Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Vehicle Proximity Notification System Warning Message Display Malfunction

DESCRIPTION

The combination meter assembly and vehicle approaching speaker controller are connected via direct line. If a malfunction occurs in the vehicle proximity notification system, the combination meter assembly receives a malfunction signal from the vehicle approaching speaker controller and outputs a warning.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

• When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
• The following troubleshooting procedure is based on the assumption that the vehicle proximity notification system is normal. Confirm that the vehicle proximity notification system is not malfunctioning before performing the following procedure.

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PROCEDURE

(a) Disconnect the G38 vehicle approaching speaker controller connector.

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

Standard Voltage:

NG

GO TO STEP 3

OK

(a) Turn the power switch off.

(b) Connect SST to terminal G38-10 (IND) and body ground.

SST: 09843-18040

(c) Turn the power switch on (IG).

(d) Check the combination meter assembly display.

A

REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER

B

REPLACE COMBINATION METER ASSEMBLY

(a) Disconnect the G16 combination meter assembly connector.

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

Standard Resistance:

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR