CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P0705

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

DESCRIPTION

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


DTC Code	DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other	Trouble Area
P0705	The ignition switch is ON and battery voltage is 10.5 V or higher. 2 or more of the following signals are ON simultaneously: (NSW, P, N) input signal R input signal D input signal 2 seconds 2-trip detection logic	Wire harness or connector Park/neutral position switch assembly Shift lock control unit assembly (Transmission control switch) ECM
	The ignition switch is ON and battery voltage is 10.5 V or higher. All of the following signals are OFF simultaneously: NSW input signal P input signal R input signal N input signal D input signal 60 seconds 2-trip detection logic
	The ignition switch is ON and battery voltage is 10.5 V or higher. Any of the following signals and the M signal are ON simultaneously: NSW input signal P input signal R input signal N input signal 2 seconds 2-trip detection logic

MONITOR DESCRIPTION

This DTC indicates a problem with the park/neutral position switch assembly or the wire harness in the park/neutral position switch assembly 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 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 illuminates the MIL and stores this 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).
Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

READ VALUE USING GTS (NEUTRAL POSITION SW SIGNAL AND SHIFT SW STATUS)

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 / Primary.

In accordance with the display on the GTS, read the Data List.

Table 1. Engine and ECT
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Neutral Position SW Signal	Park/neutral position switch status/ OFF or ON	OFF: Shift lever not in P or N ON: Shift lever in P or N	When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect.
Shift SW Status (P Range)	Park/neutral position switch status/ OFF or ON	OFF: Shift lever not in P ON: Shift lever in P	When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect.
Shift SW Status (R Range)	Park/neutral position switch status/ OFF or ON	OFF: Shift lever not in R ON: Shift lever in R	When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect.
Shift SW Status (N Range)	Park/neutral position switch status/ OFF or ON	OFF: Shift lever not in N ON: Shift lever in N	When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect.
Shift SW Status (D Range)	Park/neutral position switch status/ OFF or ON	OFF: Shift lever not in D or M ON: Shift lever in D or M	When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect.

Table 2. Result
Result	Proceed to
Data display is within Normal Condition range	A
Data display is not within Normal Condition range	B

INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY (POWER SOURCE)Click here

READ VALUE USING GTS (SPORTS MODE SELECTION SW)

Enter the following menus: Powertrain / Engine and ECT / Data List / Primary.

In accordance with the display on the GTS, read the Data List.

Table 3. Engine and ECT
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Sports Mode Selection SW	Sport mode select switch status/ OFF or ON	OFF: Shift lever not in M, "+" or "-" ON: Shift lever in M, "+" or "-"	-

Table 4. Result
Result	Proceed to
Data display is within Normal Condition range	A
Data display is not within Normal Condition range	B

CHECK INTERMITTENT PROBLEMS

(Click here)

INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH (POWER SOURCE))

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

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

Standard Voltage


Tester Connection	Switch Condition	Specified Condition
H48-6 (IG) - Body ground	Ignition switch ON	11 to 14 V
H48-6 (IG) - Body ground	Ignition switch off	Below 1 V

Table 5. Text in Illustration
*a	Front view of wire harness connector (to Shift Lock Control Unit Assembly (Transmission Control Switch))

CHECK POWER SOURCE CIRCUIT (TRANSMISSION CONTROL SWITCH)

INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH)

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

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

Standard Resistance


Tester Connection	Condition	Specified Condition
6 (IG) - 13 (S)	Shift lever in M, "+" or "-"	Below 1 Ω
6 (IG) - 13 (S)	Shift lever not in M, "+" or "-"	10 kΩ or higher

Table 6. Text in Illustration
*a	Component without harness connected (Shift Lock Control Unit Assembly (Transmission Control Switch))

REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY

(Click here)

CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - ECM)

Disconnect the H48 shift lock control unit assembly (transmission control switch) connector.
Disconnect the A76 ECM connector.

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

Standard Resistance


Tester Connection	Condition	Specified Condition
H48-13 (S) - A76-59 (S)	Always	Below 1 Ω
H48-13 (S) - Body ground	Always	10 kΩ or higher
A76-59 (S) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - ECM)

REPLACE ECM
1. Replace the ECM (Click here).
PERFORM INITIALIZATION

(Click here)

INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY (POWER SOURCE)

Disconnect the park/neutral position switch assembly connector.

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

Standard Voltage


Tester Connection	Switch Condition	Specified Condition
C23-1 (RB) - Body ground	Ignition switch ON	11 to 14 V
C23-1 (RB) - Body ground	Ignition switch off	Below 1 V

Table 7. Text in Illustration
*a	Front view of wire harness connector (to Park/Neutral Position Switch Assembly)

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

INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

Disconnect the park/neutral position switch assembly connector.

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

Standard Resistance


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

Table 8. Text in Illustration
*a	Component without harness connected (Park/Neutral Position Switch Assembly)

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

(Click here)

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

Disconnect the C23 park/neutral position switch assembly connector.
Disconnect the A76 and C111 ECM connectors.

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

Standard Resistance


Tester Connection	Condition	Specified Condition
C23-3 (PL) - C111-70 (P)	Always	Below 1 Ω
C23-2 (RL) - C111-64 (R)	Always	Below 1 Ω
C23-8 (NL) - C111-69 (N)	Always	Below 1 Ω
C23-7 (DL) - C111-65 (D)	Always	Below 1 Ω
C23-4 (B) - A76-23 (NSW)	Always	Below 1 Ω
C23-3 (PL) or C111-70 (P) - Body ground and other terminals	Always	10 kΩ or higher
C23-2 (RL) or C111-64 (R) - Body ground and other terminals	Always	10 kΩ or higher
C23-8 (NL) or C111-69 (N) - Body ground and other terminals	Always	10 kΩ or higher
C23-7 (DL) or C111-65 (D) - Body ground and other terminals	Always	10 kΩ or higher
C23-4 (B) or A76-23 (NSW) - Body ground and other terminals	Always	10 kΩ or higher

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

REPLACE ECM
1. Replace the ECM (Click here).
PERFORM INITIALIZATION

(Click here)