Adaptive Front Lighting Alarm
#1
Adaptive Front Lighting Alarm
I replaced the glove box on my 2008 XKR convertible because of some cosmetic issues (broken door soft return arm). The car has a Jaguar Audio Connectivity Module installed/attached in the glove box so I had to move this hardware over to the new glove box also. The passenger door was open for awhile working on the car. Once the work was completed I restarted the car and noticed that the engine didn't crank as well as it usually does, like the battery was run down slightly, but seemed to start and run fine. While sitting in the garage with the engine running I moved the steering wheel and noticed that the power steering didn't seem to be functioning. I switched the engine off and restarted the engine. Power steering seemed to function normally. But now I have an Adaptive Front Lighting Alarm. I have not driven the car since this work and occurrences. Did I get the Adaptive Front Lighting System out of calibration/synch with the steering movement? The owners manual says this can happen when moving the steering wheel with the ignition in the OFF position. I had the engine running. Elsewhere in this forum there are comments about doing a system reset. Would a reset be necessary to clear the alarm? If that is necessary how is a rest done to clear this alarm? Thanks for the help and guidance.
BD
BD
#2
The probabilities are that your battery is run down and in need of charging or replacement. These cars electrical systems are very sensitive and demanding. If it were me, I would drive the XKR a good 30 to 45 minutes and then get a reading as to the voltage across the battery anodes. If your reading is not at 12.6V after sitting for several minutes with every thing off, either get the battery fully charged, making sure it will maintain the 12.6 voltage or replace the battery with a fully charged new one.
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guy (01-26-2024)
#4
I have driven the car over the last several days as was suggested, more than 30 minutes on several occasions. I checked the battery voltage after these drives and read 12.4 to 12.5 volts.I also placed a CTEK battery maintainer on it, after 12 hours I read 12.4 volts across the battery terminals. I bought this car approximately 6 months ago. Shortly after the purchase I had a shop do an electrical test on the battery and charging system. The test showed the battery health at 100% and the battery charge at 63%. The charging system was normal (load off = 13.98v, load on = 13.93v). 12.4 v seems low to me after having the CTEK connected for 12 hours. I did a hard reset of the system (disconnected the battery leads and jumper them together for 60 min to discharge any system capacitors). After all this I still have the Adaptive Front Lighting Alarm. Any comments or ideas? My next idea would be to take the car into another shop again and have the electrical system tested again and possibly replace the battery.
#5
#6
Check the grounds lugs for the the headlights:
Check this thread out:
https://www.jaguarforums.com/forum/x...cators-240302/
Check this thread out:
https://www.jaguarforums.com/forum/x...cators-240302/
#7
I checked this ground connection. It was secure. I removed the nut holding the 2 connections anyway and cleaned and filed the connection area to assure a good, clean electrical connection. I still have the ALS flashing alarm on the dash after doing this. I did notice that I have a bulb burned out on the drivers side headlight area. It is a very small bulb in the upper inside area of the headlight assembly. Could this failed bulb be causing the alarm?
BD
BD
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#9
Join Date: Apr 2008
Location: Ottawa, Ontario, Canada
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ALS is nicely described in the workshop manual. I don’t think the cornering lights will initiate an ALS error…. but I have known to be wrong on very few occasion. Trouble is I don’t have access to the workshop manual at this time.
Of course we could mitigate the guessing by actually having the value if the code that is thrown…
Incidentally, as mentioned by others, a 12.4v battery is certainly a major warning sign…
Of course we could mitigate the guessing by actually having the value if the code that is thrown…
Incidentally, as mentioned by others, a 12.4v battery is certainly a major warning sign…
Last edited by guy; 02-04-2024 at 05:28 PM.
#10
#11
BD
Last edited by BLD; 02-05-2024 at 12:53 PM.
#12
ALS is nicely described in the workshop manual. I don’t think the cornering lights will initiate an ALS error…. but I have known to be wrong on very few occasion. Trouble is I don’t have access to the workshop manual at this time.
Of course we could mitigate the guessing by actually having the value if the code that is thrown…
Incidentally, as mentioned by others, a 12.4v battery is certainly a major warning sign…
Of course we could mitigate the guessing by actually having the value if the code that is thrown…
Incidentally, as mentioned by others, a 12.4v battery is certainly a major warning sign…
#13
Join Date: Apr 2008
Location: Ottawa, Ontario, Canada
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Lighting - Exterior Lighting - Headlamps.
Well how about that…. the section marked Cornering Lamps - vehicles with AFS.
U3003-16, B1D68-01, B1D69-01, B1C98-11… and -13. cool.
Is that 12.63 reading taken 6 hours after any running or charging event?
Well how about that…. the section marked Cornering Lamps - vehicles with AFS.
U3003-16, B1D68-01, B1D69-01, B1C98-11… and -13. cool.
Is that 12.63 reading taken 6 hours after any running or charging event?
Last edited by guy; 02-05-2024 at 01:17 PM.
#15
ALS is nicely described in the workshop manual. I don’t think the cornering lights will initiate an ALS error…. but I have known to be wrong on very few occasion. Trouble is I don’t have access to the workshop manual at this time.
Of course we could mitigate the guessing by actually having the value if the code that is thrown…
Incidentally, as mentioned by others, a 12.4v battery is certainly a major warning sign…
Of course we could mitigate the guessing by actually having the value if the code that is thrown…
Incidentally, as mentioned by others, a 12.4v battery is certainly a major warning sign…
B1C98-
13
Left Corner Lamp circuit
defect - Circuit open
· Left Corner Lamp circuit
open
NOTE:
On Adaptive Front Lighting
System (AFS) equipped
vehicles the power feed to
the Corner Lamp is
supplied via the Headlamp
Power Module
Refer to the electrical circuit
diagrams, and check Left corner
lamp circuit for open circuit
So that little tiny bulb that looks to me like it doesn't do much will disable the ALS???
BD
#17
Update. I found a shop in Tucson (Scott Fricks Automotive Inc) that could read the Jaguar error codes. There was a bunch, probably over 100. He reset them all and when that was done the ALS alarm cleared. He gave me a print out of the errors. He said the errors probably came in when the battery was disconnected. Driving back home from the shop (about 20 miles) the ALS alarm has NOT returned.
Scott Fricks didn't charge me for this service. I will go back to him for additional work.
I haven't replaced the bulb yet because I haven't figured out how to get to it. See my post (#11) above.
Scott Fricks didn't charge me for this service. I will go back to him for additional work.
I haven't replaced the bulb yet because I haven't figured out how to get to it. See my post (#11) above.
#20
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