Pattern Select Switch EV Mode Circuit [08/2014 - ]: Procedure

1. Check if a buzzer sounded and a message was displayed on the multi-information display when attempting to enter EV mode.

   Result

   Result	Proceed to
   No buzzer sounded and no message was displayed on multi-information display.	A
   A buzzer sounded and a message was displayed on multi-information display.	B

   HINT: 

   If a buzzer sounds and a message is displayed on multi-information display, one or more of the EV mode entry conditions have not been met. Check that all of the EV mode entry conditions have been met before pressing the EV mode switch.

Result:  B

B 

COMPLETED 

Result:  A

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: System Select / CAN Bus Check.

   Result

   Result	Proceed to
   All of the ECUs and sensors that are currently connected to the CAN communication system are displayed.	A
   None of the ECUs and sensors that are currently connected to the CAN communication system are displayed, or some of them are not displayed.	B

4. Turn the power switch off.

Result:  B

B 

GO TO CAN COMMUNICATION SYSTEM 

(See article. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2014 - ] )

Result:  A

A 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: System Select / Health Check.
4. Check DTCs.
   RESULT
   
   

   Result	Proceed to
   No DTCs are output.	A
   DTCs are output.	B

5. Turn the power switch off.

Result:  B

B 

GO TO DTC CHART 

Result:  A

A 

See step  4

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (READY).
3. Enter the following menus: Body Electrical / Combination Meter / Active Test / Indicat. EV Mode.
4. Perform the "Indicat. EV Mode" Active Test.

   OK

   The EV mode indicator lamp comes on or blinks.

5. Turn the power switch off.

Result:  NG

NG 

REPLACE COMBINATION METER ASSEMBLY 

(See article. Refer to COMPONENTS [08/2014 - ] )

Result:  OK

OK 

See step  5

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Data List / EV request, EV Switch.
4. Read the value displayed on the Techstream.

   Tester Display	Measurement Item/Range	Normal Condition
   EV request	EV mode transition availability/ ON or OFF	In EV mode: ON
   EV Switch	EV mode switch condition/ ON or OFF	EV switch being pushed and held: ON

   Result

   Result	Proceed to
   The Techstream display changes according to the EV mode switch operation.	A
   The Techstream display does not change according to the EV mode switch operation.	B

5. Turn the power switch off.

Result:  A

A 

CHECK FOR INTERMITTENT PROBLEMS 

(See article. Refer to CHECK FOR INTERMITTENT PROBLEMS [08/2014 - ] )

Result:  B

B 

See step  6

1. Remove the combination switch assembly.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H72-3 (S) - H72-14 (E)	EV switch being pushed and held	Below 1 Ω
   	EV switch not pushed	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Combination Switch Assembly)

3. Install the combination switch assembly.

Result:  NG

NG 

REPLACE COMBINATION SWITCH ASSEMBLY (EV MODE SWITCH) 

(See article. Refer to COMPONENTS [08/2014 - ] )

Result:  OK

OK 

See step  7

1. Disconnect connector H72 from the combination switch assembly.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H72-14 (E) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Combination Switch Assembly)

3. Connect the combination switch assembly connector.

Result:  NG

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  OK

OK 

See step  8

1. Disconnect connector H3 from the power management control ECU.
2. Disconnect connector H72 from the combination switch assembly.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H3-13 (EVSW) - H72-3 (S)	Always	Below 1 Ω
   H3-13 (EVSW) or H72-3 (S) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Rear view of wire harness connector (to Power Management Control ECU)
   *b	Front view of wire harness connector (to Combination Switch Assembly)

4. Connect the combination switch assembly connector.
5. Connect the power management control ECU connector.

Result:  OK

OK 

REPLACE POWER MANAGEMENT CONTROL ECU 

(See article. Refer to COMPONENTS [08/2014 - ] )

Result:  NG

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR