Outside mirrors are goofy...
#1
02-14-2014, 08:42 PM
Outside mirrors are goofy...
...primarily the passenger side mirror which more often than not doesn't hold the preset position. I usually need to readjust it each time I start.
Occasionally the steering wheel does not return to the preset position.
Any clues as to where I need to start having my indie Jag shop start looking?
Thanks.
Occasionally the steering wheel does not return to the preset position.
Any clues as to where I need to start having my indie Jag shop start looking?
Thanks.
#2
02-14-2014, 10:20 PM
Veteran Member
...primarily the passenger side mirror which more often than not doesn't hold the preset position. I usually need to readjust it each time I start.
Occasionally the steering wheel does not return to the preset position.
Any clues as to where I need to start having my indie Jag shop start looking?
Thanks.
Occasionally the steering wheel does not return to the preset position.
Any clues as to where I need to start having my indie Jag shop start looking?
Thanks.
Are you setting the memory on panel that shows numbers 1,2,3,M?
The get mirrors, steering wheel and seats exactly where you want them. then press the M for 3 seconds. That should lock it all in.
I use #1 for my seating position, mirrors and steering positioning and #2 to make the seat go back to get out of the car.
Hope this helps with your problem.
#3
02-14-2014, 11:43 PM
Senior Member
I've noticed this too, and I use the #1 memory. My biggest gripe is that the passenger mirror does not return all the way to the required position. Maybe it's because I use a pretty extreme "next lane" type view rather than the old fashioned "down the line" position for the mirrors.
The steering wheel not moving happens at random times. My car is a 2008 XKR.
The steering wheel not moving happens at random times. My car is a 2008 XKR.
#4
02-15-2014, 05:41 AM
Veteran Member
The two things are controlled by different modules - the mirror by the driver's door module, and the steering column by the instrument panel (which is a 'smart' device and not just a bunch of lights & dials). So the problems may not have the same source.
When you talk about the passenger mirror not returning, I assume you have the car set to automatically fold the mirrors whenever you park. As a short-term fix, perhaps disable that function via the touchscreen, so the mirror just stays in place. You can always 'park' the mirrors if you need to by pressing both switches on the mirror control panel.
When you talk about the passenger mirror not returning, I assume you have the car set to automatically fold the mirrors whenever you park. As a short-term fix, perhaps disable that function via the touchscreen, so the mirror just stays in place. You can always 'park' the mirrors if you need to by pressing both switches on the mirror control panel.
#5
02-15-2014, 08:15 AM
Random memory function question... Are the memory presets tied to the smart key? If smart key 1 gets in, will it have a different preset lineup than if smart key 2 entered the car?
My lexus had different memory for each smart key, and I'm wondering if the Jag works the same way. I couldn't find anything about it in the manual, so I assume it doesn't.
My lexus had different memory for each smart key, and I'm wondering if the Jag works the same way. I couldn't find anything about it in the manual, so I assume it doesn't.
#6
02-15-2014, 08:24 AM
Veteran Member
So, no, as far as I'm aware.
#7
02-15-2014, 09:59 AM
Thanks for the replies.
I've tried the M 1,2,3 positions and when I go back and forth the pax mirror goes wherever it wants to. Occasionally the driver's mirror also goes awry.
I have the "antiquated" 2007 XK which I don't believe has the power fold mirrors. However, what I do have is the power extend/retract antenna on the rear fender that I bet you wish you had.
Yep, I've pulled the fuse.
Is the memory module in the door with the buttons or someplace else?
Best,
I've tried the M 1,2,3 positions and when I go back and forth the pax mirror goes wherever it wants to. Occasionally the driver's mirror also goes awry.
I have the "antiquated" 2007 XK which I don't believe has the power fold mirrors. However, what I do have is the power extend/retract antenna on the rear fender that I bet you wish you had.
Yep, I've pulled the fuse.Is the memory module in the door with the buttons or someplace else?
Best,
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#9
02-15-2014, 03:22 PM
#10
02-15-2014, 05:06 PM
Senior Member
I have a similar issue on the driver's side mirror. When recalling either of my seat positions (1 and 3 - I keep a backup after my wife accidentally over-wrote mine with hers one day) the driver's side mirror mostly points skyward, or occasionally right down to the ground. I did some digging around and it looks like the fix is a new motor for that mirror. I guess therefore that the motor maybe isn't just a motor, could be the memory/control module for the motor too.
