Dtc P0705/C2 Transmission Range Sensor Circuit Malfunction (Prndl Input)


DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT PARK/NEUTRAL POSITION SWITCH

INSPECT SHIFT LOCK CONTROL ECU

CHECK HARNESS AND CONNECTOR (TCM - BATTERY)

DTC P0705/C2 Transmission Range Sensor Circuit Malfunction (PRNDL Input)


DESCRIPTION

The Park/Neutral Position (PNP) switch detects the shift lever position and sends signals to the TCM.

DTC Code
DTC Detection Condition
Trouble Area
P0705/C2
When either condition below is met (2 trip detection logic):
  1. P, R, N, D, 3 and 2 switch lever position signals are all off simultaneously.
  1. 2 or more of the D, 3, 2 and L shift lever position signals are on simultaneously.
  1. Park/neutral position switch circuit
  2. Shift lock control ECU (Shift lock control unit assembly)
  3. Park/neutral position switch
  4. TCM

MONITOR DESCRIPTION

This DTC indicates a problem with the park/neutral position switch or the wire harness in the park/neutral position switch circuit.
The park/neutral position switch detects the shift lever position and sends a signal to the TCM.
For security, the park/neutral position switch detects the shift lever position so that the engine can be started only when the shift lever is in P or N.
The park/neutral position switch sends a signal to the TCM according to the shift lever position (R, D, 3, 2 or L).
The TCM determines that there is a problem with the switch or related parts if it receives more than 1 position signal simultaneously, or no position signals. The TCM will illuminate the MIL and store the DTC.

WIRING DIAGRAM


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A340F Automatic Transmission.Automatic Transmission System. Dtc P0705/C2 Transmission Range Sensor Circuit Malfunction (Prndl Input)


INSPECTION PROCEDURE

HINT:
Using the Data List of the intelligent tester allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the Data List early in troubleshooting is one way to save time.
  1. Warm up the engine.
  2. Turn the ignition switch off.
  3. Connect the intelligent tester to the DLC3.
  4. Turn the ignition switch to ON and push the tester main switch on.
  5. Enter the following menus: Powertrain / ECT / Data List.
  6. Follow the instructions on the tester and read the Data List.

ECT
Tester Display
Measurement Item/Range
Normal Condition
Diagnostic Note
Neutral Position SW Signal
PNP switch status/
ON or OFF
  1. Shift lever in P or N: ON
  2. Shift lever not in P or N: OFF
When the shift lever position displayed on the intelligent tester differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.
Shift SW Status (R Range)
PNP switch status/
ON or OFF
  1. Shift lever in R: ON
  2. Shift lever not in R: OFF
When the shift lever position displayed on the intelligent tester differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.
Shift SW Status (2 Range)
PNP switch status/
ON or OFF
  1. Shift lever in 2: ON
  2. Shift lever not in 2: OFF
When the shift lever position displayed on the intelligent tester differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.
Shift SW Status (L Range)
PNP switch status/
ON or OFF
  1. Shift lever in L: ON
  2. Shift lever not in L: OFF
When the shift lever position displayed on the intelligent tester differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.
Shift SW Status (D Range)
PNP switch status/
ON or OFF
  1. Shift lever in D: ON
  2. Shift lever not in D: OFF
When the shift lever position displayed on the intelligent tester differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.
Shift SW Status (3 Range)
PNP switch status/
ON or OFF
  1. Shift lever in 3: ON
  2. Shift lever not in 3: OFF
When the shift lever position displayed on the intelligent tester differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.
NOTICE:
In the table above, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
1.INSPECT PARK/NEUTRAL POSITION SWITCH


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A340F Automatic Transmission.Automatic Transmission System. Dtc P0705/C2 Transmission Range Sensor Circuit Malfunction (Prndl Input)

  1. Disconnect the N1 park/neutral position switch connector.

  1. Measure the resistance of the park/neutral position switch when the shift lever is moved to each position.

    Standard Resistance:
    Tester Connection
    		Shift Lever Position
    		Specified Condition
    4 (B) - 5 (L)
    		P or N
    		Below 1 Ω
    4 (B) - 5 (L)
    		Not in P or N
    		10 kΩ or higher
    1 (RL) - 2 (RB)
    		R
    		Below 1 Ω
    1 (RL) - 2 (RB)
    		Not in R
    		10 kΩ or higher
    2 (RB) - 7 (DL)
    		D
    		Below 1 Ω
    2 (RB) - 7 (DL)
    		Not in D
    		10 kΩ or higher
    2 (RB) - 3 (2L)
    		2
    		Below 1 Ω
    2 (RB) - 3 (2L)
    		Not in 2
    		10 kΩ or higher
    2 (RB) - 8 (LL)
    		L
    		Below 1 Ω
    2 (RB) - 8 (LL)
    		Not in L
    		10 kΩ or higher


NG
REPLACE PARK/NEUTRAL POSITION SWITCH
OK


2.INSPECT SHIFT LOCK CONTROL ECU


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A340F Automatic Transmission.Automatic Transmission System. Dtc P0705/C2 Transmission Range Sensor Circuit Malfunction (Prndl Input)

  1. Disconnect the S31 ECU connector.

  1. Measure the resistance of the ECU when the shift lever is moved to each position.

    Standard Resistance:
    Tester Connection
    		Shift Lever Position
    		Specified Condition
    9 (NSSD) - 3 (AT3)
    		D
    		10 kΩ or higher
    9 (NSSD) - 3 (AT3)
    		3
    		Below 1 Ω


NG
REPLACE SHIFT LOCK CONTROL ECU (SHIFT LOCK CONTROL UNIT ASSEMBLY)
OK


3.CHECK HARNESS AND CONNECTOR (TCM - BATTERY)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A340F Automatic Transmission.Automatic Transmission System. Dtc P0705/C2 Transmission Range Sensor Circuit Malfunction (Prndl Input)

  1. Turn the ignition switch to ON.

  1. Measure the voltage of the wire harness side connectors.

    Standard Voltage:
    Tester Connection
    		Shift Lever Position
    		Specified Condition
    T19-12 (NSW) - Body ground
    		P or N
    		Below 1 V
    T19-12 (NSW) - Body ground
    		Not in P or N
    		11 to 14 V
    T38-9 (R) - Body ground
    		R
    		11 to 14 V*
    T38-9 (R) - Body ground
    		Not in R
    		Below 1 V
    T38-8 (D) - Body ground
    		D or 3
    		11 to 14 V
    T38-8 (D) - Body ground
    		Not in D or 3
    		Below 1 V
    T38-12 (3) - Body ground
    		3
    		11 to 14 V
    T38-12 (3) - Body ground
    		Not in 3
    		Below 1 V
    T38-11 (2) - Body ground
    		2 or L
    		11 to 14 V
    T38-11 (2) - Body ground
    		Not in 2 or L
    		Below 1 V
    T38-10 (L) - Body ground
    		L
    		11 to 14 V
    T38-10 (L) - Body ground
    		Not in L
    		Below 1 V
    HINT:
    *: The voltage will drop slightly due to the illumination of the back-up light.


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE TCM