Toyota CH-R Service Manual: Transmission Control Switch Circuit

Toyota CH-R Service Manual / K114 Cvt / Continuously Variable Transaxle System / Transmission Control Switch Circuit

DESCRIPTION

After moving the shift lever to M, it is possible to change the shift range between M1 and M7 using the transmission control switch. Moving the shift lever to "+" once raises the shift range by one, and moving the shift lever to "-" lowers the shift range by one.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

1.	CHECK DTC OUTPUT

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

Powertrain > Engine and ECT > Trouble Codes

(e) Read the DTCs using the Techstream.

Result	Proceed to
DTCs are not output	A
DTCs are output	B

GO TO DTC CHART

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 and ECT / Data List.

Powertrain > Engine and ECT > Data List

Tester Display
Sports Mode Selection SW

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

Powertrain > Engine and ECT > Data List

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

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

GO TO STEP 8

3.	READ VALUE USING TECHSTREAM (SPORTS SHIFT UP SW AND SPORTS SHIFT DOWN SW)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to 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.

Powertrain > Engine and ECT > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Sports Shift Up SW	Sport shift up switch status	OFF or ON	ON: Shift lever held in "+" OFF: Shift lever not held in "+"	-
Sports Shift Down SW	Sport shift down switch status	OFF or ON	ON: Shift lever held in "-" OFF: Shift lever not held in "-"	-

Powertrain > Engine and ECT > Data List

Tester Display
Sports Shift Up SW
Sports Shift Down SW

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

CHECK FOR INTERMITTENT PROBLEMS

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

(a) Disconnect the F17 shift lock control unit assembly (transmission control switch) connector.

*a	Component without harness connected (Shift Lock Control Unit Assembly (Transmission Control Switch))

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 (SFTU) - 2 (E)	Shift lever held in "+"	Below 1 Ω
3 (SFTU) - 2 (E)	Shift lever in M	10 kΩ or higher
1 (SFTD) - 2 (E)	Shift lever held in "-"	Below 1 Ω
1 (SFTD) - 2 (E)	Shift lever in M	10 kΩ or higher

REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH)

5.	CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH) - BODY GROUND)

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

*a	Front view of wire harness connector (to Shift Lock Control Unit Assembly (Transmission Control Switch))

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

Standard Resistance:

Tester Connection	Switch Condition	Specified Condition
F17-2 (E) - Body ground	Always	Below 1 Ω

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

6.	CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)

(a) Disconnect the ECM connector.

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

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
A38-43 (SFTD) - Body ground	Shift lever held in "-"	Below 1 Ω
A38-43 (SFTD) - Body ground	Shift lever in M	10 kΩ or higher
A38-42 (SFTU) - Body ground	Shift lever held in "+"	Below 1 Ω
A38-42 (SFTU) - Body ground	Shift lever in M	10 kΩ or higher

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

7.	REPLACE ECM

(a) Replace the ECM.

Click here

PERFORM INITIALIZATION

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

(a) Disconnect the F17 shift lock control unit assembly (transmission control switch) connector.

*a	Component without harness connected (Shift Lock Control Unit Assembly (Transmission Control Switch))

(b) 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	Below 1 Ω
4 (IG) - 5 (S)	Shift lever not in M	10 kΩ or higher

REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH)

9.	CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH) POWER SOURCE)

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

*a	Front view of wire harness connector (to Shift Lock Control Unit Assembly (Transmission Control Switch))

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
F17-4 (IG) - Body ground	Ignition switch ON	11 to 14 V
F17-4 (IG) - Body ground	Ignition switch off	Below 1 V

CHECK POWER SOURCE CIRCUIT (TRANSMISSION CONTROL SWITCH)

10.	CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)

(a) Disconnect the F17 shift lock control unit assembly (transmission control switch) connector.

(b) Disconnect the A38 ECM connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
F17-5 (S) - A38-59 (S)	Always	Below 1 Ω
F17-5 (S) - Body ground and other terminals	Always	10 kΩ or higher
A38-59 (S) - Body ground and other terminals	Always	10 kΩ or higher

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

11.	REPLACE ECM

(a) Replace the ECM.

Click here

PERFORM INITIALIZATION

Output Speed Sensor Circuit No Signal (P0722,P077C,P077D)

DESCRIPTION The ECM receives a signal from the transmission revolution sensor (NOUT) installed in the continuously variable transaxle and determines the output shaft (secondary pulley) speed in o ...

Front Differential Oil Seal

...

Other materials:

Toyota CH-R Service Manual > Pre-collision System: Skid Control Buzzer Circuit (C1A4A)
DESCRIPTION The millimeter wave radar sensor assembly is connected to the forward recognition camera via CAN communication. The millimeter wave radar sensor assembly operates the pre-collision alarm by sending a buzzer request signal to the pre-collision city buzzer. If the millimeter wave ra ...

Toyota CH-R Owners Manual > Adjusting the steering wheel and mirrors: Steering wheel
Adjustment procedure 1. Hold the steering wheel and push the lever down. 2. Adjust to the ideal position by moving the steering wheel horizontally and vertically. After adjustment, pull the lever up to secure the steering wheel. Horn To sound the horn, press on or close to the mark. ...