Pattern Select Switch EV Mode Circuit [08/2023 - ]: 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 or a message is displayed on the 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 

END 

Result: 

A 

See step  2

1. Check the CAN Bus Check.

   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

2. Turn the ignition switch off.

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2023 - ] 

Result: 

A 

See step  3

1. Enter the following menus: System Select / Health Check.
2. Check for DTCs.

   Result

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

3. Turn the ignition switch off.

Result: 

B 

GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2023 - 10/2024]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2024 - ] 

Result: 

A 

See step  4

1. Read the value displayed on the GTS.

   Powertrain > Hybrid Control > Data List 

   Tester Display	Measurement Item	Range	Normal Condition
   EVMS Signal Status	AUTO EV/HV mode switch signal condition	ON or OFF	AUTO EV/HV mode switch not operated: OFF AUTO EV/HV mode switch being pushed and held: ON
   EV Mode Status	EV mode status	Normal / EV Mode / Changing to HV Mode from EV Mode / Changing to EV Mode from HV Mode / EV CITY Mode / Changing to HV Mode from EV CITY Mode / Battery Charge Mode / Changing to HV Mode from Battery Charge Mode / Standby for Battery Charge Mode / EV AUTO Mode / Changing to HV Mode from EV AUTO Mode	-

   Powertrain > Hybrid Control > Data List 

   Tester Display
   EVMS Signal Status
   EV Mode Status

   Result

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

2. Turn the ignition switch off.

Result: 

A 

GO TO PROBLEM SYMPTOMS TABLES. Refer to  PROBLEM SYMPTOMS TABLE [08/2023 - ] 

Result: 

B 

See step  5

Refer to INSPECTION [10/2022 - ]

Result

Result: 

NG 

REPLACE AUTO EV/HV MODE SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY). Refer to  REMOVAL [10/2022 - ] 

Result: 

OK 

See step  6

1. Disconnect the AUTO EV/HV mode switch connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C29-7 (E) - Body ground	Always	Below 1 Ω

3. Reconnect the AUTO EV/HV mode switch connector.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  7

1. Disconnect the hybrid vehicle control ECU connector.
2. Disconnect the AUTO EV/HV mode switch connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C59-42 (EVMS) - C29-13 (B)	Always	Below 1 Ω
   C59-42 (EVMS) or C29-13 (B) - Body ground	Always	10 kΩ or higher

4. Reconnect the AUTO EV/HV mode switch connector.
5. Reconnect the hybrid vehicle control ECU connector.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR