LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Hummer
>>
2009
>>
H2 4D Utility Pickup
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Controls And Fuel - 6.2L - DTC P0010 To DTC P0232
>>
DTC P0068 or P0121
>>
DTC Descriptors
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
DTC Descriptors
DTC P0068
Throttle Body Airflow Performance
DTC P0121
Throttle Position (TP) Sensor 1 Performance