P0705

K41B CVT: CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: P0705: Transmission Range Sensor Circuit Malfunction (PRNDL Input)
P0705 - Transmission Range Sensor Circuit Malfunction (PRNDL Input)

DESCRIPTION

The park/neutral position switch and shift lock control unit assembly (transmission control switch) detect the shift lever position and send signals to the ECM.





MONITOR DESCRIPTION

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

When the park/neutral position switch and shift lock control unit assembly (transmission control switch) send more than one signal at a time from switch positions P, R, N, D, S (Sport driving position) or B (Engine braking position), the ECM interprets this as a fault in the switch. The ECM will turn on the MIL and store 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 signals are input at the same time:





- Condition (C):

When any of following conditions is met, the S (Sport driving) position signal is ON:





COMPONENT OPERATING RANGE





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
- Perform the universal trip to clear permanent DTCs Reading and Clearing Diagnostic Trouble Codes.
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1. READ VALUE USING TECHSTREAM (NEUTRAL POSITION SW SIGNAL AND SHIFT SW STATUS)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

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

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





Result





B -- CHECK HARNESS AND CONNECTOR (BATTERY - PARK/NEUTRAL POSITION SWITCH)
A -- Continue to next step.

2. READ VALUE USING TECHSTREAM (SD SWITCH)

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

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





Result





B -- INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH)

A -- CHECK FOR INTERMITTENT PROBLEMS Electronic Circuit Inspection Procedure

3. INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH)

(a) Disconnect the transmission control switch connector of the shift lock control unit assembly.





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

Standard Resistance:





Text in Illustration





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

4. CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - 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 -- Continue to next step.

5. REPLACE ECM

(a) Replace the ECM Removal.

NEXT -- Continue to next step.

6. PERFORM INITIALIZATION

(a) Perform the initialization Programming and Relearning.

(b) Check for DTCs again Reading and Clearing Diagnostic Trouble Codes.

NEXT -- END

7. CHECK HARNESS AND CONNECTOR (BATTERY - 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:





Text in Illustration





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

8. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

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





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

Standard Resistance:





Text in Illustration





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

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

(a) Disconnect the ECM connectors.

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

Standard Resistance:





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

10. REPLACE ECM

(a) Replace the ECM Removal.

NEXT -- Continue to next step.

11. PERFORM INITIALIZATION

(a) Perform the initialization Programming and Relearning.

(b) Check for DTCs again Programming and Relearning.

NEXT -- END