Vauxhall/Opel Astra H 1.6 P0685 crank no start. Fault finding and repair.
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- Опубліковано 14 жов 2024
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Thank you
Hi
This car came to me as a non runner, crank no start.
A quick scan, revealed a P0685...
What looked to be a bit more complicated, soon after some investigation, was easy repairable...
Hope you enjoy the video.
Any questions or comments put them below.
Like always, thank you for watching!
Great diagnostic skills, however I’m confused why did the car not start initially when you bypassed the main relay ?
Most likely that broken wire was feeding something else required for the engine to start...
Thank you for watching and for your comment!
@@LMAutoRepairs hello sir, i have one astra g 1.6 16v and his crank but no start and when crank engine ligjt blinding, i slow in down with 2 nd gear for start engine sometimes i out dhe crankshaft sensor cable car starting and put cable when car is start what to check or change sir
Hi....yes..its the same vehicle !
Well, is part of it, but runs independently... otherwise I would have no crank...
Well, funnily enough..my fault code is P1600 replace ECU..but sometimes the vehicle wont crank but then does..I thought there maybe a connection with what you diagnosed on your vehicle..I cant seem to find schematics on the starting circuit!.. Anyway..my issue...many thanks for your returned messages..take care.
Mate, you are a star, I sent my ECU for repair as it had the same fault as this, they sent it back saying my ECU was ok, I started searching youtube and came across you, and you were 100% right a broken wire in the harness 10-minute fix, so wanted to say a massive thank you to you sir
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That's great!
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Out of interest, was it the same broken wire that had originally been soldered on to the side of the wire in the connector?
Think everyone wishes they had a mate like you. Nice job 👍
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Thanks, for watching and for your comment!
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Wow my zafira has been off the road for 3 weeks now been looking all over the internet for help come across this video last night followed your steps and i had the same problem as you all fixed now can't believe it was just a small piece of wire.thank you
That's great!
Thank you for watching and for your comment!
Thank you sir for your support. I had exactly the same failure codes and the same failure mode. After fixing the brown-yellow cable, the engine is running fine 😅.
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Here comes a big thank you from Germany. I had the exact same problem on my Zafira and thanks to your video I was able to get the car running again with just a bit of soldering. Wish you all the best !!!
That's great!
Thanks for the feedback, for watching and commenting!
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I can't thank you enough for this video. My wife's astra had exactly the same issue. I found the wiring corroded and broken along the same loom but further along towards the battery. Thank you so very much. Kind regards Melvin Jarvis
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You are a very patient man, well done.
Thanks!
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This video helped me trace a problem iv had going on for about 8 months. Thank you for making the video 👍👍👍
That's great!
Thank you for watching!
Nice video mate !
I did not have the same issue but i used your diagram for the Simtec MS 75 ECU system (Opel uses more systems).
Low voltage to engine ECU - Replace ECU code - Brake lights on all the time.
Checked all the powers and had a wire with 2.8 V on it. Corrosion in de taped part next to the connector. Fixed the wire and it runs again.
I post this for a future reader with the fault. The break lights go on by the ecu, i think it runs on can low, did not see anything in the can signal.
Cheers people !
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Thank you for watching and for your comment!
I had this problem with an Astra
But unfortunately was the ECU itself
The wires were intact
Great video as usual, Keep it up the great work 💪
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Thanks, for watching and for your comment!
Sundays starting great with your videos. Regards from 🇸🇮🍻
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Thanks!
Means a lot to me!
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Nice one . Smart to take that fusebox out and of course the basic powers and grounds check .
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Thanks!
For watching and for your comment!
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Excellent video, sorting through the same issues on my Astra. No power to the pump at ignition.
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Hope you get it sorted...
Thank you for watching and for your comment!
well done man .. good repair, always better when it isn't the ECU
Absolutely! 😓
Thank you for watching and for your comment!
I have the same problem. The same wire.. You have really help me with our video. Thank you.
That's great!
Thank you for watching and for your comment!
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Brilliant , love it when you see a good fix which could be very hard to find.
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Excellent drawing and the fix! Thank you!
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Thank you for watching and for your comment!
I did notice before you by passed the Main Relay you didn't have a tach signal but once you did you could see about 150rpm when cracking, but didn't initially start. Pain to find the main fault when you have to find 3 or 4 other ones first! Good video once again!
Very true...😊
Thank you for watching and for your comment!
