Dtc C1A02 Vehicle Information Not Obtained

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Pre-Crash Safety. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

INSPECTION PROCEDURE

CHECK DTC OUTPUT (PRE-CRASH SAFETY SYSTEM)

DTC C1A02 Vehicle Information Not Obtained


DESCRIPTION

When a new driving support ECU assembly is installed, it receives vehicle specification information (destination, steering wheel position, etc.) from the main body ECU (multiplex network body ECU) and memorizes the information.
DTC C1A02 is stored when the driving support ECU assembly receives the vehicle specification information from the main body ECU (multiplex network body ECU) but cannot record it.

DTC No.
DTC Detection Condition
Trouble Area
C1A02
Inconsistent vehicle specification information between the main body ECU (multiplex network body ECU) and driving support ECU assembly continues for 1 second or more while the vehicle is being driven at a speed of 50 km/h (31 mph) or more.
Driving support ECU assembly

INSPECTION PROCEDURE

NOTICE:
  1. When replacing the driving support ECU assembly, always replace it with a new one. If a driving support ECU assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
  2. First check the CAN communication system by following How to Proceed with Troubleshooting. After checking that there are no malfunctions in the CAN communication system, proceed with troubleshooting
    1. for LHD: Click here
    2. for RHD: Click here.
1.CHECK DTC OUTPUT (PRE-CRASH SAFETY SYSTEM)
  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

  1. Enter the following menus: Body Electrical / Pre-Crash 2 / Trouble Codes.

  1. Clear the DTCs (Click here).

  1. Drive the vehicle at a speed of 50 km/h (31 mph) or more.

    HINT:
    If the detection conditions are not met, the system cannot detect the malfunction.
  1. Check for DTCs (Click here).

    Result
    Result
    Proceed to
    DTC C1A02 is output
    A
    DTC C1A02 is not output
    B



B
USE SIMULATION METHOD TO CHECK (SYMPTOM SIMULATION) (Click here)
A

REPLACE DRIVING SUPPORT ECU ASSEMBLY (Click here)