Hummer H2. Manual - part 211

SCAN TOOL DATA LIST (GEN 5) 

Scan Tool Data List (Gen 5) 

SCAN TOOL DATA LIST (GEN 6) 

Scan Tool Data List (Gen 6) 

6

Does the scan tool display DTC U1500?

Go to Diagnostic 

Trouble Code 

(DTC) List

Go to Diagnostic Trouble 

Code (DTC) List in Data 

Link Communications

7

Does the scan tool display DTC B1000, B1004, 
B1007, or B1009?

Go to Diagnostic 

Trouble Code 

(DTC) List in 

Body Control 

System

Go to Step 8

8

Does the scan tool display DTC B1327 or B1328?

Go to Diagnostic 

Trouble Code 

(DTC) List in 

Engine Electrical

Go to Diagnostic Trouble 

Code (DTC) List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON with engine OFF

8-Digit GM Part Number

Module 2

8 Digits

93807890

Component Serial Number 13-16

Module 1

4 Digits

0007

Electronic Serial Number

Module 2

11 Digits

16832516749

Julian Date of Build

Module 1

3 Digits

067

Module I.D.

Module 2

10 Digits

Generation 4/5

Software I.D.

Module 1

3 Digits

146

VCI Module Station I.D.

Module 2

10 Digits

0002086783

Year Module Built

Module 1

4 Digits

2001

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON with Engine OFF

8-Digit GM Part Number

Module 2

8 Digits

93807890

Component Serial Number 13-16

Module 1

4 Digits

0007

Date

GPS Data

Date

DD/MM/YY

Electronic Serial Number

Module 2

11 Digits

16832516749

GPS Signal

GPS Data

Yes/No

Yes

Julian Date of Build

Module 1

3 Digits

067

Module I.D.

Module 2

Alpha-numeric

Generation 6

Signal Strength

Signal Strength

0-100

68

Signal Type

Signal Strength

Analog/Digital

Digital

Software I.D.

Module 1

3 Digits

146

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Cellular Communication - Hummer H2

  

SCAN TOOL DATA DEFINITIONS (GEN 5) 

8 Digit GM Part Number  

This displays the part number for the vehicle communication interface module (VCIM). 

Component Serial Number 13-16  

This is the third partition of the serial number. 

Electronic Serial Number  

This is the electronic serial number stored in the VCIM which is used by the OnStar(R) Call Center. 

Julian Date of Build  

This displays the day of the year the module was built. 

Module I.D.  

This displays the version of OnStar(R) which the vehicle is equipped with. 

Software I.D.  

This displays the 3-digit number of the software version used on the OnStar VCIM. 

VCI Module Station I.D.  

This is the station identification number stored in the VCIM which is used by the OnStar(R) Call Center. 

Year Module Build  

This displays the year the module was built. 

SCAN TOOL DATA DEFINITIONS (GEN 6) 

8-Digit GM Part Number  

This displays the part number for the vehicle communication interface module (VCIM). 

Time

GPS Data

Time

HH:MM:SS

Transceiver ID

Signal Strength

2-5 Digits

Varies

VCI Module Station I.D.

Module 2

10 Digits

0002086783

Year Module Built

Module 1

4 Digits

2001

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Cellular Communication - Hummer H2

  

Component Serial Number 13-16  

This is the third partition of the serial number. 

Date  

This is the date as synchronized with global positioning system (GPS) satellites. 

Electronic Serial Number  

This is the electronic serial number stored in the VCIM which is used by the OnStar(R) Call Center. 

GPS Signal  

This displays the status of a received GPS signal. 

Julian Date of Build  

This displays the day of the year the module was built. 

Module I.D.  

This displays the version of OnStar(R) which the vehicle is equipped with. 

Signal Strength  

This displays a calculated value for cellular reception signal strength. A higher number indicates a 
stronger signal. 

Signal Type  

This displays whether the Generation 6 OnStar(R) VCIM is currently operating in a digital or analog 
market. 

Software I.D.  

This displays the 3-digit number of the software version used on the OnStar(R) VCIM. 

Time  

This displays the time as synchronized with GPS Satellites. 

Transceiver ID  

This displays the ID number of the cellular tower that the OnStar(R) VCIM is using for cellular signal.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Cellular Communication - Hummer H2

  

VCI Module Station I.D.  

This is the station identification number stored in the VCIM which is used by the OnStar(R) Call Center. 

Year Module Build  

This displays the year the module was built. 

DIAGNOSTIC TROUBLE CODE (DTC) LIST 

Diagnostic Trouble Code (DTC) List 

DTC B2455 

Circuit Description 

The vehicle communication interface module (VCIM) detects that the cellular microphone is connected through 
the cellular microphone signal circuit and the cellular microphone low reference circuit. 

Conditions for Running the DTC 

z

The ignition must be in the RUN or ACC position.  

z

The system voltage is at least 9.5 volts and no more than 15.5 volts.  

z

All the above conditions are present for greater than 10 seconds.  

Conditions for Setting the DTC 

z

The VCIM detects an open in the cellular microphone signal circuit or drain wire circuit.  

z

The VCIM detects a short to voltage in the cellular microphone signal circuit.  

z

The above conditions are present for greater than 10 seconds.  

Action Taken When the DTC Sets 

z

The VCIM will not receive any signal from the microphone.  

z

Calls can be placed but the caller cannot be heard.  

z

The OnStar(R) status LED turns RED. 

DTC

Diagnostic Procedure

Module(s)

B2455

DTC B2455

OnStar(R) VCIM

B2470

DTC B2470

OnStar(R) VCIM

B2476

DTC B2476

OnStar(R) VCIM

B2482

DTC B2482

OnStar(R) VCIM

B2483 or B2484

DTC B2483 or B2484

OnStar(R) VCIM

U1500

DTC U1500

OnStar(R) VCIM

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Cellular Communication - Hummer H2