2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 199Get this manual
Starting System:
Starter Motor will not Run
NOTE Make sure the fuses are not blown and the battery is fully-charged before diagnosingTroubleshooting Step Action 1) Shift the transfer to neutral2) Turn on the ignition switch with the engine stop switch in the "RUN" position and listen for click from the starter relay when the starter button is pushed2 Yes Go to step 2
B827H21904002
No Go to step 3
Is click sound heard? Check if the starter motor runs when its terminal is Faulty starter relayFaulty starter motorconnected to the battery (+) terminal(Do not use thin "wire" Loose or because large amount of current flows disconnected starter motor lead wireDoes the starter motor run? Loose or disconnected between starter relay and battery (+) terminalGo to Step Faulty ignition switch Faulty engine stop switch Faulty neutral relay Faulty starter button Poor contact of connector Open circuit in wire harnessFaulty starter relay
Measure the starter relay voltage at the starter relay connectors (between YB (+) and BW ()) when the starter button is pushedIs the voltage OK?