Advanced Diagnostics

Advanced Diagnostics - DTC P1717: Open in Transmission Range Switch ATPRVS Switch Circuit










General Description
The transmission range switch is attached to a control shaft. Operating the shift lever makes the control shaft rotate via the shift cable. The A/T gear position indicator shows which position is selected according to the Low/High signal combinations, which vary based on the control shaft rotational angle. The control shaft changes the position of the transmission range switch, activates the manual valve, and switches hydraulic pressure to shift the transmission through forward/neutral/reverse. The transmission range switch signal is used to determine the shift schedule. The voltage is high (5 V or 12 V) at the powertrain control module (PCM) input terminal when each transmission range switch position signal is open, and it is low (0 V) when each switch position signal is closed. If the RVS position signal is open while driving the vehicle in R, the PCM detects a RVS position signal open failure and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status






Enable Conditions






Malfunction Threshold
The R position signal input is detected but the RVS position signal input is not detected.

Driving Pattern






1. Start the engine.
2. Drive the vehicle in R at 3 mph (5 km/h) or less for at least 2 seconds.
3. Drive the vehicle in R at 3 mph (5 km/h) or more for at least 2 seconds.

- Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

Diagnosis Details

Conditions for setting the DTC
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the PCM memory. If the malfunction returns in the next (second) drive cycle, the MIL comes on and a Confirmed DTC and the freeze data are stored.

Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the battery.