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Very nice Luis, thanks for sharing ... btw ... long time ago you had said "i could do a checksum file repair video if my foĺlowers want", hehehe ... i was searching one and couldn't find any. Anyway, i know you are very busy person :) thanks for sharing, and wish you the best :)
Indeed very busy...
I do my best... but is never enough...😓
Thank you for watching and for your comment!
Lovely diagnostic process, keep up the good work and thanks for sharing 👍
No worries...
Thank you for watching and for your comment!
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Had the exact same issue 4 weeks ago, cost £300+ to have it sorted by a specialist. One thing we also noticed was this fault also caused the brake lights to stay on when in ignition but turn off when we pressed the brakes
Never noticed nothing with the brake lights...
Thank you for watching and for your comment!
Hey Louie.
Your ingenuity is just insane 👍👍
You're the best 🙏
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Thanks!
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These Vauxhalls really are a mess under the bonnet. Lots of corrosion everywhere. Definitely cars toavoid. Well done in finding the fault. Excellent work.
Yes they are...
Thank you for watching and for your comment!
@WAYNE LOTT Just like "my Dad smoked for 200 years and was as fit as a fiddle". 1 case isn't typical of Vauxhalls, generally all crap.
@WAYNE LOTT VAG cars have vastly more systems and these can go wrong. Even GM couldn't live with Vauxhall and sold it all to PSA.
Brilliant job!! Enjoyed that very much 😁 The car doctor strikes again 😂👍
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Thanks!
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Another great fix, without requiring any parts👍
Thanks for sharing Bro👍
Stay Safe❤
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good job thanks for share
but there is something not make sense , you are bypassed all relay but car do not start
is it the ECU disabling its injectors when it not sensed the control wire of main relay not feeding ?
Or that, or that wire was feeding something else...🤷♂️
Thank you for watching and for your comment!
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Another fantastic video and fantastic job :) Hardest part of our job is to find a problem after someone was there before - I'm pretty sure, that wire wasn't fitted by factory but you've found it
Thanks!
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You are a school , aren't you , auto technical school ... and a good teacher
I am just a guy playing with some stuff...
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Thank you for watching and for your comment!
Hello, where did you get your wiring schematics from, i have a 2004 1.8lt Holden astra h with no spark and the fuel pump is not turning on with the key
For that year, you can get them on TIS2000
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Hi mate, do you have a link to download the TIS2000 schematics, i can't find them
@jeffchapman1817
No... I don't...
I've got it ages ago... but I am sure it is still out there somewhere...
Just dig a bit deeper...😉
Another very good upload L!
Thank you!
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Nice job Leo, but why the car didn't start when you bypass the main relay and start only after fixing the control wire of the same relay I don't get it?
I can only guess that that wire was feeding more than just the relay...
Thank you for watching and for your comment plus, the wires touching... they might were causing other issues...
Thank you for watching and for your comment!
Mate you are a genius great diagnostics engineer Keep safe 👍👍👍
Thanks!
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Nice repair video
Thanks!
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Learning alot already, I think my 3 months old baby likes your video alot. She keeps giggling when ever we are watching your videos.
Quick question how did you get your logo on the scanner? Would like to have mine too?
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I have a video on that...
Just search my channel...
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Thank you for this video.
what are the names of the tools you used for bypass main relay? and which pins do you choose when you need to do a bypass (are they pins 30 and 87?)
Yes... 30 and 87...
Thank you for watching!
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Thanks alot, this video has been very helpful
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How much would that have cost? or can I ask.
Another great video Luis can I be a pain and ask where you get your wiring diagrams. Cheers 🍻
Multiple places...
One of them is HGS...
Thank you for watching and for your comment!
Excellent diagnostic skills!!!!!!!!!!!!!!
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Thanks!
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Very nice way of fault finding always u r great
Your follower from Sudan
Thanks!
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U rock man.
Pls make some video on VAG module replace with Component Protection decoding using Autel.
Thanks!
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That spindly wire you found external to the loom was much thinner than the manufacturer’s original. Someone fitted that bodge wire to overcome a previous fault, to overcome a poor connection or failure of the original wire. The bodge wire then failed itself ! bringing back the original fault......
Possibly...
Thank you for watching and for your comment!
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That was better than an episode of Columbo 👌🏼 😋 mystery solved 👍🏼
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Got same issue with our 1.6 vauxhall. Finding someone to do this work is not easy..
Where abouts are you based?
I've got a 2009 Astra 1.8 doing exactly the same as this - plus 3 months ago the radiator fan stopped working (it comes on for 5 seconds, then stops and the spanner light comes up on the dash).
