Toyota Venza manuals

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


A

GO TO CAN COMMUNICATION SYSTEM


B

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:

Unlock Warning Switch Circuit
DESCRIPTION The key unlock warning switch assembly turns on when the ignition key is inserted into the ignition key cylinder and turns off when the ignition key is removed. The main body ECU (driver side junction block assembly) operates the key confinemen ...

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT COOLING FAN OPERATION AT LOW TEMPERATURES (Below 83°C (181°F)) (a) Turn the ignition switch to ON. (b) Check that the cooling fans stop. If not, check the cooling fan relays and engine coolant temperature senso ...

Speaker Circuit
DESCRIPTION for 6 Speakers: If there is a short in a speaker circuit, the navigation receiver assembly detects it and stops output to the speakers. Thus sound cannot be heard from the speakers even if there is no malfunction in the navigation receiver a ...

© 2016-2025 Copyright www.tovenza.com

0.1179