СИСТЕМА УПРАВЛЕНИЯ ГИБРИДНОЙ СИСТЕМОЙ Pattern Select Switch EV Mode Circuit

DESCRIPTION

The EV mode signal is sent to the power management control ECU. This signal is then transmitted from the power management control ECU via CAN to the combination meter assembly to illuminate the EV mode indicator.

WIRING DIAGRAM

INSPECTION PROCEDURE

If any of the following conditions are not met, EV mode may not be turned on or the mode may be canceled. (A buzzer sounds to indicate that the transition to EV mode is canceled.)

EV Mode Entry Condition	Tester Display	Specified Condition
HV battery charge level	State of Charge (All Bat)	Approximately 50% or higher
Accelerator pedal position	Accelerator Degree	Below approximately 40%
Engine coolant temperature	Engine Coolant Temp	0°C (32°F) or higher
HV battery temperature	Temp of Batt TB1 to TB3	Between -2 to 46°C (28 to 115°F)
Vehicle speed (Varies depending on engine warm-up condition)	Vehicle Spd	Cold: 30 km/h (19 mph) or less Warmed-up: 45 km/h (28 mph)
Win	Charge Control Value	Below 0 kW
Defroster	-	OFF
Cruise control	-	OFF

PROCEDURE

ASK ABOUT VEHICLE CONDITION

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

Tech Tips

If a buzzer sounds and 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 combination switch assembly.

COMPLETED

READ VALUE USING GTS (CAN BUS CHECK)

Connect the GTS to the DLC3.
Turn the power switch on (IG).

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.	for LHD	B
	for RHD	C

Turn the power switch off.

GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

CHECK DTC OUTPUT (HEALTH CHECK)

Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: System Select / Health Check.

Check DTCs.

Result

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

Turn the power switch off.

GO TO DTC CHART

PERFORM ACTIVE TEST USING GTS (EV MODE INDICATOR)
1. Connect the GTS to the DLC3.
2. Turn the power switch on (READY).
3. Enter the following menus: Body Electrical / Combination Meter / Active Test / EV Mode Indicator.
4. Perform the "EV Mode Indicator" Active Test.
  
  OK
  
  The EV mode indicator comes on or blinks.
5. Turn the power switch off.
NG
REPLACE COMBINATION METER ASSEMBLY Click here

OK

OK
The EV mode indicator comes on or blinks.

READ VALUE USING GTS (EV REQUEST, EV SWITCH)

Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Data List / EV request, EV Switch.

Read the value displayed on the GTS.

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

Tester Display

Measurement Item/Range

Normal Condition

EV request

EV mode transition availability/

ON or OFF

In EV mode:

EV Switch

Combination switch assembly (EV mode) condition/

ON or OFF

Combination switch assembly (EV mode) being pushed and held:

Result

Result	Proceed to
The GTS display changes according to the combination switch assembly (EV mode) operation.	A
The GTS display does not change according to the combination switch assembly (EV mode) operation.	B

Turn the power switch off.

INSPECT COMBINATION SWITCH ASSEMBLY Click here

CHECK FOR INTERMITTENT PROBLEMS Click here

INSPECT COMBINATION SWITCH ASSEMBLY

Remove the combination switch assembly Click here.

Text in Illustration
*a	Component without harness connected (Combination Switch Assembly)

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

Standard Resistance

Tester Connection	Switch Condition	Specified Condition
5 (S) - 4 (GND)	Combination switch assembly (EV mode) being pushed and held	Below 10 Ω
5 (S) - 4 (GND)	Combination switch assembly (EV mode) not pushed	10 kΩ or higher

Install the combination switch assembly.

REPLACE COMBINATION SWITCH ASSEMBLY Click here

CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY - BODY GROUND)

Disconnect the N59 combination switch assembly connector.

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

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

Standard Resistance

Tester Connection	Condition	Specified Condition
N59-4 (GND) - Body ground	Always	Below 1 Ω

Reconnect the N59 combination switch assembly connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - COMBINATION SWITCH ASSEMBLY)

Disconnect the N92 power management control ECU connector.
Disconnect the N59 combination switch assembly connector.

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)

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

Standard Resistance

Tester Connection	Condition	Specified Condition
N92-9 (EVSW) - N59-5 (S)	Always	Below 1 Ω
N92-9 (EVSW) or N59-5 (S) - Body ground	Always	10 kΩ or higher

Reconnect the N59 combination switch assembly connector.
Reconnect the N92 power management control ECU connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE POWER MANAGEMENT CONTROL ECU Click here