Disconnect the negative (-) battery terminal.
Remove the passenger compartment relay box.
There should be continuity between the No.9 in the I/P-K and No.15 in the I/P-A terminals when power and ground are connected to the No.16 in the I/P-D and No.13 I/P-B terminals in the passenger compartment relay box.
There should be no continuity between the No.9 in the I/P-K and No.15 in the I/P-A terminals when power is disconnected.