
Charging System – V6  Page 6D1-1-1 
Section 6D1-1 
Charging System – V6 
ATTENTION 
Before performing any service operations or other procedure described in this Section, refer to Section 00 
Warnings, Cautions and Notes for correct workshop practices with regard to safety and / or property damage. 
1 General Information...............................................................................................................................3 
1.1 Components........................................................................................................................................................... 3 
Generator................................................................................................................................................................ 3 
Generator Types ................................................................................................................................................ 3 
Voltage Regulator.................................................................................................................................................. 4 
1.2 System Operation .................................................................................................................................................. 5 
Operation ........................................................................................................................................................... 5 
Alternator Warning ............................................................................................................................................. 5 
2 Diagnosis ................................................................................................................................................6 
2.1 Diagnostic General Information............................................................................................................................ 6 
Basic Diagnostic Tools Required......................................................................................................................... 6 
2.2 Tech 2 Data List ..................................................................................................................................................... 7 
2.3 Diagnostic Systems Check................................................................................................................................... 8 
2.4 Wiring Diagram ...................................................................................................................................................... 9 
2.5 Charging System Inoperative / Malfunctioning................................................................................................. 10 
Diagnostic Table Notes .................................................................................................................................... 10 
Diagnostic Table 100A Generator.................................................................................................................... 10 
Diagnostic Table 120A Generator.................................................................................................................... 10 
3 Minor Service Operations....................................................................................................................11 
3.1 Safety Precautions............................................................................................................................................... 11 
3.2 Maintenance......................................................................................................................................................... 12 
Regular Checks.................................................................................................................................................... 12 
Lubrication........................................................................................................................................................ 12 
3.3 On-vehicle Testing............................................................................................................................................... 13 
On-vehicle Checks 100A Generator ................................................................................................................... 13 
Prerequisites .................................................................................................................................................... 13 
Generator Test................................................................................................................................................. 13 
On-vehicle Checks 120A Generator ................................................................................................................... 16 
Prerequisites .................................................................................................................................................... 16 
Generator Test................................................................................................................................................. 16 
Charging Circuit Voltage Drop Test................................................................................................................... 19 
Prerequisites .................................................................................................................................................... 19 
Voltage Drop Test ............................................................................................................................................ 19 
4 Major Service Operations....................................................................................................................20 
4.1 Generator.............................................................................................................................................................. 20 
Remove................................................................................................................................................................. 20 
Reinstall................................................................................................................................................................ 21 
4.2 Generator Mounting Bracket............................................................................................................................... 22 
Remove................................................................................................................................................................. 22 
Reinstall................................................................................................................................................................ 22 
4.3 Drive Belt Routing................................................................................................................................................ 23 
Without Air Conditioning .................................................................................................................................... 23 
With Air Conditioning.......................................................................................................................................... 24 
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