GM Service Manual Online
For 1990-2009 cars only

Radio/Integrated Radio Control (IRC)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF/Radio ON

8-Digit GM Part Number

Module Information

Numeric

Varies

Antenna Signal

System Configuration

dBuV

Varies

Amplifier

System Configuration

Present/Not Present

Varies

Band Number

System Configuration

FM/FM2/AM

Varies

Calibration ID

Module Information

Numeric

Varies

CD Focus Errors

CD Information

Numeric

Varies

CD Load/Unload Errors

CD Information

Numeric

Varies

CD Tracking Errors

CD Information

Numeric

Varies

CD Inserted

CD Information

Yes/No

Varies

Driver Number

System Configuration

1/2

1 (2 if the memory 2 button has been activated)

Julian Date of Build

Module Information

Numeric

Varies

New VIN Counter

System Configuration

Numeric

Varies

Phone

System Configuration

Present/Not Present

Varies

Preset Control

System Configuration

Preset 1-6/Not a Preset

Preset 1-6, if active radio station is a preset

PROM ID

Module Information

Numeric

Varies

Sequence Number

Module Information

Numeric

Varies

Single CD Track Number

CD Information

Numeric

Varies

Source

System Configuration

Off/Tuner/CD/Cassette

Varies

Theft Armed

System Configuration

Yes/No/Learn VIN Number

Varies

Theft Lock

System Configuration

Locked/Unlocked

Unlocked

Total CD Hours

CD Information

Hrs.

Varies

Total Radio Hours

Module Information

Hrs.

Varies

Year Module Built

Module Information

Numeric

Varies

Digital Radio Receiver

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF/Radio ON

8-Digit GM Part Number

ID Information/Module Information

Numeric

Varies

Battery Voltage

Data

Volts

Varies

Component Serial Number

ID Information/Module Information

Numeric

Varies

Digital Radio Antenna

Data

Millivolts or Milliamps

Varies

Ignition Counter

Data

Numeric

Varies

Power Mode

Data

Alphanumeric

Run

Radio ID

ID Information/Module Information

Numeric

Varies

Vehicle Communications Interface Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: 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 ID

Module 2

Alpha-numeric

Generation 6

Signal Strength

Signal Strength

0-100

68

Signal Type

Signal Strength

Analog/Digital

Digital

Software ID

Module 1

3 Digits

146

Time

GPS Data

Time

HH:MM:SS

Transceiver ID

Signal Strength

2-5 Digits

Varies

VCI Module Station ID

Module 2

10 Digits

0002086783

Year Module Built

Module 1

4 Digits

2001