GM Service Manual Online
For 1990-2009 cars only

PCM Scan Tool Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF

A/C High Side Pressure

Engine Data 1

kPa/psi

420 kPa (61 psi)

A/C High Side Pressure

Engine Data 1

volts

0.8 volts

A/C Off For WOT

Engine Data 1

Yes/No

No

A/C Pressure Disable

Engine Data 1

Yes/No

No

A/C Request

Engine Data 1

Yes/No

Varies

Commanded A/C

Engine Data 1

On/Off

No

ECT

All

C/F

Varies