Toyota Camry (XV70): ECU Malfunction (B1003)

Toyota Camry Repair Manual XV70 (2018-2024) / Power Source, Network / Networking / Can Communication System / ECU Malfunction (B1003)

DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
B1003	ECU Malfunction	A malfunction in the non-volatile storage of the central gateway ECU (network gateway ECU) is detected.	Central gateway ECU (network gateway ECU)	-

PROCEDURE

1.	RECONFIRM DTC OUTPUT

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

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

Body Electrical > Central Gateway > Trouble Codes

Result	Proceed to
DTC B1003 is not output from the central gateway ECU (network gateway ECU)	A
DTC B1003 is output from the central gateway ECU (network gateway ECU)	B

USE SIMULATION METHOD TO CHECK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

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Components

COMPONENTS ILLUSTRATION *A for Fold Down Seat Type - - *1 REAR SEAT CUSHION ASSEMBLY *2 REAR SEAT CUSHION LOCK HOOK *3 REAR SIDE SEATBACK ASSEMBLY LH *4 REAR SIDE SEATBACK ASSEMBLY RH *5 REAR CENTER SEAT OUTER BELT ASSEMBLY *6

Control Module Internal Temperature Sensor "A" Circuit Circuit Voltage Out of Range (C10001C,C10051C,C100A62,C1A9346,C1A9445,C1A9447,C1A9487-C1A961C)

DESCRIPTION When an internal malfunction is detected in the forward recognition camera, these DTCs are stored. DTC No. Detection Item DTC Detection Condition Trouble Area C10001C Control Module Internal Temperature Sensor "A" Circuit Circuit Voltage Out of Range A forw

Toyota Camry (XV70): ECU Malfunction (B1003)

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Control Module Internal Temperature Sensor "A" Circuit Circuit Voltage Out of Range (C10001C,C10051C,C100A62,C1A9346,C1A9445,C1A9447,C1A9487-C1A961C)