Local garage has been trying to replace the ecu but having trouble programming replacements.
My car now won't start - I've temporarily fixed it by bridging power to fuse 15 - and it starts, but I'd love you to look at it.
I am not sure what all that means without checking diagrams and familiarise myself with the system.... but if bridging that fuse allows the car to start, understand where the power to that fuse comes from...
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Amazing diagnostic and explanation thanks bro 🙌🏿👏🏿
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Thanks!
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Good video. Nice to be able to follow your methods.
Thanks!
For watching and for your comment!
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So in 24:20 you said, that the 1 cable wasnt connected? And what you did exactly on 24:28?
Got it connected...☺️
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Ok now I understand that. But from where you know that 49 or 62 are connected to this relay. I got near same problem, but for me the 49 work but the 62 dont work. And if i take ignition without try to start the engine, all brakelights are lighting. Still searching my problem😅
@@LMAutoRepairs got it fixed! Exactly same problem on my car. Thanks
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Good job sir! Where Can i find your solder wireless wich you have
It is a gas powered one...
I bought it online years ago...
I guess places like ebay or amazon will have them...
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Great systematic testing..I like your technique of testing..would you know by chance if the starter circuit is combined with this circuit?.. I cannot find any reliable info that I can test in full confidence..Many thanks
Hi
Are we talking about the exact same car?
Thank you, for watching and for your comment!
thank you for the vid ..... what tools u used to clean battery ?
That external wire seems to be solid conductor prone to fracture and break again, its not a stranded wire, seems like someone took a telephone line wire to bypass the original faulty wire.
Hi my neighbour has a vauxhall zafira 2014 with the same problem, just can't seem to find any one to fix her car, can u help?
Great video, I have a similar problem to this, but my astra 1.9 3dr starts with easy start.... Just wondering do you do private work? Thanks
Did you every fix this mate I have the same issueb
Well diagnosed. A pro for sure.
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Thanks!
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nice find , corsa's has same problem strange random wire running on outside of wiring loom corrodes away
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Brilliant work that was well done. think saved lot lot money there.
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Thanks!
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Hello. I have identical errors. Car doesn't start. Nad You a damaged ECU harness cable???
Excellent work I have a problem with a astra h 1.6 turbo but I carnt find a schematic drawing for the loom and ecu. Where do you get yours from thanks
HGS...
But google will help you finding other sources...😉
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Excellent video! Keep them coming 👍🏼
Thanks!
Sorry to bother you. But is there any chance you can fix my fuel pump relay low voltage problem on my Astra mk4 it's been three years and no mechanic I take it to can fix it. Cheers.
Excellent troubleshooting skills!. Regarding that corroded pins, is it possible to replace them individually ?
Cumprimentos de Portugal :)
Yes it is possible to replace them individually...
But you need some dedicated tools to push the pin out...
Thank you for watching!
Obrigado!
Any dears of these codes from spinner light mean 140514-140562-140509 did brake hold down plus accelerate to the floor ECN ??
Finally you had a easy one.
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Hiya thanks for your video but my car Vauxhall Corsa 3 doors and 1L if you gone for motorway and after come back to home Take the engine off after them he doesn’t start again so the engine he doesn’t come on so can you answer me please if you can
Scan the car to start with...
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Hi m8 I just came across ur video on UA-cam I have a similar problem with my vauxhall astra 1.8 the car was driving and then it just shut down and would not start I've had the key reprogram and not can you help
Hi
Have you had the car scanned, live data checked etc?
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Doing these kind of videos are so nice :)) Love your content
Hope you're right...🤪
Thank you for watching and for your comment!
@@LMAutoRepairs Can I ask a question? You look like a guy good guy. I have an Opel Astra F, from 1996. I keep it in good condition, and I heard noise from the clutch, and transmission. I went to a mechanic, to change the clutch set, and probably the whole transmission, cause its cheaper that way for me. After the oil change and the transmission swap, I have low oil pressure, it lights up, and I can even hear sometimes the engine is dry.
Wtf? Is this just a coincidence, that the oil pump just went out right after the fix, or did they fuck up something?
Before that, engine was perfect.
Sry for long post.
@@attilakolumban7186
Difficult to say... it could be just a coincidence, but happening right after that work done...🤔
Just visual inspect the engine bay, etc... check the oil level if you haven't yet...
Brilliant work - love it!
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Thanks!
