LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Hummer
>>
2009
>>
H3 Alpha
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Controls And Fuel - 5.3L - DTC P1380 To DTC P2635
>>
DTC P1682
>>
Repair Procedures
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Repair Procedures
Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
Relay Replacement (Attached to Wire Harness)
or
Relay Replacement (Within an Electrical Center)
Engine Control Module Replacement
Engine Control Module Programming and Setup (LLR)