Hummer H2. Manual - part 363

The scan tool displays On or Off. The DIC monitors the signal circuit of the fuel button of the DIC 
switch. A closed switch is displayed as On. 

Displayed Coolant Temp  

The scan tool displays 32-127°C (89-260°F). This is the displayed coolant temperature gauge data. This 
data may differ from the monitored coolant temperature from the PCM. 

Displayed Fuel Level  

The scan tool displays 0- 100%. This is the displayed fuel gauge data. The data may differ from the 
monitored fuel level in the PCM. 

Displayed Odometer  

The scan tool displays 0 to 999999 miles (0 to 999999 kilometers). The scan tool displays the data on the 
odometer in the IPC. 

Displayed Trans Oil Temp  

The scan tool displays 29-157°C (84-315°F). This is the displayed transmission oil gauge data. The data 
may differ from the monitored trans oil temperature from the PCM. 

Displayed Trip Odometer  

The scan tool displays 9999.9 miles (9999.9 kilometers). The scan tool displays the data on the trip 
odometer in the IPC. 

Driver Door Ajar Switch  

The scan tool displays On or Off. The BCM monitors the signal circuit of the driver door ajar switch. An 
open switch is displayed as On with the door open. 

ECT  

The scan tool displays -39 to +140°C (-38 to +284°F). This is the engine coolant temperature as 
monitored by the PCM. 

Elapsed Time (Hours)  

The scan tool displays 00 to 99 Hours. The DIC begins to calculate elapsed time when Elapsed Time is 
displayed on the DIC and the RESET button is pressed. 

Elapsed Time (Minutes)  

The scan tool displays 00 to 59 Minutes. The DIC begins to calculate elapsed time when Elapsed Time is 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Instrument Panel, Gauges, and Console - Hummer H2

  

displayed on the DIC and the RESET button is pressed.

Elapsed Time (Seconds)  

The scan tool displays 00 to 59 Seconds. The DIC begins to calculate elapsed time when Elapsed Time is 
displayed on the DIC and the RESET button is pressed. 

Engine Oil Level Switch  

The scan tool displays OK or Low. This is the state of the engine oil level switch as monitored by the 
PCM. A closed switch is displayed as OK. 

Engine Oil Life Remaining  

The scan tool displays 0-100 percent. This is the engine oil life index that is calculated and maintained by 
the PCM. 

Engine Oil Pressure Sensor  

The scan tool displays 0 to 5 volts. The PCM monitors the engine oil pressure sensor signal circuit where 
a low voltage indicates low pressure. 

Engine Speed  

The scan tool displays 0-9999 RPM. Engine speed is computed by the PCM from the 3X reference input. 
It should remain close to desired idle under various engine loads with the engine idling. 

Engine Speed  

The scan tool displays 0- 9999 RPM. The IPC receives the engine speed from the PCM via the engine 
speed signal circuit. 

Fade  

The scan tool displays -50 to +50. The Fade between the front and rear audio output. 

Fasten Seat Belt  

The scan tool displays On or Off. This is the state of the fasten safety belt indicator as commanded by the 
IPC. 

Fuel Capacity  

The scan tool displays gallons. The DIC receives a class 2 message from the PCM indicating the fuel 
capacity. 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Instrument Panel, Gauges, and Console - Hummer H2

  

Fuel Level Sensor  

The scan tool displays 0-5 volts. The PCM monitors the fuel level sensor signal circuit where 0 V is an 
empty tank. 

Fuel Level Sensor Rear  

The scan tool displays 0-5 volts. The PCM monitors the rear tank fuel level sensor signal circuit where 0 
V is an empty tank. 

Fuel Tank Level Remaining  

The scan tool displays gallons (liters). This is the amount of fuel remaining in the fuel tank as determined 
by the PCM. 

Fuel Tank Level Remaining  

The scan tool displays 0-100%. The scan tool displays in percentage the amount of fuel remaining in the 
fuel tank as determined by the PCM. 

Fuel Tank Rated Capacity  

The scan tool displays gallons (liters). This is the fuel tank rated capacity as determined by the PCM. 

Headlamp Relay Feedback  

The scan tool displays On or Off. This is the state of the headlamp and the panel dimmer switch. The scan 
tool displays On when the headlamp and the panel dimmer switch is turned On or in auto position with 
the ambient light sensor in its dark state. 

Hi Beam Lamp  

The scan tool displays On or Off. This is the state of the high beam indicator as commanded by the IPC. 

High Beam Switch  

The scan tool displays On or Off. This is the position of the high beam switch where an active switch is 
displayed as On. 

Hood Ajar Switch  

The scan tool displays Active or Inactive. The BCM monitors the signal circuit of the hood ajar switch. 
An open switch is displayed as Active with the hood open. 

Hourmeter  

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Instrument Panel, Gauges, and Console - Hummer H2

  

The scan tool displays 0-10,000 hours. This is the PCM accumulated engine run time hours provided to 
the IPC via the class 2 serial data link. 

Ignition 1  

The scan tool displays Active or Inactive. The scan tool displays Active when the ignition switch is in the 
RUN or CRANK position 

Ignition 3  

The scan tool displays Active or Inactive. The scan tool displays Active when the ignition switch is in the 
RUN position only. 

Ignition 1 Signal  

The scan tool displays 0-16 volts. The ignition 1 signal represents the system voltage detected by the 
PCM at the ignition voltage circuit. 

Ignition Voltage  

The scan tool displays the vehicle ignition voltage at the DIC ignition voltage circuit. 

Illumination Input Volt  

The scan tool displays 9-16 volts. The illumination input voltage is the ignition monitored voltage at the 
instrument panel lamp supply voltage circuit at the DIC. 

Key In Ignition  

The scan tool displays Yes or No. The BCM monitors the signal circuit of the ignition key alarm switch. 
The scan tool displays Yes when the ignition key is fully inserted into the ignition switch cylinder. 

Left Rear Cargo Door Ajar Switch  

The scan tool displays On or Off. The BCM monitors the signal circuit of the left rear cargo door ajar 
switch. An open switch is displayed as On with the door open. 

Low Coolant  

The scan tool displays On or Off. This is the state of the low coolant indicator as commanded by the IPC. 

Low Fuel Lamp  

The scan tool displays On or Off. The IPC determines when to illuminate the indicator based on the class 
2 message from the PCM indicating the fuel level percent.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Instrument Panel, Gauges, and Console - Hummer H2