P0705

U340E AUTOMATIC TRANSAXLE: AUTOMATIC TRANSAXLE SYSTEM: P0705: Transmission Range Sensor Circuit Malfunction (PRNDL Input)
P0705 - Transmission Range Sensor Circuit Malfunction (PRNDL Input)

DESCRIPTION

The park/neutral position switch detects the shift lever position and sends signals to the ECM.





MONITOR DESCRIPTION

This DTC indicates a problem with the park/neutral position switch and 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 ECM.

For safety, the park/neutral position switch detects the shift lever position so that the engine can be started only when the shift lever is in the P or N position.

The park/neutral position switch sends a signal to the ECM according to the shift position (P, R, N, D, 2 or L). The ECM determines that there is a problem with the switch or related parts if it receives 2 or more position signals simultaneously or it receives no position signal. The ECM turns on the MIL and stores the DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS

One of the following conditions is met: Condition (A), (B) or (C)

Condition (A)

When 2 or more of the following signals are input at the same time





Condition (B)

All of the following conditions are met





Condition (C)

When any of following conditions is met, the 3 position input signal is ON for 2 seconds or more (2-trip detection logic).





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
Perform the universal trip to clear permanent DTCs DTC Check / Clear.

1. DATA LIST

HINT
Using the Data List displayed by the Techstream, you can read the values of the switches, sensors, actuators and so on without parts removal. Reading the Data List as the first step of troubleshooting is one method of shortening labor time.

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Enter the following menus: Powertrain / Engine and ECT / Data List / All Data.

(f) In accordance with the display on the Techstream, read the Data List.





PROCEDURE

1. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PARK/NEUTRAL POSITION SWITCH)





(a) Disconnect the park/neutral position switch connector.

(b) Turn the ignition switch to ON.

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (NSW TERMINAL VOLTAGE)





(a) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





NG -- CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM)
OK -- Continue to next step.

3. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY





(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Removal
OK -- Continue to next step.

4. INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (SHIFT LOCK CONTROL ECU)





(a) Disconnect the shift lock control ECU connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - SHIFT LOCK CONTROL ECU)





(a) Connect the park/neutral position switch connector.

(b) Turn the ignition switch to ON.

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL ECU - ECM)





(a) Connect the shift lock control ECU connector.

(b) Disconnect the ECM connector.

(c) Turn the ignition switch to ON.

(d) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

7. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM)





(a) Disconnect the ECM connector.

(b) Turn the ignition switch to ON.

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





HINT
*: The voltage will drop slightly due to the back up light being turned on.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE ECM Removal

8. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM)





(a) Disconnect the ECM connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE ECM Removal