<![CDATA[Checksum error - EGR delete]]>Good morning,

Around 14 months ago, we had the EGR deleted on the V60 , D4 2015 model. P3. Everything has been great until the car had to go into Volvo for a steering rack replacement. Since, we have an ECU checksum error. I suspect the ecus are speaking and identifying that an ecu modification has been made. Is this something that can be rectified in VDASH? I am happy to invest in a subscription for the vehicle but want to be sure this can be rectified before doing so. Any advice would be much appreciated. Many thanks, B

]]>https://forum.d5t5.com/topic/405/checksum-error-egr-deleteRSS for NodeFri, 14 Aug 2026 17:42:02 GMTFri, 14 Aug 2026 05:57:57 GMT60<![CDATA[Reply to Checksum error - EGR delete on Fri, 14 Aug 2026 10:08:35 GMT]]>@Bigv Do you have a check engine light now? This would mean there is another problem with your engine. Checksum errors don't trigger the CEL and can be ignored as long as the engine starts and runs without problems.
I can't help you with VIDA. Subscriptions for legit VIDA are only available for private users in the US, while I live in germany. Cracked offline versions like VIDA2014D are not able to do software reloads. Your tuner should have made a backup of your original software and should be able to restore it.
Reverting to stock software would also require to remove the blanking plate as the EGR would be reactivated.

]]>https://forum.d5t5.com/post/1512https://forum.d5t5.com/post/1512Fri, 14 Aug 2026 10:08:35 GMT<![CDATA[Reply to Checksum error - EGR delete on Fri, 14 Aug 2026 06:26:01 GMT]]>Hey, thanks for the reply. The EGR was blanked and then the ECU remapped by a car tuning company. The ECU light remained off for about 14 months until Volvo replaced a steering rack. Can you explain the software reload in VIDA?

]]>https://forum.d5t5.com/post/1510https://forum.d5t5.com/post/1510Fri, 14 Aug 2026 06:26:01 GMT<![CDATA[Reply to Checksum error - EGR delete on Fri, 14 Aug 2026 06:15:00 GMT]]>@Bigv Did you just blank the EGR, or did you install a remap/tune with EGR off? Remaps/tunes will always trigger checksum DTCs in the CEM and ECM, which you can only get rid off by reverting back to the original, untampered Volvo Software of the ECM. Or by performing a software reload for the ECM with VIDA. There is no other way to fix this.

]]>https://forum.d5t5.com/post/1509https://forum.d5t5.com/post/1509Fri, 14 Aug 2026 06:15:00 GMT