 | Home > Technical > Battery Light, No Rev Counter and Temp Gauge at the top? |
 
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| x-isle Member Since: 26 May 2011 Location: Midlands Posts: 1327   
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This has happened twice now and on both occasions there has been a pattern. It hasn't happened everytime, just twice in the last 2 weeks.
Engine turned off (after being driven), keys left in the ignition, then about 5 mins later, start the engine and the battery light remains on and the Rev Counter isn't working and the temp gauge goes right to the top (temp is actually normal operating temp). So, stop the engine, restart, still the same, stop the engine restart again, and all goes back to normal. I know that normally if the battery light is on and rev counter stops, it's usually a case of the alternator not delivering power, but didn't think the temp gauge gets affected. Both times, after I've fixed it, I thought about looking at the battery power on OBD2 as I've got one connected all the time but forgot both times. I had a lot of things connected today (didn't last time), Sat Nav, GPS, Phone, VHF radio and lights on and everything drove fine whilst the problem was there, so suspect that the alternator is fine, just a glitch somewhere. Anyone ever seen this? Craig Rogers 2007 Puma 110 XS 2011 Evoque Coupe Dynamic Lux www.craigrogers.photography |
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8th Mar 2015 4:47pm |
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| x-isle Member Since: 26 May 2011 Location: Midlands Posts: 1327
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Thanks for the answer, but the battery is fine. It's only 2 months old and never had any issues with it. It's often left for a week without starting and always fires up fine.
I don't think there's anything wrong with the electrics, but maybe something wrong with the control of them or maybe just the dash itself. Craig Rogers 2007 Puma 110 XS 2011 Evoque Coupe Dynamic Lux www.craigrogers.photography |
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8th Mar 2015 5:13pm |
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| Fifth Horseman Member Since: 08 Mar 2011 Location: Lanarkshire Posts: 323 
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Do you always use an ultra gauge or similar, see this and this thread and check the relays and large fuses under the drivers seat, fuses 15 and 30 in the main fuse box and also check the plug into the rear of the instrument panel.
On the Puma, the rev counter signal comes from the engine ECU via the CAN-Bus, as does the charge indicator light signal. The alternator signals are fed to the engine ECU. [edit] Just re-read your first post, try leaving your diagnostic tool disconnected to see if that stops the problem re-occuring. |
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8th Mar 2015 7:18pm |
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| x-isle Member Since: 26 May 2011 Location: Midlands Posts: 1327
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Ah Bingo!
There is another bit to this pattern that I've now realised...... I have an OBDLink MX device constantly connected (the OBD port is repositioned, hidden away), both times this happened, my phone was running Torque which is connected to the OBDLink MX via Bluetooth. Wierd how it's never happened before, but this last 2 weeks it's happened twice.  
Big thanks! Craig Rogers 2007 Puma 110 XS 2011 Evoque Coupe Dynamic Lux www.craigrogers.photography |
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8th Mar 2015 7:26pm |
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686 |
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8th Mar 2015 7:41pm |
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| unclesam Member Since: 09 Dec 2018 Location: Krakow Posts: 13  
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Same problem here.
Got occasional issues as described in this thread: Batt light on, rev on 0 but engine runs fine, Temp on max Couldn't figure out the reason why this happened. Now it seems it happens always when I go somewhere far. Never at home. Started to look for the symptoms on the internet and after hours and hours found some threads on these including this one! Seems i have the same kind of gremlin here. Funny enough it happened only on long trips. Then analysing coincidences, I've noticed that when I drive locally or on close distances I rarely plug my BT dongle in. Thus I don't recall it ever happened on short trips around home. Instead when going far and offroad I always use it to monitor engine params , temp , etc. And I leave it plugged in. In this case it sometimes happens (i.e. sometimes twice a day). Not always, but much more often. OFC disconnecting battery solves the problem ... Im was wondering why - ofc it does so as it cuts the power to the BT Dongle and ECU so all is fresh again. Im going to leave it connected now and see if it happens when Im doing lots of short trips. Will keep you posted. EDIT: One more coincidence; im was also using Torque as the dashboard software. |
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2nd Jul 2020 6:16pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6605 
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This set of problems (battery light, 0 rpm, temp at the top) means the instrument pack has lost incoming CAN bus messages.
It does seem that some OBD dongles affect the bus and therefore stop the CAN messages from the ECU either being transmitted or received.  1988 90 Td5 NAS soft top
2015 D90 XS SW |
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3rd Jul 2020 8:27am |
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| unclesam Member Since: 09 Dec 2018 Location: Krakow Posts: 13
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indeed , especially that I get errors
U0100 Lost Communication With ECM / PCM A P1643 CAN Link Engine Control Module/Transmission Control Module Circuit/Network Might be because Torque on the Android Phone is running in background and there is some colission/coindicente/timing issue on the CAN bus disturbing communication just at the very beginning of the enigne run cycle . |
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3rd Jul 2020 8:41am |
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| bear100 Member Since: 22 Mar 2010 Location: South Wales Posts: 1917 
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i had this also, it was crusty terminals on the ultragauge may be caused by condensation?
i used a terminal contact cleaner and a tooth brush on the OBD plug and then coated with ACF50, not had a problem with the terminals in the last 6 years!! 2016 Range Rover Autobiography 4.4 TDV8 2010 110 XS Utility 2.4TDCI 2010 Range Rover Sport TDV8 (gone) 2007 Discovery HSE TDV6 (gone) 1993 110 csw 200 tdi (gone) 1994 90 HT 300 tdi (gone) 1994 discovery 300tdi (gone) 90 hybrid 3.5 v8 (gone) Range rover bobtail 3.5 v8 (gone) Last edited by bear100 on 3rd Jul 2020 7:00pm. Edited 1 time in total |
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3rd Jul 2020 2:55pm |
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| unclesam Member Since: 09 Dec 2018 Location: Krakow Posts: 13
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Will check this as my Puma is my2007 so that might be the case. However Im suspecting rather the OBD-BT adapter incompatibility issue than any contact/condensation problem.
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3rd Jul 2020 6:03pm |
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| DeCA Member Since: 18 Aug 2020 Location: Vlaanderen Posts: 8  
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Hi, where do I find the OBD-plug? I am new here.... thx, Carl |
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18th Aug 2020 2:14pm |
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| unclesam Member Since: 09 Dec 2018 Location: Krakow Posts: 13
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Pick any proper OBD-BT adapter.
I bought mine here https://viaken.pl/pl/polski-elm327-v3-blue...-2015.html With this adapter and proper soft I can read i.e. injector corrections, etc. It cant read Security module - at least Im not aware it can. |
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18th Aug 2020 2:23pm |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
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Behind the panel beneath the steering wheel. Darren 110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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18th Aug 2020 5:24pm |
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| DeCA Member Since: 18 Aug 2020 Location: Vlaanderen Posts: 8
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Hi, I cleaned everything, stil have de same problem!
Even I reconnected de the brand new battery.. |
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12th Sep 2020 2:57pm |
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