INTRODUCTION: REPAIR INSTRUCTION: INSPECTION MODE PROCEDURE; 2019 - 2022 MY Avalon Avalon HV [04/2018

Last Modified: 08-21-2023	6.11:8.1.0	Doc ID: RM100000001A0AE
Model Year Start: 2019	Model: Avalon HV	Prod Date Range: [04/2018 - ]
Title: INTRODUCTION: REPAIR INSTRUCTION: INSPECTION MODE PROCEDURE; 2019 - 2022 MY Avalon Avalon HV [04/2018 - ]

INSPECTION MODE PROCEDURE

INSPECTION MODE (for HV Model)

NOTICE:

When operating the vehicle in an inspection mode for an operation such as a speedometer test, a DTC may be stored. Therefore, if the warning light illuminates, check for DTCs using the Techstream and clear the DTCs.

HINT:

If the engine is warmed up and the HV battery is charged, the engine will stop after the vehicle is stopped. If the engine is required to run continuously even after the vehicle is stopped, such as for an ignition timing check, switch to maintenance mode.

(a) The following table shows the types of inspection mode that are available, their purpose and the control that occurs in each mode.

Mode (Display)	Purpose	Control
2WD MAINTENANCE MODE (2WD for measuring Exhaust Gas)	For inspecting ignition timing, performing engine maintenance, idle speed exhaust emissions testing (CO, HC), etc. For performing tests using a speedometer tester, two-wheel chassis dynamometer, etc.	Keeps the engine idling when the shift lever is in P or park (P) is selected Cancels traction control
2WD CERTIFICATION MODE (2WD for cutting TR(A)C)	For performing tests using a speedometer tester, two-wheel chassis dynamometer, etc.	Cancels traction control
4WD MAINTENANCE MODE (4WD for measuring Exhaust Gas)	For inspecting ignition timing, performing engine maintenance, idle speed exhaust emissions testing (CO, HC), etc. For performing tests using a speedometer tester, four-wheel chassis dynamometer, etc.	Keeps the engine idling when the shift lever is in P or park (P) is selected Cancels traction control
4WD CERTIFICATION MODE (4WD for cutting TR(A)C)	For performing tests using a speedometer tester, four-wheel chassis dynamometer, etc.	Cancels traction control

(b) Vehicle conditions

(1) Before activating inspection mode, turn the air conditioning off, start the hybrid system with the shift lever in P or with park (P) selected, and check that the engine stops within several seconds after starting (engine warm up check).

(2) Activate the appropriate inspection mode and inspect the vehicle:

Test Item	Mode
Vehicle straight traveling test (side slip inspection)	2WD MAINTENANCE MODE, 4WD MAINTENANCE MODE or normal mode
Braking force test	Normal mode
Speedometer test	2WD MAINTENANCE MODE or 4WD MAINTENANCE MODE
Exhaust gas test (idling)	2WD MAINTENANCE MODE or 4WD MAINTENANCE MODE
Headlight test	2WD MAINTENANCE MODE, 4WD MAINTENANCE MODE or normal mode

(3) Cancel inspection mode immediately after completing the inspection.

NOTICE:

Driving the vehicle without canceling inspection mode may damage the hybrid transaxle or the hybrid transmission.

CAUTION:

Be sure to perform the test in 2WD MAINTENANCE MODE or 4WD MAINTENANCE MODE.

NOTICE:

Do not perform rapid starting or quick acceleration on a speedometer tester. If rapid starting or quick acceleration is performed on a speedometer tester, damage may occur to the hybrid transaxle or the hybrid transmission.

(1) Depress the accelerator pedal slowly and gradually accelerate the vehicle. Take a measurement.

(2) After the measurement, use the brakes to gradually decelerate the vehicle.

(d) Special notes for using a chassis dynamometer

CAUTION:

Be sure to perform the test in 2WD MAINTENANCE MODE or 4WD MAINTENANCE MODE.

NOTICE:

Sudden acceleration or deceleration of the vehicle on a chassis dynamometer under minimal load may damage the hybrid transaxle or the hybrid transmission.

(1) Always set an appropriate load before starting the test.

ACTIVATING 2WD MAINTENANCE MODE

HINT:

Refer to the New Car Features manual for the warning messages which are displayed on the multi-information display when maintenance mode is entered.
The engine speed increases to 1500 rpm when the accelerator pedal is depressed midway with the shift lever is in P or park (P) selected. When the accelerator pedal is depressed more than midway, or when the accelerator pedal is fully depressed, the engine speed will increase to approximately 2500 rpm.

(a) NOT USING THE TECHSTREAM

(1) Perform the following steps within 60 seconds.

Turn the ignition switch to ON (IG).
Move the shift lever to P or select park (P) and fully depress the accelerator pedal twice.
Move the shift lever to N or select neutral (N) and fully depress the accelerator pedal twice.
Move the shift lever to P or select park (P) and fully depress the accelerator pedal twice.

