2014 CHEVROLET SONIC MILEAGE SHOWS ------

**dd1** · 26th October, 2020, 11:20 PM

Hello everyone on DK, i have a chevy sonic with a cluster mileage issue. when I open the ignition switch, it shows the mileage and changes back to ------- dashes. the previous shop had replaced the cluster and used BCM. that had not worked for them, so they put everything back, original. So, we ordered the new BCM and reprogrammed and reconfigured it. again, the same. the bcm has the correct mileage, but the cluster shows 0km. when it came in, it was showing both places the correct mileage. but would switch it back to the dashes right away. i reprogrammed the instrument cluster. nothing has changed. the car has the original cluster and a new bcm. when it came in, the bcm and the instrument cluster had the same mileage. when i hade programmed the new bcm, now the bcm has the correct mileage and the cluster has 0km in the ECU identification section. now, when i open the ignition switch, it is showing dashes all the time. i even tried to reprogram the ecm, but shows it has the latest calibrations so no need to reprogram it. the other shop had tried to swap the cluster and the ecm and no luck. so, everything on this car is the original. can anyone help me to figure out this issue????? the problem has started from swapping the ecm, some sort of no start diagnosis, which was wrong diagnosis by the other shop, and everything went crazy from there.

**clusters** · 26th October, 2020, 11:35 PM

Global A structure, swapping in a used module can brick any number of other modules.

Read this

**dd1** · 27th October, 2020, 12:15 AM

thank you for that, how can i get this issue resolved?

**clusters** · 27th October, 2020, 12:33 AM

NEW modules, not used ones, new from the dealer and SPS programming. No idea which ones will be needed.

If it was me, I would walk away from it and let the dealer handle it.

**dd1** · 27th October, 2020, 01:57 AM

the bcm was from the dealer, and SPS programming, up to date. i really would like to get this repaired. appreciate the help.

**clusters** · 27th October, 2020, 02:03 AM

You may need a new dash and programming.

Once a module is damaged by swapping modules, it is bricked and needs replacing. Very few people in the world have the capability to virgin the Global A dashes, and they will not share any info, nor do it by dump.

Would be nice to know how this all started.

**jomberykaso** · 27th October, 2020, 02:04 AM

Originally Posted by clusters

You may need a new dash and programming.

Once a module is damaged by swapping modules, it is bricked and needs replacing. Very few people in the world have the capability to virgin the Global A dashes, and they will not share any info, nor do it by dump.

Would be nice to know how this all started.

You forgot to mention that solution will not be free...

**clusters** · 27th October, 2020, 03:10 AM

Interesting, the Sonic 93c86 dash files that I found bear a lot of resemblance to the Insignia. After a little web surfing, both vehicles have a history of displaying dashes after a low or dead battery.

Read the dash 93c86, save it, then apply the Insignia fix and see if that helps.

**rtbdiagnostic** · 27th October, 2020, 07:16 AM

Upload the dash file only and the full VIN number ....

**dd1** · 27th October, 2020, 03:26 PM

Originally Posted by rtbdiagnostic

Upload the dash file only and the full VIN number ....

ok, i will read and post the eep and the vin here. merci

**dd1** · 27th October, 2020, 03:27 PM

Originally Posted by clusters

Interesting, the Sonic 93c86 dash files that I found bear a lot of resemblance to the Insignia. After a little web surfing, both vehicles have a history of displaying dashes after a low or dead battery.

Read the dash 93c86, save it, then apply the Insignia fix and see if that helps.

merci, i will give it a try and keep you guys posted here. this is my 1st time dealing with the cluster. and the eep reading is 16bit reading?