LEMON Manuals
: Even more car manuals for everyone
Home
>>
Hummer
>>
2009
>>
H3 Alpha
>>
Repair and Diagnosis
>>
Electrical
>>
Charging Systems
>>
Battery, Charging System And Starting System
>>
Diagnostic Information and Procedures
>>
DTC B1420
>>
Diagnostic Aids
Diagnostic Aids
Overcharging with a battery charger and jump starting may set this DTC.
A high or low voltage value in multiple modules indicates a concern in the charging system.