Electric Starter (Trx450Er) Troubleshooting - Honda TRX450R Service Manual

ELECTRIC STARTER (TRX450ER)
TROUBLESHOOTING
NOTE:
• The starter motor should operate when the transmission is in neutral or when the transmission is
into gear and the clutch lever is squeezed.
Starter Motor Does Not Turn
1. Fuse Inspection
Check for blown main fuse (15 A).
Is the fuse blown?
YES - Replace the fuse.
NO - GO TO STEP 2.
2. Battery Inspection
Check that the battery is fully charged and in good condition.
Is the battery in good condition?
YES - GO TO STEP 3.
NO - Charge the battery (page 21-7).
3. Starter Relay Switch Operation Inspection
Check the operation of the starter relay switch (page 23-13).
Does the starter relay switch click?
YES - GO TO STEP 4.
NO - GO TO STEP 5.
4. Starter Motor Inspection
Turn the ignition switch to OFF.
Apply battery voltage to the starter motor directly.
Does the starter motor turn?
YES - • Poorly connected starter motor cable.
• Faulty starter relay switch (page 23-13).
NO - Faulty starter motor (page 23-6).
5. Relay Coil Ground Line Inspection
Turn the ignition switch to OFF.
Check the ground line of the starter relay switch (page 23-13).
Is the ground line normal?
NO - • Faulty clutch switch (page 24-8).
• Faulty neutral switch (page 24-10).
• Faulty diode (page 23-14).
• Loose or poor contact of the related connector terminal.
• Open circuit in the wire harness.
YES - GO TO STEP 6.
6. Relay Coil Power Input Line Inspection
Check the power input line of the starter relay switch (page 23-13).
fe the power input line normal?
NO - • Faulty ignition switch (page 24-7).
• Faulty starter switch (page 24-7).
• Loose or poor contact of the related connector terminal.
• Open circuit in the wire harness.
YES - GO TO STEP 7.
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