Toyota Venza: Transmission Range Sensor Circuit Malfunction (PRNDL Input) (P0705)

Toyota Venza Service Manual / 1ar-fe Engine Control / Sfi System / Transmission Range Sensor Circuit Malfunction (PRNDL Input) (P0705)

DESCRIPTION

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

DTC No.	DTC Detection Condition	Trouble Area
P0705	One of the following conditions A, B or C is met (2 trip detection logic): A. One of the following conditions (a), (b) or (c) is met: (a) Any 2 or more signals of the following are on simultaneously: P input signal R input signal D input signal (b) Any 2 or more signals of the following are on simultaneously: N input signal R input signal D input signal (c) Any 2 or more signals of the following are on simultaneously: NSW input signal R input signal D input signal B. Any of the following conditions is met for 2 seconds or more in the S position: NSW input signal is on P input signal is on N input signal is on R input signal is on C. All switches are off simultaneously for NSW, P, R, N and D.	Open or short in park/neutral position switch circuit Short in park/neutral position switch assembly Open or short in transmission control switch circuit Shift lock control unit assembly ECM

DTC No.

DTC Detection Condition

Trouble Area

P0705

One of the following conditions A, B or C is met (2 trip detection logic):

A. One of the following conditions (a), (b) or (c) is met:

(a) Any 2 or more signals of the following are on simultaneously:

P input signal
R input signal
D input signal

(b) Any 2 or more signals of the following are on simultaneously:

N input signal
R input signal
D input signal

NSW input signal
R input signal
D input signal

B. Any of the following conditions is met for 2 seconds or more in the S position:

NSW input signal is on
P input signal is on
N input signal is on
R input signal is on

C. All switches are off simultaneously for NSW, P, R, N and D.

Open or short in park/neutral position switch circuit
Short in park/neutral position switch assembly
Open or short in transmission control switch circuit
Shift lock control unit assembly
ECM

MONITOR DESCRIPTION

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

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

For security, 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, R, N, 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.

MONITOR STRATEGY

Related DTCs	P0705: Park/Neutral Position Switch Assembly Verify Switch Input
Required sensors/Components	Park/neutral position switch assembly
Frequency of operation	Continuous
Duration	2 seconds: Case 1 and 3 60 seconds: Case 2
MIL operation	2 driving cycles
Sequence of operation	None

TYPICAL ENABLING CONDITIONS

Case 1 and 2

Monitor runs whenever the following DTCs are not stored	None
All of the following conditions are met	-
Ignition switch	ON
Battery voltage	10.5 V or more
Starter	OFF

Case 3

Monitor runs whenever the following DTCs are not stored	None
All of the following conditions are met	-
Ignition switch	ON
Battery voltage	10.5 V or more
Starter	OFF
One of the following conditions is met:	(a), (b), (c) or (d)
(a) Park/neutral position switch	ON
(b) Park position switch	ON
(c) Neutral position switch	ON
(d) R range position switch	ON

TYPICAL MALFUNCTION THRESHOLDS

Case 1

Any two of the following conditions are met:	A, B and C
A. One of the following conditions is met:	(a), (b) or (c)
(a). Park position switch	ON
(b). Neutral position switch	ON
(c). Park/neutral position switch	ON
B. R range position switch	ON
C. D range position switch	ON

Case 2

All of the following conditions are met	-
Park position switch	OFF
Neutral position switch	OFF
Park/neutral position switch	OFF
R range position switch	OFF
D range position switch	OFF

Case 3

S range position switch

CONFIRMATION DRIVING PATTERN

Connect the Techstream to the DLC3.
Turn the ignition switch to ON and turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the Clear DTC procedure) (See page ).

Turn the ignition switch off and wait for at least 30 seconds.
Turn the ignition switch to ON and turn the Techstream on.
Move the shift lever to R and wait 2 seconds or more.
Move the shift lever to N and wait 2 seconds or more.
Move the shift lever to D and wait 2 seconds or more.
Move the shift lever to S and wait 2 seconds or more.
Move the shift lever to P and wait 2 seconds or more.
Wait 1 minute or more.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the Pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P0705.

Check the DTC judgment result.

Techstream Display	Description
NORMAL	DTC judgment completed System normal
ABNORMAL	DTC judgment completed System abnormal
INCOMPLETE	DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions
N/A	Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit

HINT:

If the judgment result shows NORMAL, the system is normal.
If the judgment result shows ABNORMAL, the system has a malfunction.

If the test result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and check for permanent DTCs (See page ).
HINT:
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTC is output, the system is normal.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT:

Using the Techstream 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 by discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

1. DATA LIST

NOTICE:

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.

(a) Warm up the engine.

