CHARGING SYSTEM - TROUBLESHOOTING
G-7flowchartTROUBLESHOOTING
Charging System Troubleshooting
1
Check 1: Check if battery voltage is above 12.6V
NO
Check battery (Refer to page G-8)
YES
2
Check 2: 1. Turn ignition switch ON 2. Check if voltage exists at each terminal of alternator
NO
Check wire harness (Refer to page G-6)
YES
3
Check 3: 1. Start engine 2. Check if alternator warning lamp goes off
NO
Check alternator (Refer to page G-12)
YES
4
Check if drive belt tension is OK (Refer to page G-15)
NO
Adjust drive belt or replace (Refer to page G-15)
YES
Check for dark current (Refer to page G-3)
Check 2 — Alternator terminal voltages
B
OFFApprox. 12V
ONApprox. 12V
ON (Idle)Approx. 14V
L
OFFApprox. 0V
ONApprox. 1V
ON (Idle)Approx. 14V
S
OFFApprox. 12V
ONApprox. 12V
ON (Idle)Approx. 14V