GM Service Manual Online
For 1990-2009 cars only

Circuit

Transmission Range Selection

P

R

N

D

3

2

1

C CKT 776 (WHT)

X

--

X

--

X

--

X

B CKT 773 (GRY)

--

--

--

X

X

X

X

D CKT 772 (YEL)

--

X

X

X

X

--

--

A CKT 771 (BLK/WHT)

X

X

--

--

X

X

--