LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Hummer
>>
2008
>>
H2 4D Utility Pickup
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Controls And Fuel - 6.2L - DTC P1255 To DTC P2635
>>
DTC P1682
>>
Repair Procedures
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Repair Procedures
Perform the
Diagnostic Repair Verification
Relay Replacement (Attached to Wire Harness)
or
Relay Replacement (Within an Electrical Center)
Underhood Electrical Center or Junction Block Replacement
Engine Control Module Replacement
Engine Control Module Programming and Setup