Look real close at the board female terminals where the relays plug in. Have all relays out, compare each set of female terminals to the others. One set even slightly spread apart, will cause you all kinds of headaches
8L with 4C is always caused by burned relay terminals. Adding just a new relay helps for a bit, then, it fails again
8L by itself is broken wire at brake #1 cause, then relay bad, or pin at VM is burned. You can save the VM by simply jumping the connection from the harness into the VM...Save a lot of mula!
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