Send me a PM w/email and I will jpg the EA to you and then you will know by the connectors and wiring to the 2 units if this is in fact the same system.
This will also give you the inner modules circuits/electronics for testing each section w/ohm meter.

My PM is stricly for data copy , such as schematic transfers.
I am on 8 different Forums and have no time for Private Diagnostics, so please adhere to this.

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A Dalton