GM Service Manual Online
For 1990-2009 cars only

Assist Step Control Module Scan Tool Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Vehicle Running, All Doors Closed

ASC Disable Switch

Data

Inactive, Active

Inactive

ASC Learn Status

Data

Running, Passed, Cancelled

Passed

ASC System Status

Data

Unknown, Normal, Disabled, Locked

Normal

Battery Voltage

Data

Volts

Varies

Driver Door Ajar Sw.

Data

Door Closed, Door Ajar

Stop

Passenger Door Ajar Sw

Data

Door Closed, Door Ajar

Varies

Left Rear Door Ajar Sw

Data

Door Closed, Door Ajar

Varies

Right Rear Door Ajar Sw

Data

Door Closed, Door Ajar

Off

Left ASC Board Commanded

Data

Off, Unknown, Retract , Extend

Varies

Left ASC Board Learned

Data

No, Yes

yes

Left ASC Board Position

Data

Counts

Varies

Right ASC Board Commanded

Data

Off, Unknown, Retract , Extend

Varies

Right ASC Board Learned

Data

No, Yes

Yes

Right ASC Board Position

Data

Counts

Varies