GM Service Manual Online
For 1990-2009 cars only
Table 1: Module Information
Table 2: Passlock Module Data
Table 3: Vehicle Control Module Data

Module Information

Ignition Switch in the RUN position/Vehicle in PARK

Scan Tool Parameter

Units Displayed

Typical Data Value

Manufacturers Enable Counter

0-255

0

Module Part Number

NUMERIC

16XXXXXX (Varies with Vehicle)

Passlock Module Data

Ignition Switch in the RUN position/Vehicle in PARK

Scan Tool Parameter

Units Displayed

Typical Data Value

Passlock™ Data Voltage

Volts

0.86-4.28 Volts - Typical

Passlock™ State

Ignition OFF/Normal Decision/Learn Passlock™/Tamper/Monitor Passlock™/Fail Enabled/Fail Enabled Dec/Seedkey Lrn Pend/Seedkey Learn/Auto Lrn Pend/Auto Learn

Monitor Passlock™

Passlock™ Code

Open/Short/Tamper/Numeric

Valid Code XX

Security Lamp Feedback

Volts

0.0-16.0 Volts (Varies)

Battery Voltage

Volts

9.0-16.0 Volts (Varies)

Ignition 1

ACTIVE/INACTIVE

ACTIVE

Passlock™ Power

ACTIVE/INACTIVE

ACTIVE

Tamper Timer

SECONDS

0-600 Seconds

Auto Learn Timer

SECONDS

0-600 Seconds

Security Lamp State

ON/OFF/FLASHING

OFF

Vehicle Control Module Data

Ignition Switch in the RUN position/Vehicle in PARK

Scan Tool Parameter

Units Displayed

Typical Data Value

VTD Fuel Disable

ACTIVE/INACTIVE

INACTIVE