Subaru 2009 IMPREZA Service Manual page 162

2) Connect terminal No. 3 to battery positive termi-
nal and terminal No. 4 to the battery ground termi-
nal, and measure the resistance between the
electronic throttle control relay terminals.
(1)
(2)
(2)
(3)
(3)
(4)
Terminal No.
1 and 2
Electronic Throttle Control Relay
(1)
(4)
1
2
3 4
FU-04077
Standard
Less than 1
FU(H4SO)-51
FUEL INJECTION (FUEL SYSTEMS)