DTC U0100 Lost Communication with ECM / PCM "A"

DESCRIPTION

The combination meter communicates with the ECM via the CAN line.

DTC Code	DTC Detection Condition	Trouble Area
U0100	When the vehicle speed is 5 km/h (3 mph) or more and IG voltage is 10.5 V or more while no communication with the ECM continues for 3 seconds or more (no communication with the ECM or skid control ECU continues for 60 seconds or more).	CAN communication system

Dtc U0100 Lost Communication With Ecm / Pcm A. METER / GAUGE / DISPLAY. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

1.CHECK FOR DTC

Check for DTCs and note any codes that are output ().

Clear the DTCs ().

Recheck for DTCs ().

Result
Result	Proceed to
CAN communication system DTC is not output	A
CAN communication system (for LHD) DTC is output	B
CAN communication system (for RHD) DTC is output	C

If CAN communication system DTC U0100 and another DTC are output at the same time, perform troubleshooting for CAN communication system DTC U0100 first.

B

Go to CAN COMMUNICATION SYSTEM ()

C

Go to CAN COMMUNICATION SYSTEM ()

A

USE SIMULATION METHOD TO CHECK ()