GM Service Manual Online
For 1990-2009 cars only

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop

Brake Fluid Level

Inputs

OK/Low

OK

Right Turn Signal Switch

Inputs

On/Off

Off

Left Turn Signal Switch

Inputs

On/Off

Off

Park Brake Switch

Inputs

On/Off

Off

Washer Fluid Level

Inputs

OK/Low

OK

Oil Level

Inputs

OK/Low

OK

Trans Range A

Inputs

LO/HI

LO

Trans Range B

Inputs

LO/HI

HI

Trans Range C

Inputs

LO/HI

HI

Trans Range P

Inputs

LO/HI

LO

Oil Pressure Switch

Inputs

Open/Closed

Open

Low Coolant Level

Inputs

OK/Low

OK

DIM Level

Gauges

Volts

--

DIM Reference

Gauges

Volts

--

Vehicle Speed

Gauges

km/h/MPH

0

Engine Speed

Gauges

RPM

0

Battery Voltage

Gauges

Volts

13.0

Fuel Level

Gauges

liter/gal

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