Customer Vauxhall Astra J Towed from London AA said very likely an ECU Fault !!!

My customer had his Vauxhall astra j towed from London because of a coolant temperature sensor fault , as you all probably know by now the decade box was in action straight away and we found the issue .
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[@alihersi3259]

The sensor is located next to the oil filter. Thank you very much. This helped me immensely

[@CANDiagnostic]

Spot on diagnosis as always

[@CarsExposed]

Thanks bro 😋

[@OneAuto]

Well done mate. A perfectly executed diag and repair 👍

[@CarsExposed]

Thanks mate 👍

[@iankelly2110]

Proper diag Igor well done and all the best with the garage.

[@CarsExposed]

Thanks mate I really appreciate it 👍🍻

[@diacstefan5260]

Nice work. I have an issue with the fan running immediately when i turn the key, so the temperature sensor is the cause.

[@chasaston8254]

Wish I could find a trustworthy mechanic like you. I had this problem just over a year ago on my Astra, the problem then went away and just recently came back, with fan running all the time, I was told the ECU module needs to be fixed (over £200)... as it needs to be sent away. My engine error code was also P0115 coolant temperature sensor circuit 1 I believe the obd 2 stated. Car also seems to be running good apart from fan constantly running.

[@Rocky313Pal]

Same issue here! What did you do to fix?

[@chasaston8254]

@@Rocky313Pal It turned out to be the thermostat, which fixed the problem

[@Rocky313Pal]

@@chasaston8254 Thanks alot!

[@GrampiesWorkshop]

How's she goin'? This was an interesting diagnoses. Good for you to zero in on it pretty well right off the giddy up go!!! Thanks for sharing and take care!!!

[@CarsExposed]

Easy one 😊 Thanks bud 👍

[@gcmarcal]

Canal esta crescendo! Parabens!

[@CarsExposed]

Valeu obrigado 👍

[@Automotive_Solutions]

Nice work 👍. Battery maintainer, add it to the never ending list of tools 😜

[@CarsExposed]

Oh man tell me about today was one those days more tools 😉💵💵

[@train4905]

A superb job sir.well done.

[@Kalls_Leigh]

I have the same issue on my 2013 astra. I have so far changed coolant level sensor & the coolant temp sensor but still have same issue. Could this be the thermostat causing it?

[@williamwatterson-dj2qd]

I’ve just had the same problem yesterday and have put a sensor on it and still says the same what do you think it could be if it’s still on the dash thanks

[@nknpunnukhel8506]

I had the same problem when i changed the coolant bottle, it turned out to be the plug wiring that was corroded and i just replaced the plug that goes into the sensor, all sorted

[@normanstephens5391]

Another Successful Diagnosis & Repair. Well done again. Pity you live so far away from me should I need your Expertise. 👍👍

[@CarsExposed]

Cheers mate 😊… where abouts are you ?

[@KrisFireX]

Where's the other sensor located?

[@pp-jh4ig]

thanks helped a lot, unfortunately my issue is intermittent so hard to figure out what's the issue, but at least I know the numbers now

[@deepikaapraveen]

I had the same - I left it , but now car stopped completely - they say BCM is gone , it was getting water from heat matrix , now sent my bcm for cloning and they couldn’t retrieve all data from it :(

[@JohnnysSpeedShop]

So much trouble from a sensor and battery drain... :) Hope you guys are well mate...

[@CarsExposed]

Absolutely mate 5min jobie, doing ok bud how’s everything ?

[@shegzog8974]

Hiya, the sensor next to the radiator, does that affect the fan in anyway? Can the sensor be faulty and the fan still spinning ?

[@briankotze57]

Great show

[@CarsExposed]

Cheers pal

[@barneykennett9282]

Nice...👍.

[@CarsExposed]

Cheers bud 👍

[@kevinpalmer7452]

Great video you could of left it at disconnecting the sensor but good to see you doing the other testing 👍

[@CarsExposed]

Cheers mate yeah pretty much could I left it there , always a pleasure 👍

[@Callummellers]

Would it not be dangerous to leave it disconnected? I ask because mine has failed for the 2nd time now 😑

[@WendyWindows]

Is this the same sensor for a Mk6 2012, as i can't find one to order on line.

[@hiramiah7967]

I have the similar problem, changed thermometer A/C Singh deciphered, ac working, but fan continuously running, changed all censor, I have took the car to Vauxhall dealer to fix, but they're not sure which parts to change. Coolant water not circulating, radiator changed. Any help please

[@flaviusmanu8439]

Hi, I have the same problem and mine is because of a faulty coolant temperature sensor. Sometimes, while driving, the temperature goes from 90c up to 130c or down to 50c and that gives me an ECU error and AC can't be used because the engine is overheated, when in reality it isn't, it's just an incorrect reading. In my case, I just stop, restart the engine and then everything is well. Happens once every 50 to 60 miles I would say.

[@sara78130]

Common fault this car coolant sensor or thromstart

[@jasbirkalsi2882]

Can a noid light be used to check the wiring .

[@CarsExposed]

Definitely but depending on the circuit I like to use a H7 bulb 👍

[@normanstephens5391]

Sorry for the delay in reply. 10 Miles outside of Liverpool 😉.

[@CarsExposed]

Oh man yeah that’s a bit far

[@LMAutoRepairs]

👍👍👍 Nice and easy...

[@CarsExposed]

Indeed customer was well happy 😊👍🍻 cheers Luis

[@LMAutoRepairs]

@@CarsExposed I am sure he was! There is a bit of a difference in costs... between a sensor and ECU...lol

[@CarsExposed]

@@LMAutoRepairs 🤣👍

[@warriorsoflord58]

Brazilian hein? The accent is there

[@colinboyd4371]

Gift.

[@CarsExposed]

Indeed 😊👍

[@wayne1243]

Top job 👊👊

[@CarsExposed]

Cheers pal 👍

[@mohammedmsam2009]

Is code 4 in Astra sign of temp sensor needs change

[@haseebhussain3327]

Think it means AC cant be used due to high engine temp, most likely is sensor but could be sensor is fine and ur engine is actually overheating so get it checked depends on your symptoms

[@mohammedmsam2009]

@@haseebhussain3327 thank you for replying back. Changed the thermostat and temperature sensor, works fine now

[@haseebhussain3327]

@@mohammedmsam2009 did yours struggle to start when cold and dud it read high temperature and idle high?

[@ahmedhussein6165]

@@mohammedmsam2009 hi did yours engine temperature go high?

[@ahmedhussein6165]

@@haseebhussain3327 that is the problem I have temperature is high and error 4