GM Service Manual Online
For 1990-2009 cars only

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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

Varies

Component Serial Number 13-16

Module 1

4 Digits

Varies

Date

GPS Data

Date

DD/MM/YY

Electronic Serial Number

Module 2

11 Digits

Varies

GPS Signal

GPS Data

Yes/No

Yes

Julian Date of Build

Module 1

3 Digits

Varies

Module ID

Module 2

Alpha-numeric

Varies

Signal Strength

Signal Strength

0-100

68

Signal Type

Signal Strength

Analog/Digital

Digital

Software ID

Module 1

3 Digits

Varies

Time

GPS Data

Time

HH:MM:SS

Transceiver ID

Signal Strength

2-5 Digits

Varies

VCI Module Station ID

Module 2

10 Digits

Varies

Year Module Built

Module 1

4 Digits

Varies