Circuit Description

The and gear start switch enables the operator to select a 2nd gear start for increased traction in slippery driving conditions. When the operator selects 2nd gear, the second gear start switch input signal momentarily toggles to zero volts. The PCM then turns ON the 2nd gear start mode indicator lamp and de-energizes the 1-2 shift solenoid, enabling second gear. This 2nd gear start mode indicator lamp is located within the 2nd gear start switch.

During light and medium acceleration conditions, the vehicle starts in 2nd gear when second gear is selected. However, 2nd gear starts are overridden and 1st gear stabs occur if a hard acceleration condition (wide open throttle) is requested. Normal 1st gear start mode is obtained by toggling the 2nd gear start switch again, or when the ignition switch is cycled OFF then ON.