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Hi @Lmautorepairs
Wondering if you can possibly help in guiding me with your knowledge.
I have a 2009 Astra H 1.8 petrol which has a cold starting issue. It struggles to start and will cut off first few goes but once it starts and warms up the starting issue goes away untill the next cold start. Also smells of petrol and mpg is very very bad. Exhaust lets out excess amount of fluids/steam? No fault codes, has had new plugs and new coil pack. Evap is doing what it needs to. On live data short fuel trim is between -9 to +5 and also showing as running lean.
Any help will be greatly appreciated!
Hi
If is running lean check for air leaks... or blocked injectors... but if you say is running on once warmed, I would be more inclined for an air leak somewhere...
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@@LMAutoRepairs thank you very much for taking the time to reply and for your guidance. I will write back once I’ve had a look.
@@LMAutoRepairs I’m wondering if you are local to me and if so are able to have to look into it for me obviously if you have the time. I’m in London. Sorry I’m not sure where to private message you from.
Thank you!
Hi
I am quite far from London, but I do this as a part-time anyway... sorry if I can't help this time...
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I have this code on a Vivaro but the van starts and runs ok. If I delete the code, it comes back on a restart. Have you any ideas on this please
Good repair, thank you
Thanks!
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@@LMAutoRepairs Please sir, can I have your phone number?
Wish I'd had you sort my Astra H out last year ....
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That was a nice one.
Thanks!
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Wouldnt it have been faster to check the main relay control wire by putting test light to power and removing relay and checking at control wire pin to see if computer lights test light proving that it is controlling relay rather than unplug computer and finding wire with continuity check?
There is sometimes different ways of doing things... I guess either way is ok...
Thank you for watching!
Im having such a weird issue with my 2007 astra 1.6 sxi.
It cranks but wont start 1st try , 2nd try it fires right up.
I had code for camshat sensor so i replaced it and it was great for about a week then started doing it again.
So i swapped out the NEW top camshaft senor with my old 1 and once again , it started 1st time everytime for about a week and then went back to cranking but no start on 1st turn of the key.
It is obvioulsy intermittent but changing out the top camshaft sensor seems to fix it for week or so ????
Im stumped lol....
Have you scanned the car?
Do you have a scope?
That would be the best way to approach that...
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@@LMAutoRepairs
Was scanned and only code was for camshaft senor . I dont have a scope but my mechanic should so will start there next 👍👍
Cheers from Mexico. I have a No Crank case with an Astra H 2007. When I open the ignition switch I hear the fuel pump working. The starter motor is good and there is continuity between the relay and the starter. I followed your diagnosis porcedure to check continuity between the main relay and ECU, and it has continuity. Do you have any idea?
Do you have any codes on the ecu?
Thank you for watching!
@@LMAutoRepairs Hi my friend. I finally managed to get my Opcom Scanner working. When I try to read Engine fault codes I get comunication error with ECU. But if I read code for ECU and CIM module especifically, I get the following:
## ECU
P0115 - Engine Coolant Temperature Signal Range/Performance
(71) - Present
P0460 - Fuel Level Sensor Circuit Range/Performance
(71) - Present
P0500 - Wheel Speed Sensor Circuit Range/Performance
(71) - Present
P0654 - Engine Speed Signal Range/Performance
(71) - Present
P0705 - Automatic Transmission Gear Signal Range/Performance
(71) - Not present
P0550 - Mileage Circuit Range/Performance
(71) - Present
### CIM module
B2961 - Switch Position Ignition Key Circuit Malfunction
(08) - Not present
U2105 - CAN-Bus No Communication with ECM (Engine Control Module)
(00) - Present
U2106 - CAN-Bus No Communication with TCM (Transmission Control Module)
(00) - Not present
U2111 - CAN-Bus No Communication with EPS (Electrical Power Steering)
(00) - Not present
U2120 - CAN-Bus No Communication with AHL (Headlamp Levelling Device)
(00) - Present
Any ideas will be appreciated. Thanks!
Excellent video.
Thanks!
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Hi. same problem on astra 2008 not starting but engine turning over, also the rear brake lights are always on when ignition is on. I;ve not yet checked the wiring but does it sound like the same problem? Was the broken wire broken within the loom or the multi pin connector?
Hi
You must have skipped parts of the video, I showed exactly where the issue was in this case...
Does not mean your issue it is the same...
Go through the appropriated checks, etc...
Thank you for watching!