Thinking about it, it's actually the same mirror, just that my car is right-hand drive and yours is wrong-hand drive
Thinking about it, it's actually the same mirror, just that my car is right-hand drive and yours is wrong-hand drive
#11
02-15-2014, 06:38 PM
Veteran Member
Each door has a module in it which controls the functions on its side:
It is possible that the automatic movement is being stopped due to friction that is impeding the mirror movement (this section is about seats, steering column and mirrors):
What this means is: if any of the movements are blocked for more than 1/5 of a second, that movement is cancelled. If you then request a manual move, it will try again for 1/2 a a second. So (and this is just a guess), if the mirror was sticking a bit, the automatic movement won't always work, but when you press the manual adjustment, it gives it a long enough kick to move it forward.
Alternatively, the signals from the module that holds the memory settings may be getting lost/corrupted. It's not 100% clear where the settings are stored, but the manual seems to use the phrases "Memory Control Module" and "Seat Module" interchangeably. I think that means the settings are stored in the seat modules, which are under each seat.
Anyway: the good news is that there are a whole bunch of diagnostic codes for all this stuff, so a Jag dealer or indy specialist with the approved system should be able to pinpoint the problem.
Movement of the door mirrors is controlled from a switch pack located on the drivers door. The switch pack contains 2 non-latching mirror select buttons labelled 'L' and 'R' and a 4-way mirror movement switch. Door mirror movement commands are transmitted to the driver's door module over the LIN (local interconnect network) bus. The drivers door module transmits any mirror movement commands to the passenger door module over the medium speed CAN (controller area network) bus.
Movement of the door mirrors is carried out by the respective door module. The door modules provide supply and ground paths to the mirror motors and monitor mirror position via potentiometers located in the mirror housings.
Movement of the door mirrors is carried out by the respective door module. The door modules provide supply and ground paths to the mirror motors and monitor mirror position via potentiometers located in the mirror housings.
Stall Detection
Seat, steering column and mirror motors are deemed to have stalled if there is no change in the inputs that are received from the corresponding feedback sensors for 200 ms (seat).
If a stall condition is detected then the drive to that axis is cancelled for the remainder of that memory operation (memory recall) or until the switch is re-selected (manual movement).
If the motor movement has stopped due to loss of sensor feedback, either stall or sensor failure, then that axis may be activated again, to move past the stall position, by re-selecting the appropriate switch and pressing for longer than 2 seconds. This allows control of the motor to be maintained if sensor feedback is lost.
Upon re-selection of movement, if sensor pulses are detected then the motor will continue to be driven until the switch is released or another stall condition is detected. If sensor feedback is not detected then the motor is only driven for 0.5 second and then stops until the switch is released and then pressed again, when a further 0.5 second of activation is permitted, and so on, this is known as inch mode.
For all seat motor manual movements, whenever a motor is driven and a stall occurs, the memory control module records the position at which the stall occurred. If movement occurs beyond a stall position, then that position is erased from the control modules memory. This will always allow movement past a previously recorded stall position once movement has been registered beyond that position. This is the case for both manual and memory movement.
Seat, steering column and mirror motors are deemed to have stalled if there is no change in the inputs that are received from the corresponding feedback sensors for 200 ms (seat).
If a stall condition is detected then the drive to that axis is cancelled for the remainder of that memory operation (memory recall) or until the switch is re-selected (manual movement).
If the motor movement has stopped due to loss of sensor feedback, either stall or sensor failure, then that axis may be activated again, to move past the stall position, by re-selecting the appropriate switch and pressing for longer than 2 seconds. This allows control of the motor to be maintained if sensor feedback is lost.
Upon re-selection of movement, if sensor pulses are detected then the motor will continue to be driven until the switch is released or another stall condition is detected. If sensor feedback is not detected then the motor is only driven for 0.5 second and then stops until the switch is released and then pressed again, when a further 0.5 second of activation is permitted, and so on, this is known as inch mode.
For all seat motor manual movements, whenever a motor is driven and a stall occurs, the memory control module records the position at which the stall occurred. If movement occurs beyond a stall position, then that position is erased from the control modules memory. This will always allow movement past a previously recorded stall position once movement has been registered beyond that position. This is the case for both manual and memory movement.
