DESCRIPTION Under normal operation, the windshield wiper motor assembly receives operation signals from the windshield wiper switch assembly via LIN communication. The windshield wiper motor assembly and windshield wiper switch assembly are also connected via direct line in order to operate the front wipers in HI in an emergency. If the operation signals sent via LIN communication and direct line do not match, this DTC is stored.
WIRING DIAGRAM  CAUTION / NOTICE / HINT NOTICE: Before replacing the main body ECU (multiplex network body ECU), refer to Registration. Click here PROCEDURE
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Wiper / Trouble Codes. (e) Clear the DTCs. Body Electrical > Wiper > Clear DTCs
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Move the front wiper switch to the HI position. (d) Wait 10 seconds or more. (e) Turn the Techstream on. (f) Enter the following menus: Body Electrical / Wiper / Trouble Codes. (g) Check for DTCs. Body Electrical > Wiper > Trouble Codes
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Wiper / Data List. (e) Read the Data List according to the display on the Techstream. Body Electrical > Wiper > Data List
OK: The Techstream display is normal.
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Chassis / Steering Angle Sensor / Data List. (e) Read the Data List according to the display on the Techstream. Chassis > Steering Angle Sensor > Data List
OK: The Techstream display is normal.
(a) Disconnect the G48 steering sensor connector. (b) Disconnect the A26 windshield wiper motor assembly connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Remove the steering sensor. Click here (b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Motor Generator Control System: DC/DC Converter Temperature Sensor "A" Circuit Voltage Out of Range (P0C381C)
DTC SUMMARY MALFUNCTION DESCRIPTION These DTCs indicate that the boost converter temperature sensor (upper) value is abnormal. The cause of this malfunction may be one of the following: Internal inverter malfunction Inverter with converter assembly internal circuit malfunction Hybrid cooling system ...
