GM Service Manual Online
For 1990-2009 cars only

Gear

Shift SOL 1

1-2-3-4 CL PC SOL 5 N.L.

2-6 CL PC SOL 4 N.L.

3-5 REV CL PC SOL 2 N.H.

LOW REV 4-5-6 CL PC SOL 3 N.H.

Gear Ratio

Park

ON

OFF

OFF

OFF

ON

--

Reverse

ON

OFF

OFF

ON

ON

2.940

Neutral

ON

OFF

OFF

OFF

ON

--

1st Braking

ON

ON

OFF

OFF

ON

4.584

1st

OFF

ON

OFF

OFF

OFF

4.584

2nd

OFF

ON

ON

OFF

OFF

2.964

3rd

OFF

ON

OFF

ON

OFF

1.912

4th

OFF

ON

OFF

OFF

ON

1.446

5th

OFF

OFF

OFF

ON

ON

1.000

6th

OFF

OFF

ON

OFF

ON

0.746

Effective Final Drive Ratio - 6T40/45 - 3.17/3.87

For shift solenoid 1, "ON" = Solenoid Energized (Pressurized) "OFF" = Solenoid De-energized (No Pressure).

For pressure control solenoids, "ON" = Pressurized, "OFF" = No Pressure