Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

Use these procedures to troubleshoot the heated steering wheel system.

PROCEDURE

1.	VEHICLE BROUGHT TO WORKSHOP

2.	INSPECT AUXILIARY BATTERY VOLTAGE

(a) Measure the auxiliary battery voltage with the power switch off.

Standard voltage:

11 to 14 V (Power switch off)

If the voltage is below 11 V, replace or recharge the auxiliary battery before proceeding to the next step.

3.	PROBLEM SYMPTOMS TABLE

HINT:

Refer to Problem Symptoms Table.

Click here

4.	REPAIR OR REPLACE

5.	CONFIRMATION TEST

END

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lighting System(for Gasoline Model): Ambient Light Switch Circuit
DESCRIPTION The main body ECU (multiplex network body ECU) detects the condition of the mood switch on the roof console box sub-assembly using this circuit. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Before replacing the main body ECU (multiplex network body ECU), refer to Registration. Click he ...

Toyota Avalon (XX50) 2019-2022 Owners Manual