Internal Mode Switch
The internal mode switch assembly (1) is a dual sliding contact switch attached to the control valve body within the transmission. The nine outputs from the switch indicate which position is selected by the transmission manual shaft. Four outputs (A, B, C, P), are range selection inputs to the ECM. Five outputs (R1, R2, S) are direction selection inputs to the hybrid/EV powertrain control module 1 through the transmission X176 20-way connector. The input voltage at the modules is high when the switch is open and low when the switch is closed to ground. The state of each input is displayed on the scan tool as Internal Mode Switch Range and Internal Mode Switch Range Direction. The Internal Mode Switch Range input parameters represented on the scan tool as Internal Mode Switch A/B/C/P. The Internal Mode Switch Range Direction input parameters represented on the scan tool as Internal Mode Switch 2 - D1, D2, R1, R2 and S.