p0245 and no display on gauge

[thichmt]

hi richard. hoping you can help guide me in solving these issues. read manual, went through your search forum here as well.
installed wiring as per diagram. doing quick start and just “water level” comes on for a few seconds nothing else on gauge. also getting p0245 code (white wire tapped to ecu end, brown to other end). checked grounding wires. both red lines posie to brown/red wire. this is for 2017 wrx
mike