Toyota Tacoma (2015-2018) Service Manual: Lost Communication with ECM / PCM "A" (U0100-U0142,U0155)

Toyota Tacoma (2015-2018) 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 ). ).

(b) Check for DTCs (See page Result ).

Result

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

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Rear Right Center Sensor Malfunction (C1AE8)

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System Diagram
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