Charging System Fault
#21
Thanks that is a good suggestion. When you say take a reading off the jumper terminals. I know where the positive terminal under the hood is. When the tow driver jumped it he put the negative on ground. Is there a negative terminal under the hood as well? I don't recall seeing one.
EKinSC
EKinSC
#22
Join Date: Sep 2008
Location: Damon /Houston, Texas
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look, with the charging system fault light on that meens the alternaotr is not charging and so youre running only on battery power. And with todays heavy electronic cars you will never make it far and would never recommended to drive it. I would say your alt is going out and it is common if theres a oil leak from either the cam cover, front cam timing chain cover on passenger side or oil filter housing. All of which are right above the alternator and drip into it causing it to eventually fail. I have never seen the charge warning come on for a battery and was surpised they just replaced that and not the a;ternator too. It seems intermittent right now which can be a diag problem however i and others know this is a issue when there are leaks into the alt. On the v6 and v8's
#23
I spoke to the service advisor today and they replaced the alternator. He said everything else checked out. A technician took the car home last night and the check engine light came on but not the charge light. They are sorting that issue now and they are going to drive it a couple more days to ensure it's fixed before they give it back to me. I am guardedly optimistic.
EKinSC
EKinSC
#24
As far as I know there's no separate light for battery and alternator. With the sophisticated electrical systems in cars today you can have the light come on, have some electrical appliances in the car shut off automatically, and continue on until the battery reaches charge status from the alternator or you replace it. And alternators are probably one of the easiest components to check..... 14.5V with engine running then it's OK.
Last edited by mleskovar; 10-31-2018 at 12:53 PM.
#25
Got a call today the car was ready to pick up. They replaced the alternator to fix the charge system fault issue. The invoice noted "Once battery was recharged performed charge system test with SDD. Found generator to have failed. Replaced and performed long drive cycles as well as letting vehicle sit. Rechecked battery. Test passed. Charge system working as intended at this time". The check engine light issue was also fixed. Note says "Faults B1D14-11 and P065B-16 active. Found internal failure in overhead console for lights and roof opening panel not working. Replaced console.". The roof was working before so that must've just went out or something. No charge as all work was performed under warranty. Drove the car 25 miles home and everything worked perfectly. I'm going to drive it around this weekend just to make sure but I think the worst has passed.
EKinSC
EKinSC
#26
Got a call today the car was ready to pick up. They replaced the alternator to fix the charge system fault issue. The invoice noted "Once battery was recharged performed charge system test with SDD. Found generator to have failed. Replaced and performed long drive cycles as well as letting vehicle sit. Rechecked battery. Test passed. Charge system working as intended at this time". The check engine light issue was also fixed. Note says "Faults B1D14-11 and P065B-16 active. Found internal failure in overhead console for lights and roof opening panel not working. Replaced console.". The roof was working before so that must've just went out or something. No charge as all work was performed under warranty. Drove the car 25 miles home and everything worked perfectly. I'm going to drive it around this weekend just to make sure but I think the worst has passed.
EKinSC
EKinSC
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#27
I may be too cynical but I don't buy their story. If the alternator was bad the SDD would have picked it up the first time and you don't replace a two year old battery without checking the alternator. I wonder if the 'console' was the culprit? Anyway, I would definitely monitor the battery with a DVM just for peace of mind.
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EKinSC
#28
Most people aren't and that's why auto repairs are so expensive .... because they can. Remember to take voltage measurements at least 1/2 hour after anything that uses electricity so the battery can have time to rebound. Opening doors, touching door handle, lock/unlock, open trunk, radio, etc. It's a good idea to release the hood latch when you get home at night and take a measurement 1/2 hour later. Then don't close hood and take one in the morning before starting off. Red lead to + battery jump terminal under two plastic covers and black lead to any ground (like bolt to body, not on paint though). I'm curious what you measure.
#29
Intermittent charging system failure
Hi all 1st time posting in a forum but hope this helps anyone with this issue, I have had this intermittent fault for a couple of weeks now, the warning light displays but only stays on the dash board for a few seconds then clears, after a trip to my local jaguar dealer they were unable to locate the fault. Annoyed the fault was still happening I called a jaguar specialist and spoke to an engineer who stated this was a common fault, he suggested checking a small cable on the positive battery connection. ( battery monitor cable ) I found this was really loose, I have placed a washer under the bolt and tightened with socket set and its been fine ever since.
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