Toyota Venza: Lost Communication with ECM / PCM "A" (U0100-U0142,U0155)

Toyota Venza Service Manual / Park Assist / Monitoring / Intuitive Parking Assist System / Lost Communication with ECM / PCM "A" (U0100-U0142,U0155)

DESCRIPTION

These DTCs are stored when the clearance warning ECU assembly cannot receive and recognize several signals via the CAN communication system.

DTC No.	DTC Detection Condition	Trouble Area
U0100	Lost Communication with ECM / PCM "A"	CAN communication system
U0101	Lost Communication with TCM
U0142	Lost Communication with Body Control Module "B"
U0155	Lost Communication with Instrument Panel Cluster Control Module (Combination Meter)

HINT:

When 2 or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harnesses of each ECU.

PROCEDURE

1.	CHECK DTC OUTPUT

(a) Clear the DTCs (See page ).

(b) Check for DTCs (See page ).

Result	Proceed to
DTCs (CAN communication system DTC) are output	A
No DTCs are output	B

GO TO CAN COMMUNICATION SYSTEM

USE SIMULATION METHOD TO CHECK

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Intuitive Parking Assist System DTC Code Detection Item See page C1AE1 Front Left Sensor Malfunction ...

Front Sensor Communication Malfunction (C1AEC)

DESCRIPTION This DTC is stored when there is an open or short circuit in the communication line between the front sensors and the ECU, or when there is a malfunction in a front sensor. ...

Other materials about Toyota Venza:

Illumination Circuit
DESCRIPTION Power is supplied to the navigation receiver assembly and steering pad switch assembly illumination when the light control switch is in the tail or head position. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: The vehicle is equipp ...

Short in Front Pretensioner Squib RH Circuit (B1900/73-B1903/73)
DESCRIPTION The front pretensioner squib RH circuit consists of the center airbag sensor assembly and front seat outer belt assembly RH. The center airbag sensor assembly uses this circuit to deploy the seat belt pretensioner when deployment conditions a ...

Power Back Door cannot be Closed Using the Power Back Door Closer Switch
DESCRIPTION When the power back door cannot be closed using the power back door closer switch, either of the following may be malfunctioning: 1) power back door closer switch circuit or 2) power back door ECU (power back door motor unit). WIRING DIAGRAM ...