Can Communication System Distance Control Ecu Communication Stop Mode

Communication System. Lexus Gs430, Gs300. Uzs190 Grs190
Can Communication. Lexus Gs430, Gs300. Uzs190 Grs190

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK CAN BUS LINE FOR DISCONNECTION (DISTANCE CONTROL ECU SUB BUS LINE)

CHECK WIRE HARNESS (B, GND, SGND)

CAN COMMUNICATION SYSTEM - Distance Control ECU Communication Stop Mode


DESCRIPTION


Detection Item
Symptom
Trouble Area
DISTANCE CONTROL ECU COMMUNICATION STOP MODE
  1. "Cruise Control" is not displayed on the "Communication Bus Check" screen of the intelligent tester.
  2. Applies to "DISTANCE CONTROL ECU COMMUNICATION STOP MODE" in the "DTC COMBINATION TABLE"
  1. Power source or inside the distance control ECU
  2. Distance control ECU sub bus line or connector

WIRING DIAGRAM


Lexus Gs430, Gs300. Uzs190 Grs190.Can Communication.Can Communication System.Can Communication System Distance Control Ecu Communication Stop Mode


Lexus Gs430, Gs300. Uzs190 Grs190.Can Communication.Can Communication System.Can Communication System Distance Control Ecu Communication Stop Mode


INSPECTION PROCEDURE

1.CHECK CAN BUS LINE FOR DISCONNECTION (DISTANCE CONTROL ECU SUB BUS LINE)

  1. Turn the engine switch off.

  1. Disconnect the distance control ECU (L13).



    Lexus Gs430, Gs300. Uzs190 Grs190.Can Communication.Can Communication System.Can Communication System Distance Control Ecu Communication Stop Mode

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Value
    L13-8 (CANH) - L13-9 (CANL)
    		Engine switch off
    		54 to 69 Ω


NG
REPAIR OR REPLACE DISTANCE CONTROL ECU SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L)
OK


2.CHECK WIRE HARNESS (B, GND, SGND)


    Lexus Gs430, Gs300. Uzs190 Grs190.Can Communication.Can Communication System.Can Communication System Distance Control Ecu Communication Stop Mode

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Value
    L13-10 (SGND) - Body ground
    		Always
    		Below 1 Ω
    L13-12 (GND) - Body ground
    		Always
    		Below 1 Ω

  1. Measure the voltage according to the value(s) in the table below.

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Value
    L13-1 (B) - Body ground
    		Engine switch on (IG)
    		10 to 14 V


NG
REPLACE DISTANCE CONTROL ECU
OK

REPAIR OR REPLACE HARNESS OR CONNECTOR