Dtc U0100 Lost Communication With Ecm / Pcm A

Vehicle Interior. Yaris. Ncp93, 131
Meter Gauge Display. Yaris. Ncp93, 131

DESCRIPTION

INSPECTION PROCEDURE

CONFIRM DTC OUTPUT

DTC U0100 Lost Communication with ECM / PCM "A"

DTC U0129 Lost Communication with Brake System Control Module

DTC U0131 Lost Communication with Power Steering Control Module

DTC U0151 Lost Communication with Airbag ECU


DESCRIPTION

The combination meter communicates with the ECM, skid control ECU, power steering ECU, main body ECU and center airbag sensor via the CAN communication system.

DTC No.
DTC Detection Condition
Trouble Area
U0100
ECM communication error
  1. CAN communication system
  2. ECM
U0129
Skid control ECU communication error
  1. CAN communication system
  2. Brake actuator assembly (Skid control ECU)
U0131
Power steering ECU communication error
  1. CAN communication system
  2. Power steering ECU
U0151
Center airbag sensor communication error
  1. CAN communication system
  2. Center airbag sensor assembly

INSPECTION PROCEDURE

1.CONFIRM DTC OUTPUT

  1. Check DTC (YARIS_NCP93 RM000001Q7700YX.html).

    Result
    		Proceed to
    CAN communication DTC is not output
    		A
    CAN communication DTC is output (for Hatchback except Separate Type Yaw Rate Sensor)
    		B
    CAN communication DTC is output (for Hatchback with Separate Type Yaw Rate Sensor)
    		C



B
GO TO CAN COMMUNICATION SYSTEM (YARIS_NCP93 RM000001RSO05UX.html)

C
GO TO CAN COMMUNICATION SYSTEM (YARIS_NCP93 RM000001RSW02PX.html)
A

USE SIMULATION METHOD TO CHECK (YARIS_NCP93 RM000001RSW02LX.html)