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@@LMAutoRepairs Many thanks for the quick response. I've checked for the same broken wire problem and there is no loose wire in the multipin connector housing or any sign of soldering on to a wire. Shame as I was pinning hopes on that easy fix you had discovered.
Have you scanned the car and looked at live data?
That might be helpful...
thanks, I need help Z17DTH unstart engine i can hear tank pump voice
Excuse me, sorry for the late follow, but what is it you sprayed on the battery terminals before and after connection.
Similar to this...
rover.ebay.com/rover/1/710-53481-19255-0/1?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fitm%2FCarlube-Battery-Terminal-Protector-400ml-Maintenance-Sprays%2F333506694761%3Fepid%3D15036770141%26hash%3Ditem4da68c4e69%3Ag%3A41gAAOSwKKBePLWZ&campid=5338344466&toolid=20008
Thank you for watching!
Very clever, nice work.
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Thanks!
Hi bud .wondering . We got a vectra c 55 face lift . Changed the inlet to a referb . With new flaps . Done smoke test nothing . Bit in limp mode got a p0105 . We changed map . The map egr throttle body we not getting a 5 v reading of the map . Bank 1 is giving a plus temp but bank 2 we got -40 we don't know we to go it was ok before the inlet changed to a blank . So we changed to a reference. . We got no wiring diagram . But got a feed to ecu .all cables to ecu been tested got a buzz . Snap on can't find it . We you vox com . .I'm disabled . And the truth is . I haven't got trust in it to go out . . I can try to get my sone to make a video using video com . If you can help id be most grateful . . We not sure why its gone it was OK for 11 miles I reverst and . It went into limp . Its lean fan on but connect it to temp and fan gone off . Can you help . I'm not sure were bank 2 is . .or looks OK on dpf under manifold . I can't find the other sensor . Sorry its a 150 but 1.9dth . Were can we send you the information . I live up in North Wales . I'm desperate 3 years iv been trying . Can you help begging . Thank you .
Hi my Vauxhall’s Astra 2011 mk6 one morning it starts next morning it won’t start any suggestions?
Scan the car, and go from there...
Thank you for watching!
someone has steel balls to put a battery on the seat, sorry for my expression :-)
Was there car... 🤷♂️
But yes, I agree...
Thank you for watching and for your comment!
battery on the seat is old school, baby
Hi, I have 2009 Astra h z18xer it has code p0685.
Crank but no start and cant hear the fuel pump prime when turning ignition on.
I think I have same problem, are you mobile mechanic? Thanks
Hi
No, I am not a mechanic...
Start by checking the basics... fuses, relays etc...
Thank you for watching!
Where can I get a wiring diagram for 2004 , 1.6 benzine !? Thanks
this is excellent thanks
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What setting do you have your multi meter on
Continuity/ohms reading...
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Great work 👍
Thanks!
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I'm getting po460 and 550 with /71 on end won't start saying fuel empty too tried everything now going to start checking all wires. Anyone had the same codes ?
Good job mate👏
Thanks!
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It looks like you have a choice, no fuel or no battery :)
And many times both...🤣🤣🤣
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Wish i lived near you still have my imobiliser problem on my doblo.
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Nice diag good video keep it up
Thanks!
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Nice job! What is the tool at 3:23 called and what's it for?
Is a cleaning toll... found it on eBay...
Thank you for watching and for your comment!
My 2009 diesel 1.7, was going to 4000 rpm when pressing the brake, wont start, was trying to start when driving and smoke from the start engine
Main ecu fail
Hi guys. I know this is an old thread but still trying my luck for a response. I had my starter motor serviced on my 06 Astra H cdti. But when I install it back on the car it starts winding before I turn the car to start (key on On motor is kicking in) wondering what could be the cause.
Either a faulty alternator, or you have connected it wrong...
What was the issue before, for you to have it serviced?
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@@LMAutoRepairs The issue was the brushes, had them replaced. Starter seems to work just fine when I bench test it. Dont think it's the alternator because that was not a problem before. Could be a bad connection like you suggested. Or could it be the starter relay?
Could be a sticking relay... unplug it at see what happens...
Do you know what the problem is, I have an Astra H 1.6 16v XEP twinport, it reports a cylinder misfire error when the weather is cold, the bomb and spark plugs have been replaced but the problem still exists?
Injectors perhaps?
Have you checked compression?
Thank you for watching!
@@LMAutoRepairsI didn't check the compression, but I doubt the valves are wrong, because weird detonations are heard on the exhaust!
Very good job!
Thank you!
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