Peugeot 3008 Hybrid4 12v battery drain

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Dormouse
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by Dormouse »

Where are maxi fuses 4 and 5? can they get damp or dirty?
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by lorddevereux »

So F5FF is a pretty normal fault to see, more or less comes up every time you disconnect the battery and it does no harm.

The CAN error codes to the HCU are more noteworthy - although I don't have a Hybrid4 myself so I don't know if this is a "known" thing on these cars (in general terms, some PSA CAN/system related codes are ghost codes because of random bugs in the network from time to time).

Maxi fuses are under the under-bonnet fusebox, around 6 massive fuses (might need to remove the ECU to get to them). Certainly worth checking, but you'd probably have some more major problems if one of them was damaged.

How did the ground for the HCU look?

Absolutely is worth checking the negative lead on the battery & also the point on the car to which that connects.
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by Dormouse »

magic! thanks very much. It is adding up in my checks and thought processes that poor connections and more than one issue is at play in a domino effect. I keep getting low supply messages all over the place still. The main fuse box area is not immune from damp and, while I don't relish the prospect, removing the battery and the fuse box/ECU and checking for poor connections might be beneficial in the long term as there are 2 fuses there that supply the BSI as well as the main earth return. Hopefully repairs are not needed. Any other thoughts are welcome. I will update this thread as I progress the repair. The torn ligaments in my knee are improving so hopefully by next week I will be able to do light faffing - if SWMBO allows (an NHS Orthopaedic Nurse who left her TLC at work).
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Dormouse
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My Cars: Peugeot 3008 Hybrid4, Fiat Ducato, Morris Mini.
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by Dormouse »

Maybe I am old fashioned but is the wire used in modern looms really ok with such slender wires? I have seen heavier gauge earth wires behind MGB dashboard lights than the ones on this 3008. Mind you, the number of wires in a modern loom has increased too.
lorddevereux
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by lorddevereux »

The wires are designed down to a minimum spec, but there are quite a few of them. The weakness is usually when one or more points gets corroded (especially the main battery terminal). There is also sometimes problems around the rear lights on PSA vehicles, where all lights being on overloads the single earth wire for the cluster and causes failure.

Hopefully your knee has improved now! I think definitely you are looking at a bad earth or short somewhere. If nothing is obvious, the next move is to play the long game. Disconnect the battery and pull out all the fuses. Then reconnect and add them back one-by-one, leaving for a day at a time, until you notice the battery drain. Then you'll have at least narrowed it down to a particular circuit or component, and can investigate further!
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plus notable cars I have owned :- Studebaker 1921, Daimler Consorts, Mercedes 220 Pontoon, Simca 1301, Austin Metropolitan, lots and lots of Minis, both steel and fibreglass bodied, Fiat 500F, Citroen GSA's, Skoda Estelle 120 Rally replica, DKW 1000S, Triumph Herald Estate, Warwick GT (very briefly)
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by Dormouse »

exactly what I am doing. So far not found any obvious issues. I have had the 12v battery disconnected for over 3 weeks now. I fully charged it then and left it sitting. It had a surface charge voltage of 12.7 v which dropped to 12.55 v when I did the first of two current draw checks. This produced the following - 2.7 a >1.2a > 0.8 a >0.04 a over 85 seconds. After 10 mins it was still drawing 0.04 a at 12.55 v. There were no obvious dash lights. I disconnected the battery again, left it 10 mins and did the current draw at reconnection again for 10 mins. Results - 3.6 a > 2.6 a > 1.3 a > 0.07 a over 95 secs and stayed there for 10 mins, voltage remained at 12.55 v. No obvious dash lights. waited 20 mins and then did a BSI reset making sure the key fob was kept well away from the car until needed. After that the battery was still 12.55 v and went to 14.25 v once engine went into Ready. Took the car to the garage to blow up tyres and air bag light came on and then amber Engine Repair light. Switched off at the garage. On the way home the air bag light came on then the amber Engine Repair light and then the red Engine Repair light followed by limp mode all in 1 1/2 miles (5 mins ). The battery was at 12.6 v when I stopped at home and remained there for an hour. Now I am trying to work my way through the car bit by bit.
Last edited by Dormouse on 10 May 2021, 20:16, edited 2 times in total.
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by white exec »

...or pull all the fuses, disconnect one of the main battery leads, and re-link with a multimeter set to Amps.
Insert fuses one at a time, and see which one makes the drain current jump.

