2003-2005 Suzuki LT-A500F Service Manual, Page 322Get this manual
ELECTRICAL SYSTEM
TROUBLESHOOTING
Does not shift to 2WD4WD (2WD4WD motor will not run Turn on the ignition switchListen for click from the 2WD4WD selecting relay when the 2WD4WD selecting button is pushed
Check the 2WD4WD motor( 8-25) Does not run Faulty 2WD4WD motor Faulty 2WD4WD selecting relay Improper 2WD4WD motor coupler connection
Runs No click
Check the 2WD4WD selecting button( 8-36) Correct