Hummer H2. Manual - part 569

The scan tool displays 0 to 65535 counts. The value displayed is the horizontal seat position sensor 
counts stored by the driver seat module as the memory 2 position setting. 

Mem 1 Rear Vertical Value  

The scan tool displays 0 to 65535 counts. The value displayed is the rear vertical seat position sensor 
counts stored by the driver seat module as the memory 1 position setting. 

Mem 2 Rear Vertical Value  

The scan tool displays 0 to 65535 counts. The value displayed is the rear vertical seat position sensor 
counts stored by the driver seat module as the memory 2 position setting. 

Mem 1 Recline Value  

The scan tool displays 0.0 to 5.0 volts. The value displayed is the recline position sensor signal voltage 
stored by the driver seat module as the memory 1 position setting. 

Mem 2 Recline Value  

The scan tool displays 0.0 to 5.0 volts. The value displayed is the recline position sensor signal voltage 
stored by the driver seat module as the memory 2 position setting. 

Software Part Number  

The scan tool displays the software identification number in the driver seat module. 

Software Design Suffix  

The scan tool displays the version of the software part number in the driver seat module. 

Driver Door Module 

Heated Seat Switch  

The scan tool displays Active or Inactive. When the heated seat cushion switch is pressed the scan tool 
displays Active. 

Heat Indicator Low  

The scan tool displays On or Off. The scan tool displays the current status of the low heat operating mode 
determined by the heated seat switch signal circuit inputs to the driver door module. 

Heat Indicator Medium  

The scan tool displays On or Off. The scan tool displays the current status of the medium heat operating 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Seats - Hummer H2

  

mode determined by the heated seat switch signal circuit inputs to the driver door module.

Heat Indicator High  

The scan tool displays On or Off. The scan tool displays the current status of the high heat operating 
mode determined by the heated seat switch signal circuit inputs to the driver door module. 

Back Only Heat Indicator  

The scan tool displays On or Off. The scan tool displays the current status of the heated seat back only 
operating mode determined by the heated seat switch signal circuit inputs to the driver door module. 

Back Only Heat Switch  

The scan tool displays Active or Inactive. When the heated seat back switch is pressed the scan tool 
displays Active. 

Memory Switch  

The scan tool displays Memory 1, Memory 2, Both, or Idle. The scan tool displays the current memory 
switch status determined by the memory 1 and memory 2 signal circuit inputs to the driver door module. 

Heat Indicator Low  

The scan tool displays On or Off. Whenever the low heat indicator is commanded on by the driver door 
module the scan tool displays On. 

Heat Indicator Medium  

The scan tool displays On or Off. Whenever the medium heat indicator is commanded on by the driver 
door module the scan tool displays On. 

Heat Indicator High  

The scan tool displays On or Off. Whenever the high heat indicator is commanded on by the driver door 
module the scan tool displays On. 

Back Only Heat Indicator  

The scan tool displays On or Off. Whenever the heated seat back only indicator is commanded on by the 
driver door module the scan tool displays On. 

Passenger Door Module 

Heated Seat Switch  

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Seats - Hummer H2

  

The scan tool displays Active or Inactive. When the heated seat cushion switch is pressed the scan tool 
displays Active. 

Heat Indicator Low  

The scan tool displays On or Off. The scan tool displays the current status of the low heat operating mode 
determined by the heated seat switch signal circuit inputs to the passenger door module. 

Heat Indicator Medium  

The scan tool displays On or Off. The scan tool displays the current status of the medium heat operating 
mode determined by the heated seat switch signal circuit inputs to the passenger door module. 

Heat Indicator High  

The scan tool displays On or Off. The scan tool displays the current status of the high heat operating 
mode determined by the heated seat switch signal circuit inputs to the passenger door module. 

Back Only Heat Indicator  

The scan tool displays On or Off. The scan tool displays the current status of the heated seat back only 
operating mode determined by the heated seat switch signal circuit inputs to the passenger door module. 

Back Only Heat Switch  

The scan tool displays Active or Inactive. When the heated seat back switch is pressed the scan tool 
displays Active. 

Heat Indicator Low  

The scan tool displays On or Off. Whenever the low heat indicator is commanded on by the passenger 
door module the scan tool displays On. 

Heat Indicator Medium  

The scan tool displays On or Off. Whenever the medium heat indicator is commanded on by the 
passenger door module the scan tool displays On. 

Heat Indicator High  

The scan tool displays On or Off. Whenever the high heat indicator is commanded on by the passenger 
door module the scan tool displays On. 

Back Only Heat Indicator  

The scan tool displays On or Off. Whenever the heated seat back only indicator is commanded on by the 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Seats - Hummer H2

  

passenger door module the scan tool displays On.

DIAGNOSTIC TROUBLE CODE (DTC) LIST 

Diagnostic Trouble Code (DTC) List 

DTC B1770, B1775, B1780, B1785, B1790, B1805, OR B2415 

Circuit Description 

The seat adjuster motors are controlled by the driver seat module through the adjuster motor control circuits. In 
an inactive state both of the motor control circuits are grounded within the driver seat module. In an active state 
the driver seat module switches the appropriate motor control circuit to battery positive voltage. The direction 
of the adjuster motor rotation is determined by which of the motor control circuits is switched to battery 
positive voltage while the other remains grounded. During adjuster motor operation the driver seat module also 
monitors the current flow through the motor control circuits. 

Conditions for Running the DTC 

The system voltage must be between 9.0-16.0 volts. 

Conditions for Setting the DTC 

DTC

Diagnostic Procedure

Modules

B1770 DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

DSM

B1775 DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

DSM

B1780 DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

DSM

B1785 DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

DSM

B1790 DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

DSM

B1805 DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

DSM

B1825 DTC B1825

DSM

B1850 DTC B1850, B1860, B1960, B2355, B2365, or B2375

DSM

B1860 DTC B1850, B1860, B1960, B2355, B2365, or B2375

DSM

B1960 DTC B1850, B1860, B1960, B2355, B2365, or B2375

DSM

B2355 DTC B1850, B1860, B1960, B2355, B2365, or B2375

DSM

B2365 DTC B1850, B1860, B1960, B2355, B2365, or B2375

DSM

B2375 DTC B1850, B1860, B1960, B2355, B2365, or B2375

DSM

B2415 DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

DSM

B2425 DTC B2425 or B2430

DSM

B2430 DTC B2425 or B2430

DSM

B2435 DTC B2435 or B2440

DSM

B2440 DTC B2435 or B2440

DSM

B3941 DTC B3941

DSM

B3962 DTC B3962

DSM

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Seats - Hummer H2