GM Service Manual Online
For 1990-2009 cars only

Scan Tool Data List Except Holden

Body Control Module (BCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF/Vehicle in PARK/Headlamps in AUTO

Auto Learn Timer

Security Data

Seconds

0-600

Battery Voltage

Data

Volts

Varies

Content Theft Lamp

Security Data

ON/OFF

OFF

Content Theft State

Security Data

ON/OFF

OFF

Door Unlock Switch

Inputs

ACTIVE/INACTIVE

ACTIVE

Driver Door Ajar Switch

Inputs

ACTIVE/INACTIVE

INACTIVE

Module Part Number

ID Information

Numeric

Varies

GM Part Number

ID Information

Numeric

Varies

Ignition 1

Inputs

ACTIVE/INACTIVE

ACTIVE

Ignition 0

Inputs

ACTIVE/INACTIVE

ACTIVE

Passenger Door Ajar Switch

Inputs

ACTIVE/INACTIVE

INACTIVE

Passlock Code

Security Data

Open/Short/Tamper/Numeric

Valid Code 1-10

Passlock Data Voltage

Security Data

Volts

0.86-5 Volts

Passlock Ignition Cycles

Security Data

Cycles

Varies

Passlock Power

Security Data

On/Off

On

Passlock State

Security Data

Ignition Off/Tamper/Fail Enable/Fail Enable Dec/Seedkey Lrn Pend/Seedkey Learn/Auto Learn Pend/Learn Passlock/Monitor Passlock/Normal Decision/Auto Learn

Monitor Passlock

Seed and Key Timer

Security Data

Seconds

0 Seconds

Tamper Timer

Security Data

Seconds

0-600


Instrument Panel Cluster (IPC)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF/Vehicle in PARK/Headlamps in AUTO

Security Lamp

Inputs/Outputs

On/Off

Off


Powertrain Control Module (PCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF/Vehicle in PARK/Headlamps in AUTO

PCM/VCM in VTD Fail Enable

Engine Data 1

Yes/No

No

VTD Auto Learn Timer

Engine Data 1

Active/Inactive

Inactive

VTD Fuel Disable

Engine Data 1

Active/Inactive

Inactive

VTD Fuel Disable Until Ign. OFF

Engine Data 1

Yes/No

No

Scan Tool Data List Holden

Scan tool values from a vehicle that is operating correctly may be used for comparison with the vehicle you are diagnosing. The Scan Tool Data List represents the values that would be seen on a normal operating vehicle under the conditions specified in the first row of the Scan Tool Data List table.

Important: Do not use a scan tool that displays faulty data. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool may result in misdiagnosis and unnecessary parts replacement.

Scan Tool Data List

Scan Tool Parameter

System State

Expected Value

Description

Engine Idling / Operating Temperature / Closed Throttle / Park or Neutral / Closed Loop / Accessories Off

Battery Reconnect

No

Yes

-

This parameter displays the status of the Battery Reconnect.

Engine Start Disabled

No

Yes

-

This parameter displays the status of the Engine Start Disabled.

Ignition Voltage Status

Active

Inactive

-

This parameter displays the status of the Ignition Voltage.

Immobilisation

Active

Inactive

-

This parameter displays the status of the Immobilisation.

Invalid Transponder Key Code

No

Yes

-

This parameter displays the status of the Invalid Transponder Key Code.

Substitution Detection

Failed

OK

-

This parameter displays the status of the Substitution Detection.

System Power Mode

Off

Accessory

Run

Crank

Invalid

-

This parameter displays the status of the System Power Mode.

Tamper Status

Active

Inactive

Not Present

Present

-

This parameter displays the status of the Tamper.

Theft Deterrent DTC

Not Present

Present

-

This parameter displays the status of the Theft Deterrent DTC.

Theft Deterrent Status

Asleep

Wakeup

Normal

Learn Key

Tamper

Monitor Key

Fail Pending

Fail Enabled

Learn Keys Stby

Learn More Keys

Learn Pending

Learn Next Ign

Learn

Learn Completed

No Coded Key

Check Second Key

VIN Check

Subs Detected

Immobilised

Immo Bypass

Immo Bypass Comp

Invalid

-

This parameter displays the status of the Theft Deterrent.

Theft Deterrent Telltale

Off

On

Flashing

Invalid

-

This parameter displays the status of the Theft Deterrent Telltale.

Transponder Key ID Error (Identification)

No

Yes

-

This parameter displays the status of the Transponder Key ID Error.

Transponder Key Number

-

3

This parameter displays the status of the Transponder Key Number.

Transponder Keys Programmed

-

3

This parameter displays the status of the Transponder Key Programmed.

Valid Transponder Key

No

Yes

-

This parameter displays the status of the Valid Transponder Key.

VIN Message Received

No

Yes

-

This parameter displays the status of the VIN Message Received.

VIN Received

No

Yes

-

This parameter displays the status of the VIN Received.

VIN Valid

No

Yes

-

This parameter displays the status of the VIN Valid.

Wrong Transponder Key

No

Yes

-

This parameter displays the status of the Wrong Transponder Key.