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+--- Thread: DTC038096 Preheating unit diagnostic connection (/showthread.php?tid=77483)
DTC038096 Preheating unit diagnostic connection - massilos - 09-04-2023
Hello every one .After changing the full kit ECU the vehicle Renault trafic III 2015 is cranking and it starts for a 3 second, and it goes off immediately. Try again, and the engine cranking it start for two three seconds then goes off again the same thing over and over and over I find one of the glows plug were the resistance was too high I replacing also i had one Preheating relay used unit i replaced but still the same it start for 3 seconds then goes down
DTC038096 Preheating unit diagnostic connection
![[Image: 01.png]](https://fullbox.uk/DTC/01.png)
![[Image: 02.png]](https://fullbox.uk/DTC/02.png)
![[Image: 03.png]](https://fullbox.uk/DTC/03.png)
RE: DTC038096 Preheating unit diagnostic connection - al70 - 09-04-2023
Check for a broken/bent pin on the ECU
RE: DTC038096 Preheating unit diagnostic connection - massilos - 09-04-2023
Hi Mate .thanks for the replay. i did had look in the ecu connector all are ok . but i am suspecting .preheating controler as they is tow one is preheating controler relay and the second one is glow plug preaheating .
![[Image: s-l500.jpg]](https://i.ebayimg.com/images/g/MQEAAOSwyk5jzPp2/s-l500.jpg)
![[Image: s-l500.jpg]](https://i.ebayimg.com/images/g/vbgAAOSwRLhjzPoa/s-l500.jpg)
![[Image: 04.png]](https://fullbox.uk/DTC/04.png)
RE: DTC038096 Preheating unit diagnostic connection - al70 - 09-04-2023
You've checked the relay ?
RE: DTC038096 Preheating unit diagnostic connection - massilos - 09-04-2023
(09-04-2023, 21:17 PM)al70 Wrote: You've checked the relay ?
No i didn't but there is scrap yard 10 minute drive from my home i will find one i swapped i will let you know .Cheers
RE: DTC038096 Preheating unit diagnostic connection - flavio69 - 10-04-2023
I suspect a broken cable. there have been other cases
command in injection unit/actuators/force glowplug heating,and check for wires in connectors,continuity,+dc,etc,etc
ET160 preheating inactive is normal....if you stayed a few minutes with +dc on diag...inj.unit cut off current on glowplugs
RE: DTC038096 Preheating unit diagnostic connection - flavio69 - 10-04-2023
Now I read more carefully.. you say that it still starts ok, and runs for 3 seconds.if you replaced the computer collection... you should find in the injection ecu, learning procedures for the high pressure pump, injector codes, etc
I had cars with this code, and it still worked well (DTC038096) if the rest was ok.if the outside temperature is over 10-12 degrees and everything is ok, compression, injection pressure, it doesn't even need glowplugs
RE: DTC038096 Preheating unit diagnostic connection - massilos - 10-04-2023
Hi Mate thank you for the input,i didnt get change to change the reley modul as i was busy at work i will try to get for tommorow.
yes the van start 2 or the 3 second max then gos off right away,yes i used the can clip change the injector codes and learned all the moduls injecter all the sonsors the diesel pump exetera.
it is possible is broken wire .i will replace the relya modeul the i will find out.
Cheers
RE: DTC038096 Preheating unit diagnostic connection - massilos - 11-04-2023
hi flavio69 you right ,i replaced the preheating controler relay .but this did not help the same think the van crunk start then go off right away.
i get two message comming up in the dashboard
1) check hill start assistance
2) press clutch + start
RE: DTC038096 Preheating unit diagnostic connection - massilos - 12-04-2023
1) check hill start assistance this come from the abs pump i didnt replaced as yet as i only connected the abs modul to van leaving the old pump there i assume it should start