L Position: 1st-Hold Gear

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The PCM controls the shift solenoid (SS) valves and the AT CPC solenoid valve A and B.

The condition of the SS valves and the position of the shift valves are as follows:

SS valve A is turned ON, and shift valve A is in the right side.
SS valve B is turned ON, and shift valve B is in the right side.
SS valve C is turned ON, and shift valve C is moved to the right side by modulator pressure (6).

The PCM also controls AT CPC solenoid valve B to apply LS B pressure (57) to CPC valve B. Line pressure (4) from the manual valve becomes 1st clutch pressure (10) at shift valve C. 1st clutch pressure (10) is applied to the 1st clutch, and the 1st clutch is engaged. Line pressure (4) also flows to CPC valve B, and becomes CPC B pressure (4B). CPC B pressure (4B) becomes 1st-hold clutch pressure (15) at shift valve D, via shift valves C, B, and A. 1st-hold clutch pressure (15) is applied to the 1st-hold clutch, and the 1st-hold clutch is engaged.

When used, "left" or "right" indicates direction on the hydraulic circuit.