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

DIAGNOSTIC TROUBLE CODE CHART Intuitive Parking Assist System DTC Code Detection Item See page C1AE6 Rear Left Sensor Malfunction ...

Rear Right Center Sensor Malfunction (C1AE8)

DESCRIPTION The No. 1 ultrasonic sensor (rear center sensor RH) is installed on the rear bumper. The ECU detects obstacles based on signals received from the No. 1 ultrasonic sensor (rear center ...

Other materials:

Removal
REMOVAL PROCEDURE 1. REMOVE NO. 2 ENGINE UNDER COVER SUB-ASSEMBLY (w/ Off Road Package) 2. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY 3. REMOVE FAN AND GENERATOR V BELT 4. DRAIN POWER STEERING FLUID 5. REMOVE FRONT FENDER APRON UPPER SEAL RH 6. DISCONNECT NO. 1 OIL RESERVOIR TO PUMP ...

Transmitter ID1 Operation Stop (C2111/11-C2114/14)
DESCRIPTION The tire pressure warning valve and transmitters that are installed in the tire and wheel assemblies measure the tire pressure of each wheel. The measured values are transmitted to the tire pressure warning ECU and receiver in the vehicle as radio waves. The ECU compares the measu ...

Crawl Indicator Light Remains ON
DESCRIPTION When CRAWL starts after operating the CRAWL switch (drive monitor switch), the CRAWL indicator light turns on. While CRAWL is in the process of stopping, the CRAWL indicator light begins blinking. When CRAWL totally stops, the CRAWL indicator light turns off. WIRING DIAGRAM CA ...