Subaru Workshop Service and Repair Manuals

ECU Power Supply Check

With ignition switch "ON," voltage between these ECU connector terminals and ground should be a minimum of 10V:

Connector:

Terminal:

B58

12

B48

15

B48

2

B48

13

ECU GROUND CIRCUIT CHECK

With ignition switch "OFF," disconnect ECU connector.  There should be continuity between these ECU connector terminals and ground:

Connector:

Terminal:

F47

24

F47

25

F47

14

F47

15

B48

11

B48

22