Diagnostic trouble code (DTC) information CEM-3F83
Condition
The central electronic module (CEM) receives information from the transmission on a hardwired cable indicating when park or neutral are engaged. The central electronic module (CEM) also receives a signal indicating the position of the gear-shift position sensor from the transmission control module (TCM) via the controller area network (CAN).
The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) detects that the gear-shift selector lever is in position P or N but the position received from the transmission control module (TCM) on the controller area network (CAN) indicates a different position.
The diagnostic trouble code (DTC) can be diagnosed in ignition positions II and III.
Substitute Value
- None.
Possible Source
- Short-circuit to ground in the cable from the gear-shift position sensor.
Fault symptom[s]
- The park neutral position (PNP) switch does not function.