(2) Start the engine by turning the ignition switch ON (READY) while depressing the brake pedal.

(3) Check that the 2WD maintenance mode message is displayed on the multi-information display.

(b) USING THE TECHSTREAM

(1) Connect the Techstream to the DLC3.

(2) Turn the ignition switch to ON (IG).

(3) Turn the Techstream on.

(4) Enter following menus: Powertrain / Hybrid Control / Utility / Inspection Mode - 2WD for measuring Exhaust Gas.

(5) Start the engine by turning the ignition switch ON (READY) while depressing the brake pedal.

(6) Check that the 2WD maintenance mode message is displayed on the multi-information display.

HINT:

Refer to the New Car Features manual for the warning messages which are displayed on the multi-information display when certification mode is entered.

ACTIVATING 2WD CERTIFICATION MODE

(a) NOT USING THE TECHSTREAM

(1) Perform the following steps within 60 seconds.

Turn the ignition switch to ON (IG).
Move the shift lever to P or select park (P) and fully depress the accelerator pedal 3 times.
Move the shift lever to N or select neutral (N) and fully depress the accelerator pedal 3 times.
Move the shift lever to P or select park (P) and fully depress the accelerator pedal 3 times.

(2) Turn the ignition switch ON (READY) while depressing the brake pedal.

(3) Check that the 2WD certification mode message is displayed on the multi-information display.

(b) USING THE TECHSTREAM

(1) Connect the Techstream to the DLC3.

(2) Turn the ignition switch to ON (IG).

(3) Turn the Techstream on.

(4) Enter following menus: Powertrain / Hybrid Control / Utility / Inspection Mode - 2WD for cutting TR(A)C.

(5) Turn the ignition switch ON (READY) while depressing the brake pedal.

(6) Check that the 2WD certification mode message is displayed on the multi-information display.

HINT:

Refer to the New Car Features manual for the warning messages which are displayed on the multi-information display when maintenance mode is entered.
The engine speed increases to 1500 rpm when the accelerator pedal is depressed midway with the shift lever is in P or park (P) selected. When the accelerator pedal is depressed more than midway, or when the accelerator pedal is fully depressed, the engine speed will increase to approximately 2500 rpm.

ACTIVATING 4WD MAINTENANCE MODE

(a) NOT USING THE TECHSTREAM

(1) Perform the following steps within 60 seconds.

Turn the ignition switch to ON (IG).
Move the shift lever to P or select park (P) and fully depress the accelerator pedal 4 times.
Move the shift lever to N or select neutral (N) and fully depress the accelerator pedal 4 times.
Move the shift lever to P or select park (P) and fully depress the accelerator pedal 4 times.

(2) Start the engine by turning the ignition switch ON (READY) while depressing the brake pedal.

(3) Check that the 4WD maintenance mode message is displayed on the multi-information display.

(b) USING THE TECHSTREAM

(1) Connect the Techstream to the DLC3.

(2) Turn the ignition switch to ON (IG).

(3) Turn the Techstream on.

(4) Enter following menus: Powertrain / Hybrid Control / Utility / Inspection Mode - 4WD for measuring Exhaust Gas.

(5) Start the engine by turning the ignition switch ON (READY) while depressing the brake pedal.

(6) Check that the 4WD maintenance mode message is displayed on the multi-information display.

ACTIVATING 4WD CERTIFICATION MODE

HINT:

Refer to the New Car Features manual for the warning messages which are displayed on the multi-information display when certification mode is entered.

(a) NOT USING THE TECHSTREAM

(1) Perform the following steps within 60 seconds.

Turn the ignition switch to ON (IG).
Move the shift lever to P or select park (P) and fully depress the accelerator pedal 5 times.
Move the shift lever to N or select neutral (N) and fully depress the accelerator pedal 5 times.
Move the shift lever to P or select park (P) and fully depress the accelerator pedal 5 times.

(2) Turn the ignition switch ON (READY) while depressing the brake pedal.

(3) Check that the 4WD certification mode message is displayed on the multi-information display.

(b) USING THE TECHSTREAM

(1) Connect the Techstream to the DLC3.

(2) Turn the ignition switch to ON (IG).

(3) Turn the Techstream on.

(4) Enter following menus: Powertrain / Hybrid Control / Utility / Inspection Mode - 4WD for cutting TR(A)C.

(5) Turn the ignition switch ON (READY) while depressing the brake pedal.

(6) Check that the 4WD certification mode message is displayed on the multi-information display.

DEACTIVATING INSPECTION MODE

(a) Turn the ignition switch off and wait at least 30 seconds. The hybrid system will turn off simultaneously.

NOTICE:

After deactivating inspection mode, turn the ignition switch to ON and check that the corresponding message is no longer displayed on the multi-information display.