TM 10-3930-669-20 2.  ENGINE CRANKS BUT WILL NOT RUN (CONT). KNOWN INFO TEST OPTIONS Engine cranks. Glow plug indicator operates. Fuse 2 OK. Wire 6 OK. Fuel shutoff solenoid OK. Glow plugs OK. Throttle adjustment correct. Fuel OK. Fuel injector(s) OK. Wire 34 OK. Relay R4 ground wire OK. Voltage test. STE/ICE-R #89. POSSIBLE PROBLEMS REASON FOR QUESTION Wire 7 faulty. Wire 9A faulty. Relay R4 faulty. If 22 to 24 vdc are not present. wire 7 is faulty. KNOWN INFO TEST OPTIONS Engine cranks. Glow plug indicator operates. Fuse 2 OK. Wire 6 OK. Fuel shutoff solenoid OK. Glow plugs OK. Throttle adjustment correct. Fuel OK. Fuel injector(s) OK. Wire 34 OK. Relay R4 ground wire OK. Wire 7 OK. Continuity test. STEAICE-R #91. POSSIBLE PROBLEMS REASON FOR QUESTION Wire 9A faulty. Relay R4 faulty. If continuity is not present, wire 6 is faulty.  If wire 6 is OK, relay R4 Is faulty. ¬ ¬ 2-54