What are the symptoms?
Not cranking could be the GP/starter relay fusible link, the starter solenoid signal wire connection, the starter relay, or wiring.
Support image for stages B3, B5, (fusible links/connections) *note: OEM links in link box are red/green Support image for stages A2, A5, B1 (relays/GP bypass) *note: this is the 6v quick glow system; if you have the 12v system there will only be a single GP relay and the starter relay here...