DTC U300E-13: Climate Control Unit Power Supply Circuit Open (IG1): Notes

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

System malfunction location	Climate control unit power supply circuit open (IG1)
Detection condition	Malfunction in wiring harness between climate control unit and IG1 relay
Fail-safe function	Not applicable
Possible cause	C/U IG1 15 A fuse malfunction IG1 relay malfunction Climate control unit connector malfunction Open circuit in wiring harness between battery positive terminal and climate control unit terminal Climate control unit malfunction