i-ELOOP missing from fuel economy monitor + Forscan queries

[kputera]

Hi all,

I recently picked up a second-hand 2017 Mazda 6 2.5 Wagon (Malaysian-market model).

The car did come with a few issues post-purchase, most of which have now been resolved—mainly engine-related. However, one lingering area of concern has been the i-ELOOP system.

My mechanic and I noticed a classic symptom of a failing i-ELOOP capacitor: unstable system voltage. Interestingly, no i-ELOOP warning ever appeared on the cluster. The same applied to i-STOP—it never activated and no messages were displayed. This led me to suspect that the previous owner or dealer had coded both systems off.

We went ahead and replaced the i-ELOOP capacitor, which immediately resolved the voltage instability. After that, I checked the Fuel Economy Monitor and noticed that the i-ELOOP logo and charging animation were completely absent. As far as I can recall, they were never present when I first bought the car either. For reference, below highlighted in the blue square and the text saying i-eloop is what i am missing.

I then started digging into FORScan and confirmed that both i-STOP and i-ELOOP were disabled when compared against the factory As-Built data. I’ve since successfully re-enabled i-STOP, and it’s now functioning correctly. However, I’m still running into issues when trying to re-enable i-ELOOP, specifically within the IC module.

For address 720-04-25, the values currently in the car clearly indicate i-ELOOP is disabled. When I amend only that section (without touching anything else), FORScan throws a “configuration is not compatible” error and refuses to flash.

A few questions I’m hoping someone can help with:

• Should I be pulling the full As-Built data from Mazda’s website and reflashing all relevant modules, rather than editing individual values?
• Is the missing i-ELOOP animation in the Fuel Economy Monitor due to i-ELOOP being disabled at the IC level?
• Or is it possible the previous owner/dealer did something deeper—effectively “removing” i-ELOOP from the infotainment display?

Would really appreciate any insights or guidance from those more experienced with FORScan and Mazda’s i-ELOOP system.

Thanks in advance!

 

[MzdCX_5]

The missing animation is because I-Eloop is not enabled. When you modify anything in BLOCK 4 you need to also modify the Block checksum in line 720-04-01. Search for SergSlim Excel spreadsheet it will calculate the Instrument Cluster checksum for you.

Don't press Write All, Block 3 is read only and it will throw an error.

And finally If you suspect the previous owner change or "tweak" infotainment, upgrade it and it will wipe out any modification.

 

[kputera]

The missing animation is because I-Eloop is not enabled. When you modify anything in BLOCK 4 you need to also modify the Block checksum in line 720-04-01. Search for SergSlim Excel spreadsheet it will calculate the Instrument Cluster checksum for you.

Don't press Write All, Block 3 is read only and it will throw an error.

And finally If you suspect the previous owner change or "tweak" infotainment, upgrade it and it will wipe out any modification.

Thanks for the reply. Just realised about the block 4 checksum on 04-01. Completely missed that.

It’s been amended and now the animation is back as well.

Thanks!