Transmission Position Sensor/Switch: Description and Operation

Manual Lever Position (MLP) Sensor






NOTE: The MLP also contains the Park/Neutral Position Switch and backup lamp circuits.

Description:
The powertrain control module (PCM) sends a voltage signal to the manual lever position (MLP) sensor. The MLP sensor incorporates a series of step-down resistors which act as a voltage divider. The PCM monitors this voltage which corresponds to the position of the manual lever. The MLP is located on the outside of the transaxle at the manual lever.

Transmission Function:
Determine desired gear and EPC pressure.

Symptoms:
Harsh engagements and firm shift feel. No 3/4 shift. May downshift to a lower gear.

DTC's:
634, 522 (three digit) codes. Refer to Three (3) Digit Codes