My 400e is misbehaving. It sat for a few years awaiting a new radiator and fan clutch. Those since have been installed, as was a new headliner and sunroof repaired.
But now, after she warms up, she stumbles and is bogged down.
runs great from the start until approx 60C is reached.
Upper harness replaced by PO.
Pulled codes from the push button LED diagnostic port and got code 17 - data exchange fault between individual control module

So I did some research and came across this Fault Code 17 (data exchange problem) & Dealer B.S.

So I disconnected the battery and pulled the module with the fuses to look for the TWO WIDE pins. Could find only one wide pin, so I reinserted the module and reconnected the battery.

The I pulled other codes from socket 4, 8, 17 all with 1 blink (which means OK) But socket 7 gave me 11 blinks - Fuel safety shut-off to LH-SFI control module - and socket 19 now didn't blink at all.

now I'm at a loss.

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Closing the store
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