Honda 2006 TRX680FA Service Manual page 510

BATTERY/CHARGING SYSTEM
TROUBLESHOOTING
BAnERV IS DAMAGED OR WEAK
1. Battery Test
Remove the battery (page 20-6).
Check the battery condition using the recommended battery tester.
RECOMMENDED BAnERY TESTER: BM-21G-AH (U.S.A. only), BM-210,
BATTERY MATE (MTP08·0192, U.S.A. only) or equivalent
1& the battery
in
good condition?
No - Faulty battery
YES - GO TO STEP 2.
2. Current Leakage Test
Install the battery (page 20-6).
Check the battery current leakage test (Leak test: page 2(}"'7l.
Is the current leakage below 1 rnA?
YES - GOTO STEP 4.
NO - GOTO STEP 3.
3. Current Leakage Test With Regulator/Rectifier Connector Disconnected
Disconnect the requlator/rectltler connector and recheck the battery current leakage.
Is the current leakage below 1 rnA?
YES - Faulty regulator/rectifier
NO - . Shorted wire harness
• Faulty ignition switch
4. Alternator Charging Coil Inspection
Check the alternator charging call (page
20-81.
Is the alternator charging roil resistance within 0.1-
ton
120"C/68"F)?
YES - GO TO STEP 5.
NO - Faulty charging coil
5.
Charging Voltage Inspection
Measure and record the
betterv
voltage using a digital multimeter (page
20-61·
Start the engine.
Measure the charging voltage (page
20-81.
Compare the measurements to the results of the foilowing calculation.
STANDARD:
Measured
BV
< Measured
CV
<
15.5 V
• BV
=
Battery voltage
• CV
=
Charging
voltage
Is the measured charging voltage within the standard voltage?
YES - Faulty battery
NO - GO TO STEP 6.
6. Regulator/Rectifier System Inspection
Check the voltage and resistance at the regulator/rectifier connector (page 20-9).
Are the measurements correct?
YES - Faulty regulator/rectifier
NO _. Open circuit in related wire
• Loose or poor contacts of related terminal
• Shorted wire harness
20-5