CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P0705

DTC Code	DTC Name
P0705	Transmission Range Sensor Circuit Malfunction (PRNDL Input)

DESCRIPTION

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


DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P0705	Transmission Range Sensor Circuit Malfunction (PRNDL Input)	1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other The ignition switch is ON. One of the following conditions is met: (a) 2 or more of the P, N, NSW, R and D shift lever position signals are on simultaneously. (b) The P, N, NSW, R and D shift lever position signals are all off simultaneously. (c) The P, N, NSW or R shift lever position signal is on when the shift lever is in M. 2 seconds for conditions (a) and (c) above, and 60 seconds for condition (b) above 2 trip detection logic	Open or short in park/neutral position switch circuit Park/neutral position switch assembly Transmission control switch (Transmission floor shift assembly) ECM	Comes on	DTC stored

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 ECM.

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 ECM according to the shift lever position (P, R, N, D or M).

The ECM determines that there is a problem with the switch or related parts if it receives more than 1 position signal simultaneously. The ECM will illuminate the MIL and store the DTC.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

Note:

Perform initialization when parts related to the continuously variable transaxle are replaced.
Click here
Check that no DTCs are stored after performing initialization.
Click here

DATA LIST

Tip:

Using the GTS to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

Note:

In the table below, 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.

Warm up the engine.
Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Data List.

According to the display on the GTS, read the Data List.

Powertrain > Engine and ECT > Data List


Tester Display
Neutral Position SW Signal
Shift SW Status (P Range)
Shift SW Status (R Range)
Shift SW Status (N Range)
Sports Mode Selection SW
Shift SW Status (D Range)

Powertrain > Engine and ECT > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Neutral Position SW Signal	PNP switch status	ON or OFF	ON: Shift lever in P or N OFF: Shift lever not in P or N	When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.
Shift SW Status (P Range)	PNP switch status	ON or OFF	ON: Shift lever in P OFF: Shift lever not in P	When the shift lever position displayed on the GTS 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	ON: Shift lever in R OFF: Shift lever not in R	When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.
Shift SW Status (N Range)	PNP switch status	ON or OFF	ON: Shift lever in N OFF: Shift lever not in N	When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.
Sports Mode Selection SW	Sport mode select switch status	ON or OFF	ON: Shift lever in M, "+" or "-" OFF: Shift lever not in M, "+" or "-"	-
Shift SW Status (D Range)	PNP switch status	ON or OFF	ON: Shift lever in D or M OFF: Shift lever not in D or M	When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.

PROCEDURE

CHECK HARNESS AND CONNECTOR (GAUGE FUSE - PARK/NEUTRAL POSITION SWITCH)

*a	Front view of wire harness connector (to Park/Neutral Position Switch Assembly)

Disconnect the park/neutral position switch connector.

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

Standard Voltage


Tester Connection	Switch Condition	Specified Condition
B36-1 (RB) - Body ground	Ignition switch ON	11 to 14 V
B36-1 (RB) - Body ground	Ignition switch off	Below 1 V

Result


Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

CHECK HARNESS AND CONNECTOR (NSW TERMINAL VOLTAGE)

*a	Front view of wire harness connector (to Park/Neutral Position Switch Assembly)

Disconnect the park/neutral position switch connector.

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

Standard Voltage


Tester Connection	Switch Condition	Specified Condition
B36-4 (B) - Body ground	Ignition switch ON	11 to 14 V
B36-4 (B) - Body ground	Ignition switch off	Below 1 V

Result


Proceed to
OK
NG

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM)Click here

INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

*a	Component without harness connected (Park/Neutral Position Switch Assembly)

Disconnect the park/neutral position switch connector.

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

Standard Resistance


Tester Connection	Condition	Specified Condition
1 (RB) - 3 (PL)	Shift lever in P	Below 1 Ω
4 (B) - 9 (L)	Shift lever in P	Below 1 Ω
1 (RB) - 2 (RL)	Shift lever in R	Below 1 Ω
1 (RB) - 8 (NL)	Shift lever in N	Below 1 Ω
4 (B) - 9 (L)	Shift lever in N	Below 1 Ω
1 (RB) - 7 (DL)	Shift lever in D, M, "+" or "-"	Below 1 Ω
1 (RB) - 3 (PL)	Shift lever not in P	10 kΩ or higher
4 (B) - 9 (L)	Shift lever not in P	10 kΩ or higher
1 (RB) - 2 (RL)	Shift lever not in R	10 kΩ or higher
1 (RB) - 8 (NL)	Shift lever not in N	10 kΩ or higher
4 (B) - 9 (L)	Shift lever not in N	10 kΩ or higher
1 (RB) - 7 (DL)	Shift lever not in D, M, "+" or "-"	10 kΩ or higher

Result


Proceed to
OK
NG

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

Click here

CHECK HARNESS AND CONNECTOR (ECU-IG NO. 1 FUSE - TRANSMISSION CONTROL SWITCH)

*a	Front view of wire harness connector (to Transmission Control Switch)

Disconnect the transmission control switch connector.

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

Standard Voltage


Tester Connection	Switch Condition	Specified Condition
G36-4 (IG) - Body ground	Ignition switch ON	11 to 14 V
G36-4 (IG) - Body ground	Ignition switch off	Below 1 V

Result


Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

INSPECT TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY)

*a	Component without harness connected (Transmission Control Switch)

Disconnect the transmission control switch connector.

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

Standard Resistance


Tester Connection	Condition	Specified Condition
4 (IG) - 5 (S)	Shift lever in M, "+" or "-"	Below 1 Ω
4 (IG) - 5 (S)	Shift lever not in M, "+" or "-"	10 kΩ or higher

Result


Proceed to
OK
NG

REPLACE TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY)

Click here

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH, TRANSMISSION CONTROL SWITCH - ECM)

*a	Front view of wire harness connector (to ECM)

Disconnect the ECM connectors.

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

Standard Voltage


Tester Connection	Condition	Specified Condition
B75-99 (P) - Body ground	Ignition switch ON Shift lever in P	11 to 14 V
B75-79 (R) - Body ground	Ignition switch ON Shift lever in R	11 to 14 V
B75-97 (N) - Body ground	Ignition switch ON Shift lever in N	11 to 14 V
B75-81 (D) - Body ground	Ignition switch ON Shift lever in D	11 to 14 V
A62-41 (S) - Body ground	Ignition switch ON Shift lever in M, "+" or "-"	11 to 14 V
B75-99 (P) - Body ground	Ignition switch ON Shift lever not in P	Below 1 V
B75-79 (R) - Body ground	Ignition switch ON Shift lever not in R	Below 1 V
B75-97 (N) - Body ground	Ignition switch ON Shift lever not in N	Below 1 V
B75-81 (D) - Body ground	Ignition switch ON Shift lever not in D	Below 1 V
A62-41 (S) - Body ground	Ignition switch ON Shift lever not in M, "+" or "-"	Below 1 V

Result


Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE ECM

Replace the ECM.
- for 3ZR-FAE:
  Click here
- for 3ZR-FE:
  Click here

Result


Proceed to
NEXT

PERFORM INITIALIZATION

Click here

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

Disconnect the B36 park/neutral position switch connector.
Disconnect the B75 ECM connector.

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

Standard Resistance


Tester Connection	Condition	Specified Condition
B36-4 (B) - B75-63 (NSW)	Always	Below 1 Ω
B36-4 (B) - Body ground	Always	10 kΩ or higher
B75-63 (NSW) - Body ground	Always	10 kΩ or higher

Result


Proceed to
OK
NG

REPLACE ECMClick here

REPAIR OR REPLACE HARNESS OR CONNECTOR