Alternatively, the signals from the module that holds the memory settings may be getting lost/corrupted. It's not 100% clear where the settings are stored, but the manual seems to use the phrases "Memory Control Module" and "Seat Module" interchangeably. I think that means the settings are stored in the seat modules, which are under each seat.
Anyway: the good news is that there are a whole bunch of diagnostic codes for all this stuff, so a Jag dealer or indy specialist with the approved system should be able to pinpoint the problem.
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TFlan (02-15-2014)
#12
02-15-2014, 06:45 PM
Senior Member
The two things are controlled by different modules - the mirror by the driver's door module, and the steering column by the instrument panel (which is a 'smart' device and not just a bunch of lights & dials). So the problems may not have the same source.
When you talk about the passenger mirror not returning, I assume you have the car set to automatically fold the mirrors whenever you park. As a short-term fix, perhaps disable that function via the touchscreen, so the mirror just stays in place. You can always 'park' the mirrors if you need to by pressing both switches on the mirror control panel.
When you talk about the passenger mirror not returning, I assume you have the car set to automatically fold the mirrors whenever you park. As a short-term fix, perhaps disable that function via the touchscreen, so the mirror just stays in place. You can always 'park' the mirrors if you need to by pressing both switches on the mirror control panel.
#13
02-15-2014, 07:13 PM
#14
02-15-2014, 07:36 PM
Each door has a module in it which controls the functions on its side:
It is possible that the automatic movement is being stopped due to friction that is impeding the mirror movement (this section is about seats, steering column and mirrors):
What this means is: if any of the movements are blocked for more than 1/5 of a second, that movement is cancelled. If you then request a manual move, it will try again for 1/2 a a second. So (and this is just a guess), if the mirror was sticking a bit, the automatic movement won't always work, but when you press the manual adjustment, it gives it a long enough kick to move it forward.
Alternatively, the signals from the module that holds the memory settings may be getting lost/corrupted. It's not 100% clear where the settings are stored, but the manual seems to use the phrases "Memory Control Module" and "Seat Module" interchangeably. I think that means the settings are stored in the seat modules, which are under each seat.
Anyway: the good news is that there are a whole bunch of diagnostic codes for all this stuff, so a Jag dealer or indy specialist with the approved system should be able to pinpoint the problem.
It is possible that the automatic movement is being stopped due to friction that is impeding the mirror movement (this section is about seats, steering column and mirrors):
What this means is: if any of the movements are blocked for more than 1/5 of a second, that movement is cancelled. If you then request a manual move, it will try again for 1/2 a a second. So (and this is just a guess), if the mirror was sticking a bit, the automatic movement won't always work, but when you press the manual adjustment, it gives it a long enough kick to move it forward.
Alternatively, the signals from the module that holds the memory settings may be getting lost/corrupted. It's not 100% clear where the settings are stored, but the manual seems to use the phrases "Memory Control Module" and "Seat Module" interchangeably. I think that means the settings are stored in the seat modules, which are under each seat.
Anyway: the good news is that there are a whole bunch of diagnostic codes for all this stuff, so a Jag dealer or indy specialist with the approved system should be able to pinpoint the problem.
How, in the name of Prince Harry's escapades, do you come up with these detailed and spot on responses? Regardless of the issue someone posts you seem to be able to provide a reference.
You are a gem and this is why this forum is so great.
Warmest regards,
#15
02-15-2014, 08:23 PM
Veteran Member
Thanks. 
Mostly, it's having PDF copies of the XK 4.2 and 5.0 workshop manuals and associated wiring diagrams. They're available on eBay, so not hard to get hold of. The only value-add from me is experience in troubleshooting problems involving things outside my expertise - you need to have a basic understanding and then the ability to read and interpret the detailed techie stuff. Plus I have the time and the interest.
Mostly, it's having PDF copies of the XK 4.2 and 5.0 workshop manuals and associated wiring diagrams. They're available on eBay, so not hard to get hold of. The only value-add from me is experience in troubleshooting problems involving things outside my expertise - you need to have a basic understanding and then the ability to read and interpret the detailed techie stuff. Plus I have the time and the interest.
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