Hummer H2. Manual - part 270

The scan tool displays an 8 digit alphanumeric number. The part number of the module. 

Amp Type  

The scan tool displays the type of amplifier installed in the vehicle, Bose/Non-Bose. 

Antenna Enable  

The scan tool displays Active/Inactive. 

Audio Device  

The scan tool displays Null/Tuner/CD Player. The radio detects the presence of the device that is 
operating. 

Balance  

The scan tool displays -50 to +50. The Balance between the right and left audio output. 

Bass  

The scan tool displays 0-100%. The percentage of bass selected at the radio. 

Battery Voltage  

The scan tool displays 0-18 Volts. The Voltage measured from the radio or amplifier's ignition positive 
voltage circuit to ground. 

Cal. Module 1 Part No.  

The scan tool displays the 8 digit part number of the module. 

Cal. Module 1 Suffix  

The scan tool displays the 2 position suffix of the module. 

CD Changer  

The scan tool displays Connected if a CD changer is detected or Not Connected if no CD changer is 
present. 

CD Changer Disc Number  

The scan tool displays which CD the changer is currently playing. 

CD Changer Track Number  

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Entertainment - Hummer H2

  

The scan tool displays the track number of the disc that is currently playing. 

CD Inserted  

The scan tool displays Yes or No. Whether a CD is loaded or not. 

Chime Type  

The scan tool displays the type of chime select such as fast. 

Chime Speaker  

The scan tool displays Front Left, Front Right, LF Woofer, Back Left, Back Right, RF Woofer. The 
selected chime speaker is displayed 

Chime Volume  

The scan tool displays 0-100%. The percentage at which the chime volume has been calibrated to. 

Component Serial Number  

The scan tool displays the serial number of the module. 

Day  

The scan tool displays the day the software was created. 

Digital Radio Antenna  

This parameter indicates the amount of current being used by the digital radio antenna by measuring the 
voltage drop across an internal resistor. Early design modules support the mV reading while later design 
modules support a mA reading. 

External Audio Device  

The scan tool displays Connected/Not Connected. The radio senses the presence of an external audio 
device. 

Fade  

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

Ignition Counter  

The scan tool displays the number of ignition cycles.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Entertainment - Hummer H2

  

Ignition Since Current DTC 

The scan tool displays 0-225 Cycles. The number of ignition cycles since a current DTC was set. 

Microphone Level  

The scan tool displays 0-100%. The percentage of microphone selected at the radio. 

Midrange  

The scan tool displays 0-100%. The percentage of midrange selected at the radio. 

Month  

The scan tool displays the month the software was created. Mute 

Noise Compensation  

The scan tool displays On/Off. The selected switch position of the noise compensation system. 

Operational S/W Part No.  

The scan tool displays the 8 digit software part number of the module. 

Operational S/W Suffix  

The scan tool displays the 2 position software suffix of the module. 

Personalization  

The scan tool displays Driver 1/ Driver 2. 

Phone  

The scan tool displays whether or not a phone is present or not present. 

Power Mode  

The scan tool displays what power mode the module is on. 

Radio ID  

The scan tool displays the radio ID of the digital radio receiver. 

RSA  

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Entertainment - Hummer H2

  

The scan tool displays Present/Not Present. Present is displayed if rear seat entertainment control is 
installed in the vehicle. 

Signal Strength  

The scan tool displays 0-225 dB. The signal strength of the radio frequency. 

Software Version  

The scan tool displays the version of software. 

Speed Compensated Volume  

The scan tool displays Off/Low/Medium/High according to what the auto volume is set on the module. 

Source  

The scan tool displays Off/Tuner/ICDX/CD/Cassette.This data parameter indicates the source that is 
operating. 

Theft Armed  

The scan tool displays Learned VIN/No VIN. The Scan tool displays Learned VIN when the theft mode 
has been turned ON by recognizing a valid VIN #. 

Theft Locked  

The scan tool displays Locked/Unlocked. The scan tool displays locked when the radio receives the 
incorrect VIN number across Class 2 lines. 

Treble  

The scan tool displays 0-100%. The percentage of treble selected at the radio. 

Volume  

The scan tool displays 0-100%. The percentage of volume selected at the radio. 

Year  

The scan tool displays the year the software was created. 

DIAGNOSTIC TROUBLE CODE (DTC) LIST 

Diagnostic Trouble Code (DTC) List 

DTC

Description

Module

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Entertainment - Hummer H2