GM Service Manual Online
For 1990-2009 cars only

Range

A

B

C

P

P

OFF

ON

ON

OFF

R - Transitional

OFF

OFF

ON

OFF

R

OFF

OFF

ON

ON

Neu Transitional

ON

OFF

ON

ON

N

ON

OFF

ON

OFF

D5 - Transitional

ON

OFF

OFF

OFF

D - 5

ON

OFF

OFF

ON

3 - Transitional

OFF

OFF

OFF

ON

3

OFF

OFF

OFF

OFF

2 - Transitional

OFF

ON

OFF

OFF

2

OFF

ON

OFF

ON

1 - Transitional

ON

ON

OFF

ON

1

ON

ON

OFF

OFF

Invalid

ON

ON

ON

ON

Invalid

ON

ON

ON

OFF

Invalid

ON

OFF

OFF

OFF

ON = Open Circuit

OFF = Grounded Circuit