Hummer H2. Manual — part 1609
APP Average
TAC
0-100%
0%
APP Indicated Angle
Eng 1, Eng 2, EE,
CC, FT, TAC,
HO2S
Counts
0
APP Sensor 1
TAC
0-5.0 Volts
0.4-0.9 Volts
APP Sensor 2
TAC
5.0-0 Volts
4.5-4.1 Volts
APP Sensor 1
TAC
0-100%
0%
APP Sensor 2
TAC
0-100%
0%
APP Sensor 1 and 2
TAC
Agree/Disagree
Agree
BARO
Eng 1, EE, FT
kPa
50-104 kPa/Varies
w/Altitude
CMP Sensor - High to
Low
Eng 2
Counts
Varies
CMP Sensor - Low to
High
Eng 2
Counts
Varies
Clutch Pedal Switch
Eng 2
Released/Applied
Released
Coolant Level Switch
Eng 2
OK/Low
OK
Cruise Control Active
Eng 1, TAC, CC
Yes/No
No
Cruise Disengage 1
History
CC
Varies
Varies
Cruise Disengage 2
History
CC
Varies
Varies
Cruise Disengage 3
History
CC
Varies
Varies
Cruise Disengage 4
History
CC
Varies
Varies
Cruise Disengage 5
History
CC
Varies
Varies
Cruise Disengage 6
History
CC
Varies
Varies
Cruise Disengage 7
History
CC
Varies
Varies
Cruise Disengage 8
History
CC
Varies
Varies
Cruise Inhibit Signal
Command
Eng 1
On/Off
On
Cruise On/Off Switch
CC, TAC
On/Off
Off
Cruise Release Brake
Pedal Switch
CC
Released/Applied
Released
Cruise Resume/Accel
Switch
CC, TAC
On/Off
Off
Cruise Set/Coast Switch
CC, TAC
On/Off
Off
Current Gear
Eng 1, 2, FT
0-4
1
2004 Hummer H2
2004 ENGINE PERFORMANCE Engine Controls (Diagnostic Information & Procedures) - 4.8L, 5.3L, and 6.0L -
Hummer H2
Cycles of Misfire Data
MF
0-100 Counts
Varies
Decel Fuel Cutoff
HO2S
Active/Inactive
Inactive
Desired IAC Airflow
Eng 1
0-64 g/s
Varies
Desired Idle Speed
Eng 1, Eng 2, TAC,
EE
RPM
PCM Controlled
DTC Set This Ignition
Eng 1, 2, CC, EE,
FT, HO2S
Yes/No
No
ECT Sensor
Eng 1, Eng 2, EE,
FT, MF, HO2S
-39 to +140°C (-38 to +284°F)
88-105°C (190-221°F)
Engine Load
All
0-100%
1-4% @ Idle
7-9% @ 2500 RPM
Engine Oil Level Switch
Eng 2
OK/Low
OK
Engine Oil Life
Remaining
Eng 2
0-100%
Varies
Engine Oil Pressure
Sensor
Eng 2
Volts
1.5 Volts/Varies
Engine Run Time
All
Hrs, Min, Sec
Varies
Engine Speed
All
0-10,000 RPM
500-700 RPM
EVAP Purge Solenoid
Command
Eng 1, EE, FT
0-100%
10-25%
EVAP Test Result
EE
Test Result
Varies
EVAP Test State
EE
Test State
Varies
EVAP Vent Solenoid
Command
Eng 1, EE, FT
Not Venting/Venting
Venting
Fail Counter
FF
Counts
Varies
Fuel Alcohol Content
Eng 2
%
Varies
Fuel Comp. Sensor
Frequency
Eng 2
Hz
Varies
Fuel Comp. Sensor On
Time
Eng 2
mS
Varies
Fuel Level Sensor
Eng 1, EE
0-5 Volts
0.7-2.5 Volts
Fuel Level Sensor Rear
Tank, if equipped
Eng 1, EE
0-5 Volts
0.7-2.5 Volts
Fuel Tank Level
Remaining
EE
Gallon/Liter
Varies
Fuel Tank Level
Remaining
EE
0-100%
Varies
Fuel Tank Pressure
Sensor
Eng 1, EE
-32.7 to +14.0 mm/Hg (-17.5
to +7.5 in/H2O)
Varies
Fuel Tank Pressure
Sensor
EE
0-5.0 volts
Varies
Fuel Tank Rated
Capacity
EE
98 Liters (25.9 Gallons) or
129 Liters (34 Gallons)
Varies with Fuel Tank
Option
2004 Hummer H2
2004 ENGINE PERFORMANCE Engine Controls (Diagnostic Information & Procedures) - 4.8L, 5.3L, and 6.0L -
Hummer H2
Fuel Temperature
Eng 2
°C/°F
Varies
Fuel Trim Cell
Eng 1, EE, FT
0-23
19
Fuel Trim Learn
Eng 1, EE, FT
Enabled/Disabled
Enabled, May Toggle
Generator F Terminal
