TM  10-3930-638-24&P 3-10.   STARTER   AND   SOLENOID   TROUBLESHOOTING   (cont) MALFUNCTION TEST  OR  INSPECTION CORRECTIVE ACTION 2.  STARTER  FAILS  TO  CRANK  (cont) Step 2. (cont) a. b. c. If ammeter indicates 6.5 to 7.0 amperes, remove solenoid (para 3-13) and check for binding plunger or  defective  spring. If  ammeter  indicates  more  than  7.0  amperes,  winding is shorted or grounded. Replace solenoid (para 3-13). If ammeter indicates less than 6.5 amperes, winding has  excessive  resistance.  Clean  solenoid  terminals and repeat pull-in winding test. If ammeter still indicates less than 6.5 amperes, replace solenoid (para 3-13). 3-11.   WIRING   HARNESS   TROUBLESHOOTING NOTE Refer to electrical system wiring schematic (appendix F), front wiring harness illustration (para 3-15a), and rear wiring harness illustration  (para  3-15b). MALFUNCTION TEST  OR  INSPECTION CORRECTIVE ACTION 1.  MAJOR  PORTION  OF  ELECTRICAL  SYSTEM  INOPERATIVE Check for improper connection or defective connectors between front and rear wiring harnesses, IGNITION switch and connector, and VEHICLE LIGHTS switch and connector. If connections are correct, replace front wiring harness (para 3-15a) or rear wiring harness (para 3-15b). 2.  ONE  ELECTRICAL  CIRCUIT  INOPERATIVE Step 1. Disconnect harness lead(s) from affected component, and use an ohmmeter to check for open circuit caused by breaks in wiring or faulty connectors. a. If harness wire is broken, and wire is not accessible, replace wiring harness (para 3-15). b. If harness wire is not broken, proceed to step 2. 3-92