TM  10-3930-669-20 CONTINUITY TEST (1) Set multimeter select switch to OHMS. (2) Check    continuity    between    relay    R7, terminal 85 and a known good ground. (a)   If there is no continuity, replace relay R7 ground wire (see schematic Appendix F). (b)   If there is continuity, relay R7 ground wire is OK. 2-353