According to K Test, the RCM tested bad, am in the process of replacing that. However there is another unit adjacant to this (simular in size to the ECM ) to the right of the Ecm, with two terminal wires going to it. All this is under a large cover in the floor infront/under the fromt passenger seat, cover bolded down with four bolts to studs anchored in the floor. I have The Honda service manual and owners manual and neither shows two units in this compartment. What is this second unit? Has the number 28100-PXO-823-3LX M1
Thanks