Hyundai HL955 Manual page 649

2. WHEN BATTERY LAMP LIGHTS UP WHEN BATTERY LAMP LIGHTS UP (engine is started)
·Before carrying out below procedure, check all the related connectors are properly inserted.
·After checking, connect the disconnected connectors again immediately unless otherwise
specified.
Check voltage
YES
between CN-4
(18) and chassis
Voltage : 26~30V
Check voltage
between
alternator
terminal "2" and
chassis
Voltage : 26~30V
Starting switch : ON
NO
CONTROLLER(MCU)
B33
CN-58B
Check valtage
YES 20 ~ 30 V
NO 0 V
YES
Check voltage
YES
between CN-58B
(B33) and chassis
NO
Voltage : 27.5~30V
NO
18
CN-4
7-98
Cause Remedy
Defective Replace
controller
Disconnection in Repair or replace
wiring harness or (after clean)
poor contact
between CN-58B
(B33) and CN-4 (18)
Disconnection in Repair or replace
wiring harness or (after clean)
poor contact
between CN-14
(18) and alternator
terminal " 2 "
Defective alternator Replace
ALTERNATOR
" 2 " TERMINAL
760F7EL38