever have remained in the "R" position.
   
   
   
   
   Attach the selector lever cable to the transmission selector lever bracket.
8. NOTE:
   Make sure the selector cable and transmission selector lever have remained in the "R" position.
   
   
   
   
   Attach the selector lever cable to the transmission selector lever linkage.
9. NOTE:
   Make sure the selector cable and transmission selector lever have remained in the "R" position.
   
   
   
   
   Adjust the selector lever cable adjustment nuts to lock against the retaining bracket.
   • Do not fully tighten the selector lever cable adjustment nuts.

• Make sure all transmission selector lever positions select the relevant automatic transmission states.
• NOTE:
  When tightening the selector lever cable adjustment nuts, make sure both adjustment nuts are tightened to the specified torque simultaneously.
  
  
  
  
  Tighten the selector lever cable adjustment nuts.
  • Tighten to 20 Nm.
• Install the floor console.
  For additional information, refer to Section 501-12 Instrument Panel and Console.

 

Many thanks.

By leaving it in "Park" with key in ignition switch but no engine on and waggling gear lever the little bit it lets you do in this mode (activating warning beep sounds in car) seems to have cured it. Must be a sticky microswitch at that end (Park position end). Everything including S switch works again and can select "manual" gears rather than being in fully automatic mode.

Took off gear cover and checked the S switch anyhow and cleaned it but it looked perfect.

If it goes again will look deeper. Car has been laid up a while.

 

Huh... weird.

You know what I did to mine? It wouldn't let me put it in gear because the tab on the microswitch had fallen off. I couldn't find it. I ended up removing the gearshift interlock solenoid while I waited for a new tab to arrive in the mail.

 

Not sure about a 2006 car - mine's nearly 10 years older but ........... at the "P" and of my J Gate, there's another microswitch that is operated when the shift-lever is moved across the bottom of the 'J' from auto to manual as it were.

Not sure this picture is an XK8 J Gate, but it's fairly similar - black arrow points to the switch I refer to :

 

If this car has the shifter cable bolted to the trans side then check the 2 bolts are present and snug. (Under car.)

 

I don't think that the 2006 has any mechanical connection between the shifter and the trans. It's purely a switch AFAIK.

 

Ahh - getting other unrelated weirdness now. I've a feeling the battery is knacked.

Will replace it later.

 

It's the same setup as your '04. So, indeed it does have a connection between the shifter and transmission, at least from P -> D. The shifter lever pulls on the gear selector cable that shifts the gears inside the transmission. The microswitches detect key ignition, brake pedal position (via the brake switch), and gear selector position, and depending on that, act on the shift interlock solenoid to allow you to shift the car or to not allow you to shift. However, the J-gate side (5th, 4th, 3rd, 2nd), as for as I know, are electronically controlled.

 

Exactly. It's bolted to the trans side with 2 8mm hex head bolts as I recall.

 

Well I chnged battery - all was ok first ride but now the issue is back.

Sometimes cannot select manual gears (can select gears but it remains in fully automatic mode), the little lights next to gear stick (PRND) which lights to show what position you are in blinks (it's normally steady) the "S" mode does not work and the DSC will not turn on/off.

It's intermittant suggesting an electical fault?

How easy is it to remove the floor console?

tia

 

 

Thanks. I suspect I need to remove the "floor console" - is that easy?

Or can it be done by removing just the J Gate surround (which I did already and it looked quite tight for finding wires etc).

Appreciate the help.

 

I don't really have anything to add to the thread. But I just wanted to say, giandanielxk8, that you are one of the most helpful members around here. Impressive how you take time to try to help here.

And Mark99 , whatever you do, don't let she die. That's one of the most beautiful colors for a X100 and yours looks absolutely stunning! If I could have my pick of colors when choosing a used car, this one would be in my top 3 for sure.

 

Thanks Jeagar.

Not letting her go!

It's funny as it seems to be time related - the longer I'm out the more chance it plays up and won't go into "manual" shift.

As I tend to have heater on full (windows down) I'm thinking it's heat related

Something expands. Will be having a poke about a bit more.

 

Ok took off the J Gate cover and wood surround undid the two switches (S mode and ASL) WD40 in those - they looked good.

With a bit of fiddling got the three other junction boxes (white and yellow plus big white) apart on the left hand side and WD 40'ed them - they looked ok. Wiggled a few wires about.

No joy - worked fine for a bit <thought I'd cured it) but when shifted from 2nd to 5th gear alumination light went blinking again instead of steady, lost the S mode and no "manual" gears selected even though I can move the gear selector freely.

Any idea what next before I throw it over to the specialist Jag garage? I try to help myself before submiting to the garage.

I do wonder if there is a sensor issue as DSC is playing up too. Re-reading the above it could be the microswitch on the J Gate <DevonDave> as you move to "manual". I will try to work out how to access that tomorrow perhaps.

 

Dropped in parts list below for info. How to access number 3 switch? I'll have a look later.

 

 

 

Electrical problems is what I dread the most in a car. Mechanical problems are more straightforward to sort out. I have had to sell cars because nobody could sort the electrical problems out. I can't be of much help to you there but I wish you good luck. She's worth it.

What color is that by the way? Is it a facelift color only? It's really beautiful.