GM Service Manual Online
For 1990-2009 cars only

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/ engine OFF/ tire pressures set to specification/ Calibration precess is complete.

ABS Reference Speed

TIM Data

km/h or mph

0

Check Tires

TIM Data

Yes/No

No

Ignition Voltage

TIM Data

Volts

12.7

LF Wheel Speed

TIM Data

km/h or mph

0

LR Wheel Speed

TIM Data

km/h or mph

0

RF Wheel Speed

TIM Data

km/h or mph

0

RR Wheel Speed

TIM Data

km/h or mph

0

TIM Auto Learn Mode Active

TIM Data

Yes/No

No

TIM Failed

TIM Data

Yes/No

No

TIM Monitor Mode 1

TIM Data

Yes/No

No

TIM Monitor Mode 2

TIM Data

Yes/No

Yes