GM Service Manual Online
For 1990-2009 cars only

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/ engine OFF/ tire pressure set to specification/ calibration process is complete.

Auto Learn Mode Active

TIM Data

Yes/No

No

Left Front Wheel Speed

TIM Data

mph

0

Left Rear Wheel Speed

TIM Data

mph

0

Low Tire Pressure

TIM Data

Yes/No

No

Monitor Mode 1

TIM Data

Active/Inactive

Inactive

Monitor Mode 2

TIM Data

Active/Inactive

Inactive

Right Front Wheel Speed

TIM Data

mph

0

Right Rear Wheel Speed

TIM Data

mph

0

TIM Reset Switch

TIM Data

Pressed/Released

Released