Dtc U0100/71 Lost Communication With Ecm/Pcm A


DESCRIPTION

INSPECTION PROCEDURE

CHECK DTC

DTC U0100/71 Lost Communication with ECM/PCM "A"

DTC U0122/71 Lost Communication with Vehicle Dynamics Control Module

DTC U0124/71 Lost Communication with Lateral Acceleration Sensor Module

DTC U0126/71 Lost Communication with Steering Angle Sensor Module


DESCRIPTION


DTC Code
DTC Detection Condition
Trouble Area
U0100/71
While driving at 19 mph (30 km/h), the ECM indicates a CAN communication stop for 3 seconds or more.
CAN communication system
U0122/71
The skid control ECU indicates a CAN communication stop for 3 seconds or more.
CAN communication system
U0124/71
The yaw rate and acceleration sensor indicates a CAN communication stop for 3 seconds or more.
CAN communication system
U0126/71
The steering angle sensor indicates a CAN communication stop for 3 seconds or more.
CAN communication system

INSPECTION PROCEDURE

1.CHECK DTC

  1. Clear the DTCs (LandCruiser RM000001N9I01KX.html).

  1. Perform a road test.

  1. Check for DTCs (LandCruiser RM000001N9I01KX.html).

    Result
    Result
    		Proceed to
    DTC is not output
    		A
    DTC is output (for LHD with Entry and Start System)
    		B
    DTC is output (for RHD with Entry and Start System)
    		C

    HINT:
    If a CAN communication malfunction DTC and a related sensor malfunction DTC are output at the same time, the CAN communication malfunction must be repaired before troubleshooting the sensor malfunction DTC.


B
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (LandCruiser RM000001RSO0C5X.html)

C
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (LandCruiser RM000001RSO0BZX.html)
A

USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)