Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: ECU Malfunction (B1370)

DESCRIPTION

This DTC is stored when the windshield wiper motor assembly detects an internal malfunction.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Memory

DTC Output from

B1370

ECU Malfunction

A malfunction is detected for during the windshield wiper motor assembly self-check.

Windshield wiper motor assembly

○

Windshield wiper motor assembly

PROCEDURE

CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Enter the following menus: Body Electrical / Wiper / Trouble Codes.

(e) Clear the DTCs.

Body Electrical > Wiper > Clear DTCs

2.	CHECK FOR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Turn the Techstream on.

(e) Enter the following menus: Body Electrical / Wiper / Trouble Codes.

(f) Check for DTCs.

Body Electrical > Wiper > Trouble Codes

Result	Proceed to
DTC B1370 is not output	A
DTC B1370 is output	B

USE SIMULATION METHOD TO CHECK

REPLACE WINDSHIELD WIPER MOTOR ASSEMBLY

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lighting System(for Hv Model Without Cornering Light): Terminals Of Ecu
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Toyota Avalon (XX50) 2019-2022 Owners Manual