An acceptable residual (parked-up) drain would be around 50mA or less. Much more than that is a problem.

Also suspect there could be something UNFUSED, which will pull current, even with all the fuses removed.
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by Dormouse »

Yes. The 0.07 perturbs me.
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white exec
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previously 1989 BX19RD, 1998 ZX 1.9D auto, 2001 Xantia 1.8i auto
and lots of Rovers before that: 1935 Ten, 1947 Sixteen, 1960 P5 3-litre, 1966 P6 2000, 1972 P6 2000TC, and 1975 P6B 3500S
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by white exec »

Too much.
Chris
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My Cars: Peugeot 3008 Hybrid4, Fiat Ducato, Morris Mini.
plus notable cars I have owned :- Studebaker 1921, Daimler Consorts, Mercedes 220 Pontoon, Simca 1301, Austin Metropolitan, lots and lots of Minis, both steel and fibreglass bodied, Fiat 500F, Citroen GSA's, Skoda Estelle 120 Rally replica, DKW 1000S, Triumph Herald Estate, Warwick GT (very briefly)
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by Dormouse »

will let everyone know what I find ( or don't find )
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plus notable cars I have owned :- Studebaker 1921, Daimler Consorts, Mercedes 220 Pontoon, Simca 1301, Austin Metropolitan, lots and lots of Minis, both steel and fibreglass bodied, Fiat 500F, Citroen GSA's, Skoda Estelle 120 Rally replica, DKW 1000S, Triumph Herald Estate, Warwick GT (very briefly)
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by Dormouse »

Good news. We have finally tracked a fault on the LIN network to a shutter valve at the front of the engine. Hurrah! Parts on back order - bummer! And to add insult to injury, half the bolts on the front bumper are just spinning and there is NO WAY of getting access without all the gubbins out of the way! Will get the valve fitted and report on progress. Fingers crossed that this gets the Engine Repair/ battery drain sorted in one go.
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Dormouse
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My Cars: Peugeot 3008 Hybrid4, Fiat Ducato, Morris Mini.
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by Dormouse »

So far I have not been able to find any bad earths or obvious wiring or fuse box issues but by simply checking them one by one I may have cured some poor connections inadvertently.
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and lots of Rovers before that: 1935 Ten, 1947 Sixteen, 1960 P5 3-litre, 1966 P6 2000, 1972 P6 2000TC, and 1975 P6B 3500S
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by white exec »

Sometimes, just plodding through, fuse by fuse, is the best way to go.
Good that you might have swatted a few bits and pieces along the way.
Let us know the final result, and details of the component that caused it.
Chris
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My Cars: Peugeot 3008 Hybrid4, Fiat Ducato, Morris Mini.
plus notable cars I have owned :- Studebaker 1921, Daimler Consorts, Mercedes 220 Pontoon, Simca 1301, Austin Metropolitan, lots and lots of Minis, both steel and fibreglass bodied, Fiat 500F, Citroen GSA's, Skoda Estelle 120 Rally replica, DKW 1000S, Triumph Herald Estate, Warwick GT (very briefly)
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by Dormouse »

[-o< [-o< [-o< Just an update on progress. Still no sign of parts from Peugeot and, speaking to others, I am not alone in waiting for parts. Couldn't find any bad earths at the Hybrid Controller but tested, cleaned and retightened it. Same up front. So far I haven't found anything else but until it is all reassembled and check run we won't know. Ho. Hum.
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Dormouse
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My Cars: Peugeot 3008 Hybrid4, Fiat Ducato, Morris Mini.
plus notable cars I have owned :- Studebaker 1921, Daimler Consorts, Mercedes 220 Pontoon, Simca 1301, Austin Metropolitan, lots and lots of Minis, both steel and fibreglass bodied, Fiat 500F, Citroen GSA's, Skoda Estelle 120 Rally replica, DKW 1000S, Triumph Herald Estate, Warwick GT (very briefly)
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Re: Peugeot 3008 Hybrid4 12v battery drain

Post by Dormouse »

Here we go! I am going to put up some pictures and update this thread as I run the car to check it is ok.
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Last edited by Dormouse on 14 Jun 2021, 14:08, edited 1 time in total.
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