Toyota Venza: Lost Communication with ECM (U0101,U0073,U0126,U0129,U0142,U0182,U1000)

Toyota Venza Service Manual / Lighting (ext) / Lighting System / Lost Communication with ECM (U0101,U0073,U0126,U0129,U0142,U0182,U1000)

DESCRIPTION

The DTCs are stored when the CAN communication system is malfunctioning.

DTC No.	DTC Detection Condition	Trouble Area
U0101	Lost communication with ECM	CAN communication system
U0073	Control module communication bus off	CAN communication system
U0126	Lost communication with steering angle sensor	CAN communication system
U0129	Lost communication with skid control ECU	CAN communication system
U0142	Lost communication with main body ECU (driver side junction block assembly)	CAN communication system
U0182	Lost communication with AFS ECU (headlight swivel ECU assembly)	CAN communication system
U1000	Can communication failure (message registry)	CAN communication system

PROCEDURE

1.	CHECK FOR DTC

(a) Clear the DTCs (See page ).

(b) Check for DTCs (See page ).

OK:

DTCs are not output.

USE SIMULATION METHOD TO CHECK

GO TO CAN COMMUNICATION SYSTEM

Light Sensor Circuit Malfunction (B1244)

DESCRIPTION The automatic light control sensor detects ambient light, converts it into an electrical signal, and outputs it to the main body ECU (driver side junction block assembly). The main bo ...

Automatic High Beam Mirror (B124A)

DESCRIPTION The DTC is stored when the main body ECU (driver side junction block assembly) detects malfunctions in the inner rear view mirror assembly. DTC No. DTC Detection ...

Other materials about Toyota Venza:

Combination Meter
Components COMPONENTS ILLUSTRATION Disassembly DISASSEMBLY PROCEDURE 1. REMOVE COMBINATION METER GLASS (a) Disengage the 9 claws to remove the combination meter glass. Removal REMOVAL ...

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Meter / Gauge System DTC Code Detection Item Trouble Area See page B1500 Fuel Sender Open Detected 1. Harness or connector 2. Combination mete ...

Driver Side Seat Belt Warning Light does not Operate
DESCRIPTION When the ignition switch is ON, the center airbag sensor assembly transmits front seat inner belt status signals to the combination meter assembly through CAN. If the driver seat belt is not fastened, the combination meter assembly blinks the ...