FixVault

DTC P0705

DTC P0705:  Transmission Range Switch (Multiple Shift - Position Input)

General Description 

GHH465254Courtesy of HONDA, U.S.A., INC.

Transmission range switch contact point input matrix

Shift lever position/mode  Input per switch 
ATP-P  ATP-R  ATP-RVS1  ATP-RVS2  ATP-N  ATP-D  ATP-S  ATP-FWD1  ATP-FWD2 
O X X X X X X X X
X O O O X X X X X
X X X X O X X X X
X X X X X O X O O
X X X X X X O 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. Signals from the transmission range switch are used to determine forward/neutral/reverse. 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 PCM detects multiple switch inputs instead of the correct switch input for the selected range at that time, it detects a malfunction and stores a DTC.

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

Execution Continuous
Sequence None
Duration 1 second or more
DTC Type One drive cycle, MIL off, A/T gear position indicator blinks
OBD Status PASSED/FAILED/NOT COMPLETED (STILL TESTING)

Enable Conditions 

Condition Minimum Maximum
Battery voltage [Battery Voltage] 11 V -

[ ]: HDS Parameter

Malfunction Threshold 

One of these conditions occurs.

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.

Confirmation Procedure 

With the HDS 

None.

With the Driving Pattern 

  1. Start the engine.
  2. With the brake pedal pressed, place the shift lever in each position/mode for at least 1 second.

Diagnosis Details 

Conditions for setting the DTC 

When a malfunction is detected, the A/T gear position indicator blinks and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory. The MIL does not come on.

Conditions for clearing the DTC 

The A/T gear position indicator comes off by pressing the engine start/stop button to select the OFF mode. The Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the battery.