DTC P0706: Transmission Range Switch (Open) (2013-17)
General Description
Transmission range switch contact point input matrix
2013 - 2015 models
| Shift lever position | Input per switch | ||||||
|---|---|---|---|---|---|---|---|
| ATP-P | ATP-R | ATPRVS | ATP-N | ATP-D | ATP-S | ATP-FWD | |
| P | O | X | X | X | X | X | X |
| R | X | O | O | X | X | X | X |
| N | X | X | X | O | X | X | X |
| D | X | X | X | X | O | X | O |
| S | X | X | X | X | X | O | O |
2016 model on and after
| Shift lever position | Input per switch | ||||||
|---|---|---|---|---|---|---|---|
| ATP-P | ATP-R | ATPRVS | ATPN | ATPD | ATPS | ATP FWD | |
| P | O | X | X | X | X | X | X |
| R | X | O | O | X | X | X | X |
| N | X | X | X | O | X | X | X |
| D | X | X | X | X | O | X | O |
| S | X | X | X | X | X | O | O |
O: Closed X: Open
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 is open, and it is low (0 V) when each switch is closed. If the FWD switch stays open while the vehicle repeatedly accelerates to a specified vehicle speed and then stops despite being in D or S, the PCM detects a malfunction in the transmission range switch (open) and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type, OBD Status
| Execution | Continuous |
| Sequence | None |
| Duration | Depending on the driving conditions |
| DTC Type | Two drive cycles, MIL on, A/T gear position indicator off |
| OBD Status | PASSED/FAILED/NOT COMPLETED (STILL TESTING) |
Enable Conditions
| Condition | Minimum | Maximum |
|---|---|---|
| Battery voltage [BATTERY VOLTAGE] | 11 V | - |
| No active DTCs set (prevents monitor from running) | P0705, P0721, P0722 | |
[ ]: HDS Parameter
Malfunction Threshold
No FWD position signal [FORWARD SWITCH (ATPFWD)] is detected when the vehicle speed [VEHICLE SPEED] changes from 6 mph (10 km/h) ? 25 mph (40 km/h) ? 6 mph (10 km/h) in D or S.
Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
- Transmission range switch ATP-FWD*1 (ATPFWD)*2 line open (includes connector loose connection or disconnection)
- Transmission range switch failure
- Shift cable adjustment failure
- PCM internal circuit failure
*1: 2013 - 2015 models *2: 2016 model on and after
Confirmation Procedure
With the HDS
None.
With the Driving Pattern
- 1.
Start the engine.
- 2.
Accelerate the vehicle in D to 25 mph (40 km/h) or more.
- 3.
Slow down to 6 mph (10 km/h) for several seconds.
- 4.
Stop the vehicle, and press the engine start/stop button to select the OFF mode.
- 5.
Repeat Driving Pattern steps 1 through 3.
- 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.