AUTOMATIC TRANSAXLE SYSTEM, Diagnostic DTC:P0705

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

DESCRIPTION

The park/neutral position switch assembly 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)	One of the following conditions (A) through (C) is met (2-trip detection logic) (A) Either of the following conditions 1, 2 or 3 is met: 1. Any 2 or more signals of the following are ON simultaneously: P input signal is ON. R input signal is ON. D input signal is ON. 2. Any 2 or more signals of the following are ON simultaneously: N input signal is ON. R input signal is ON. D input signal is ON. 3. Any 2 or more signals of the following are ON simultaneously: NSW input signal is ON. R input signal is ON. D input signal is ON. (B) All switches are OFF simultaneously for P, N, NSW, R and D. (C) When any of following conditions is met for 2.0 sec. or more in the S position: P input signal is ON. N input signal is ON. NSW input signal is ON. R input signal is ON.	Open or short in park/neutral position switch assembly circuit Park/neutral position switch assembly Transmission control switch (transmission floor shift assembly) ECM	Comes on	DTC stored

MONITOR DESCRIPTION

These DTCs indicate a problem with the park/neutral position switch assembly and the wire harness in the park/neutral position switch assembly circuit.

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

For safety, the park/neutral position switch assembly 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 assembly sends a signal to the ECM according to the shift lever position (P, N, NSW, R, D or S). 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 turn on the MIL and store the DTC.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

Note:

Perform registration and/or initialization when parts related to the automatic transaxle are replaced.

Click here

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.

DATA LIST

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	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 S, "+" or "-" OFF: Shift lever not in S, "+" or "-"	-
Shift SW Status (D Range)	PNP switch status	ON or OFF	ON: Shift lever in D or S OFF: Shift lever not in D or S	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.

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)

PROCEDURE

CHECK HARNESS AND CONNECTOR (ECU-IG NO. 1 FUSE - PARK/NEUTRAL POSITION SWITCH)

Disconnect the park/neutral position switch connector.

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

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

Standard Voltage


Tester Connection	Switch Condition	Specified Condition
B101-1 (RB) - Body ground	Ignition switch ON	11 to 14 V
B101-1 (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)

Disconnect the park/neutral position switch connector.

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

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

Standard Voltage


Tester Connection	Switch Condition	Specified Condition
B101-4 (B) - Body ground	Ignition switch ON	11 to 14 V
B101-4 (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

Disconnect the park/neutral position switch connector.

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

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

Standard Resistance


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

Disconnect the transmission control switch connector.

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

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)

Disconnect the transmission control switch connector.

*a	Component without harness connected (Transmission Control Switch)

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

Result


Proceed to
OK
NG

REPLACE TRANSMISSION FLOOR SHIFT ASSEMBLY

Click here

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

Disconnect the ECM connectors.

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

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

Standard Voltage


Tester Connection	Condition	Specified Condition
B77-70 (P) - Body ground	Ignition switch ON Shift lever in P	11 to 14 V
B77-66 (R) - Body ground	Ignition switch ON Shift lever in R	11 to 14 V*
B77-71 (N) - Body ground	Ignition switch ON Shift lever in N	11 to 14 V
B77-67 (D) - Body ground	Ignition switch ON Shift lever in D	11 to 14 V
A62-27 (S) - Body ground	Ignition switch ON Shift lever in S, "+"or "-"	11 to 14 V
B77-70 (P) - Body ground	Ignition switch ON Shift lever not in P	Below 1 V
B77-66 (R) - Body ground	Ignition switch ON Shift lever not in R	Below 1 V
B77-71 (N) - Body ground	Ignition switch ON Shift lever not in N	Below 1 V
B77-67 (D) - Body ground	Ignition switch ON Shift lever not in D	Below 1 V
A62-27 (S) - Body ground	Ignition switch ON Shift lever not in S, "+" or "-"	Below 1 V

Tip:

*: The voltage will drop slightly due to the illumination of the back-up light.

Result


Proceed to
OK
NG

REPLACE ECM

Click here

REPAIR OR REPLACE HARNESS OR CONNECTOR

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

Disconnect the B101 park/neutral position switch connector.
Disconnect the B77 ECM connector.

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

Standard Resistance


Tester Connection	Condition	Specified Condition
B101-4 (B) - B77-63 (NSW)	Always	Below 1 Ω
B101-4 (B) - Body ground	Always	10 kΩ or higher
B77-63 (NSW) - Body ground	Always	10 kΩ or higher

Result


Proceed to
OK
NG

REPLACE ECM

Click here

REPAIR OR REPLACE HARNESS OR CONNECTOR