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