(b) Turn the ignition switch off.

(d) Turn the ignition switch to ON.

(e) Turn the Techstream on.

(f) Enter the following menus: Powertrain / Engine / Data List.

(g) Read the values displayed on the Techstream.

Techstream Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Shift SW Status (R Range)	Park/neutral position switch assembly status: ON or OFF	ON: Shift lever in R OFF: Shift lever not in R	When shift lever position displayed on Techstream differs from actual position, adjustment of park/neutral position switch assembly or shift cable may be incorrect
Shift SW Status (P Range)	Park/neutral position switch assembly status: ON or OFF	ON: Shift lever in P OFF: Shift lever not in P	When shift lever position displayed on Techstream differs from actual position, adjustment of park/neutral position switch assembly or shift cable may be incorrect
Shift SW Status (N Range)	Park/neutral position switch assembly status: ON or OFF	ON: Shift lever in N OFF: Shift lever not in N	When shift lever position displayed on Techstream differs from actual position, adjustment of park/neutral position switch assembly or shift cable may be incorrect
Shift SW Status (D Range)	Park/neutral position switch assembly status: ON or OFF	ON: Shift lever in D or S OFF: Shift lever not in D or S	When shift lever position displayed on Techstream differs from actual position, adjustment of park/neutral position switch assembly or shift cable may be incorrect
Sports Mode Selection SW	Sport Mode Select Switch Status: ON or OFF	ON: Shift lever in S OFF: Shift lever not in S	-

PROCEDURE

1.	READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

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

(e) Read the values displayed on the Techstream.

OK:

Techstream Display	Shift Lever	Specified Condition
Neutral Position SW Signal	P or N	ON
Neutral Position SW Signal	Except P or N	OFF
Shift SW Status (R Range)	R	ON
Shift SW Status (R Range)	Except R	OFF
Shift SW Status (P Range)	P	ON
Shift SW Status (P Range)	Except P	OFF
Shift SW Status (N Range)	N	ON
Shift SW Status (N Range)	Except N	OFF
Shift SW Status (D Range)	D or S	ON
Shift SW Status (D Range)	Except D or S	OFF

GO TO STEP 4

2.	READ VALUE USING TECHSTREAM (SPORTS MODE SELECTION SW)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Powertrain / Engine / Data List / Sports Mode Selection SW.

(e) Read the values displayed on the Techstream.

OK:

Techstream Display	Shift Lever	Specified Condition
Sports Mode Selection SW	S	ON
Sports Mode Selection SW	Except S	OFF

CHECK FOR INTERMITTENT PROBLEMS

3.	INSPECT TRANSMISSION CONTROL SWITCH

(a) Inspect the transmission control switch (See page for U760E, See page
for U760F).

Result	Proceed to
OK	A
NG (for U760E)	B
NG (for U760F)	C

REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - TRANSMISSION CONTROL SWITCH)

REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY

4.	CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY VOLTAGE)

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

(b) Turn the ignition switch to ON.

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
B2-1 (RB) - Body ground	Ignition switch ON	11 to 14 V

Text in Illustration

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

REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - BATTERY)

5.	INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

(a) Inspect the park/neutral position switch assembly (See page for U760E, See page
for U760F).

Result	Proceed to
OK	A
NG (for U760E)	B
NG (for U760F)	C

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

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

(a) Disconnect the ECM connector.

(b) Turn the ignition switch to ON.

Standard Voltage:

Tester Connection	Condition	Specified Condition
B58-32 (P) - Body ground	Ignition switch ON Shift lever in P	11 to 14 V
B58-32 (P) - Body ground	Ignition switch ON Shift lever in any position other than P	0 to 1.5 V
B58-33 (R) - Body ground	Ignition switch ON Shift lever in R	11 to 14 V
B58-33 (R) - Body ground	Ignition switch ON Shift lever in any position other than R	0 to 1.5 V
B58-34 (N) - Body ground	Ignition switch ON Shift lever in N	11 to 14 V
B58-34 (N) - Body ground	Ignition switch ON Shift lever in any position other than N	0 to 1.5 V
B58-30 (D) - Body ground	Ignition switch ON Shift lever in D or S	11 to 14 V
B58-30 (D) - Body ground	Ignition switch ON Shift lever in any position other than D or S	0 to 1.5 V

REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

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

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

(b) Disconnect the ECM connector.

Standard Resistance (Check for Open):

Tester Connection	Condition	Specified Condition
B2-4 (B) - B58-47 (NSW)	Always	Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection	Condition	Specified Condition
B2-4 (B) or B58-47 (NSW) - Body ground	Always	10 kΩ or higher

REPLACE ECM

REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - ECM)

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