Signal
Eng 2
Percent
Varies
Generator L Terminal
Signal Command
Eng 2
Off/On
On
HO2S Bank 1 Sensor 1
Eng 1, EE, FT,
HO2S
Millivolts
10-1,000 mV and Varying
HO2S Bank 1 Sensor 2
Eng 1, FT, HO2S
Millivolts
10-1,000 mV and Varying
HO2S Bank 2 Sensor 1
Eng 1, EE, FT,
HO2S
Millivolts
10-1,000 mV and Varying
HO2S Bank 2 Sensor 2
Eng 1, FT, HO2S
Millivolts
10-1,000 mV and Varying
HO2S Heater BN 1
Sensor 1
HO2S
Amps
Varies
HO2S Heater BN 1
Sensor 2
HO2S
Amps
Varies
HO2S Heater BN 2
Sensor 1
HO2S
Amps
Varies
HO2S Heater BN 2
Sensor 2
HO2S
Amps
Varies
Hot Run Counter
FF
Counts
Varies
IAT Sensor
Eng 1, Eng 2, EE,
FT, HO2S
-39 to +140°C (-38 to +284°F)
35°C (91°F) Depends on
Ambient Temperature
Ignition 1 Signal
Eng 1, Eng 2, CC,
EE, FT, TAC
0-25 Volts
11.5-14.5 Volts
Inj. PWM Bank 1
Average
Eng 2, FT, MF
Milliseconds
2-6
Inj. PWM Bank 2
Average
Eng 2, FT, MF
Milliseconds
2-6
Knock Retard
Eng 1
0.0-16°
0°
Long Term FT Avg. Bn1
FT
Percentage
Near 0%
Long Term FT Avg. Bn2
FT
Percentage
Near 0%
Long Term FT Bank 1
Eng 1, Eng 2, EE,
FT, HO2S
Percentage
Near 0%
Long Term FT Bank 2
Eng 1, Eng 2, EE,
FT, HO2S
Percentage
Near 0%
Loop Status
Eng 1, 2, EE, FT,
HO2S
Open/Closed
Closed
Low Oil Lamp
Command
Eng 2
On/Off
Off
MAF Sensor
Eng 1, Eng 2, EE,
MF, FT, TAC,
Grams Per Seconds (g/s)
1-9 g/s @ Idle, Depends
on Altitude
2004 Hummer H2
2004 ENGINE PERFORMANCE Engine Controls (Diagnostic Information & Procedures) - 4.8L, 5.3L, and 6.0L -
Hummer H2
HO2S
15-26 g/s @ 2,500 RPM,
Depends on Altitude
MAF Sensor
Eng 2
0-31,999 Hz
2,000-3,000 Hz
MAP Sensor
Eng 1, Eng 2, EE,
FT, MF, TAC,
HO2S
kPa
20-48 kPa
MAP Sensor
Eng 1, Eng 2,
FF/FR
Volts
1.0-2.0 Volts
Varies with Altitude
MIL Command
Eng 2
Off/On
Off
Mileage Since DTC
Cleared
Eng 2
kilometers/miles
Varies
Mileage Since First
Failure
FF
Counts
Varies
Mileage Since Last
Failure
FF
Counts
Varies
Misfire Counter Status
MF
Normal/Invalid
Normal
Misfire Current Cyl. 1-8
MF
0-200 Counts
0
Misfire History Cyl. 1-8
MF
0-65,535 Counts
0
Pass Counter
FF
Counts
Varies
PCM Reset
Eng 1, Eng 2, EE,
FT
Yes/No
No
PCM/VCM in VTD Fail
Enable
Eng 1
Yes/No
No
Power Enrichment
Eng 1, HO2S
Active/Inactive
Inactive
Reduced Engine Power
Eng 1, CC, TAC
Active/Inactive
Inactive
Short Term FT Avg Bn1
FT
Percentage
Near 0%
Short Term FT Avg Bn2
FT
Percentage
Near 0%
Short Term FT Bank 1
Eng 1, Eng 2, EE,
FT, HO2S
Percentage
Near 0%
Short Term FT Bank 2
Eng 1, Eng 2, EE,
FT, HO2S
Percentage
Near 0%
Spark
Eng 1, Eng 2, FT,
MF, HO2S
Degrees
15-20°
Start Up ECT
Eng 2, EE, FT
C°/F°
Varies
Stop Lamp Pedal Switch
CC, TAC
Applied/Released
Released
TAC/PCM Comm Signal
TAC, CC
OK/Fault
OK
TCC Enable Solenoid
Command
Eng 1, Eng 2
On/Off
Off
TCC PWM Solenoid
Command
Eng 2
On/Off
Off
TFP Switch
Eng 2, CC, FT
Transmission Gear Position
Varies
Torque Delivered Signal
Eng 2, TAC
N.m lb ft
Varies
Torque Request Signal
Eng 2, TAC
N.m lb ft
406 N.m 299 lb ft
2004 Hummer H2
2004 ENGINE PERFORMANCE Engine Controls (Diagnostic Information & Procedures) - 4.8L, 5.3L, and 6.0L -
Hummer H2
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