Dtc U0100 Lost Communication With Ecm / Pcm A

Steering. Land Cruiser. Urj200, 202 Grj200 Vdj200
Power Assist Systems. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

INSPECTION PROCEDURE

CHECK FOR DTC (CAN COMMUNICATION SYSTEM)

DTC U0100 Lost Communication with ECM / PCM "A"

DTC U0126 Lost Communication with Steering Angle Sensor Module

DTC U0129 Lost Communication with Brake System Control Module

DTC U0130 Lost Communication with Steering Effort Control Module


DESCRIPTION

The power steering ECU receives signals from the ECM, steering angle sensor, skid control ECU and steering control ECU via the CAN communication system.

DTC Code
DTC Detection Condition
Trouble Area
U0100
The engine speed signal is lost.
  1. ECM
  2. CAN communication system
  3. Power steering ECU assembly
U0126
The steering angle signal is lost.
  1. Steering angle sensor
  2. CAN communication system
  3. Power steering ECU assembly
U0129
The vehicle speed signal is lost.
  1. Skid control ECU
  2. CAN communication system
  3. Power steering ECU assembly
U0130
The VGRS relative angle signal is lost.
  1. Steering control ECU
  2. CAN communication system
  3. Power steering ECU assembly

INSPECTION PROCEDURE

1.CHECK FOR DTC (CAN COMMUNICATION SYSTEM)

  1. Clear the DTCs (Click here).

  1. Check for DTCs (Click here).

    Result
    Result
    		Proceed to
    DTC is not output.
    		A
    DTC is output.
    		for LHD
    		B
    for RHD
    		C



B
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (Click here)

C
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (Click here)
A

USE SIMULATION METHOD TO CHECK (Click here)