Test A: Starter Solenoid Does Not Click

See WIRING DIAGRAMS  for schematic reference.

1. If diagnostic system check was not performed, go to ENGINE ELECTRICAL DIAGNOSTIC SYSTEM CHECK  . If diagnostic system check was performed, go to next step.
2. Turn ignition switch to START position. If engine cranks, problem is intermittent. See INTERMITTENT OR POOR CONNECTIONS  . If engine does not crank, go to next step.
3. Locate starter relay in underhood fuse block. Turn ignition switch to START position. If starter relay clicks, go to step  7 . If starter relay does not click, go to next step.
4. Turn ignition switch to LOCK position. Ensure transmission is in Park. Remove starter relay from underhood fuse block. Connect test light between ground and starter relay coil voltage supply circuit (Yellow wire) at starter relay socket in underhood fuse box. Turn ignition switch to START position. If test light illuminates, go to next step. If test light does not illuminate, leave test light connected and go to step  6 .
5. Connect a test light between starter relay coil voltage supply circuit (Yellow wire) and starter relay coil ground circuit (Black wire) at starter relay socket in underhood fuse box. Turn ignition switch to START position. If test light illuminates, go to step  13 . If test light does not illuminate, go to step  10 .
6. Turn ignition switch to LOCK position. Disconnect Park/Neutral Position (PNP) switch. Connect a 10-amp fused jumper wire between PNP supply voltage circuit (Purple wire) and starter relay coil supply voltage circuit (Yellow wire) at PNP switch harness connector. Turn ignition switch to START position. If test light illuminates, go to step  14 . If test light does not illuminate, go to step  11 .
7. Turn ignition switch to LOCK position. Remove starter relay from underhood fuse block. Connect a test light between ground and starter relay positive battery voltage circuit (Red wire) at starter relay socket in underhood fuse box. If test light illuminates, go to next step. If test light does not illuminate, go to step  17 .
8. Ensure transmission is in Park and parking brake is set. Connect a 30-amp fused jumper between starter relay positive battery voltage circuit (Red wire) and starter solenoid voltage supply circuit (Purple wire). If engine cranks, go to step  13 . If engine does not crank, go to next step.
9. If 30-amp fuse in jumper is blown, go to step  18 . If 30-amp fuse in jumper is not blown, go to step  12 .
10. Check for an open or high resistance in Black wire between starter relay and ground. If an open is found, repair as necessary and go to step  23 . If no open is found, go to step  19 .
11. Check for an open, high resistance or short to ground in Yellow wire between PNP switch and starter relay. Check for and open, high resistance or short to ground in Purple wire between PNP switch and ignition switch. If problem exists, repair circuit as necessary and go to step  23 . If problem does not exist, go to step  15 .
12. Check for and open or high resistance in Purple wire between starter relay and starter. If problem exists, repair as necessary and go to step  23 . If problem does not exist, go to step  16 .
13. Inspect starter relay for poor connections. See INTERMITTENT OR POOR CONNECTIONS  . Repair as necessary and go to step  23 . If problem does not exist, go to step  19 .
14. Inspect PNP switch for poor connections. See INTERMITTENT OR POOR CONNECTIONS  . Check PNP switch for proper adjustment. See PARK/NEUTRAL POSITION SWITCH . If problem exists, repair as necessary and go to step  23 . If problem does not exist, go to step  20 .
15. Inspect ignition switch harness connector for poor connections. See INTERMITTENT OR POOR CONNECTIONS  . If problem exists, repair as necessary and go to step  23 . If problem does not exist, go to step  21 .
16. Inspect starter solenoid for poor connections. See INTERMITTENT OR POOR CONNECTIONS  . If problem exists, repair as necessary and go to step  23 . If problem doe not exist, go to step  22 .
17. Repair open or high resistance in Red wire between starter relay and underhood fuse block. After repairs, go to step  23 .
18. Repair short to ground in Purple wire between starter relay and starter. After repairs, go to step  23 .
19. Replace starter relay. After repairs, go to step  23 .
20. Replace PNP switch. See PARK/NEUTRAL POSITION SWITCH . After repairs, go to step  23 .
21. Replace ignition switch. See IGNITION & KEY ALARM SWITCH ASSEMBLY . After repairs, go to step  23 .
22. Replace starter. See STARTER  . After repairs, go to next step.
23. Operate system for which symptom occurred. If condition was corrected, system is okay. If condition was not found and corrected, go to step  2 .