Dtc U0100 Lost Communication With Ecm / Pcm A


DESCRIPTION

INSPECTION PROCEDURE

CHECK DTC

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 U0142 Lost Communication with Body Control Module "B"


DESCRIPTION

These DTCs are stored if there is a malfunction in the CAN communication system connected to the blind spot monitor sensor.
HINT:
If CAN communication system DTCs are stored, they may also be stored for other systems.

DTC Code
DTC Detection Condition
Trouble Area
U0100
Lost communication with ECM
CAN communication system
U0126
Lost communication with spiral cable sub-assembly
U0129
Lost communication with skid control ECU
U0142
Lost communication with main body ECU (multiplex network body ECU)

INSPECTION PROCEDURE

NOTICE:
When checking for DTCs, make sure that the blind spot monitor main switch assembly (multi-function switch) is on.
1.CHECK DTC
  1. Clear the DTCs (LandCruiser RM000004RS201SX.html).

  1. Check for DTCs (LandCruiser RM000004RS201SX.html).

    Result
    Result
    Proceed to
    OK (for LHD with Entry and Start System)
    A
    OK (for LHD without Entry and Start System)
    B
    OK (for RHD with Entry and Start System)
    C
    OK (for RHD without Entry and Start System)
    D
    NG
    E

HINT:
  1. If CAN communication system DTCs are stored, they may also be stored for other systems.
  2. If the CAN communication system has been inspected and repaired, the DTCs will not be output when rechecking for DTCs.
  3. If these DTCs are output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs (LandCruiser RM000004RS201SX.html).


B
GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0BYX.html)

C
GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0BZX.html)

D
GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0C0X.html)

E
USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)
A

GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0C5X.html)