2Ad-Fhv Can Communication System (For Lhd) Gateway Ecu Communication Stop Mode

Communication System. Lexus Is250, Is220D. Gse20 Ale20
Can Communication. Lexus Is250, Is220D. Gse20 Ale20

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK WIRE HARNESS (BATT, ACC, IG, GND)

2AD-FHV CAN COMMUNICATION SYSTEM (for LHD) - Gateway ECU Communication Stop Mode


DESCRIPTION


Detection Item
Symptom
Trouble Area
Gateway ECU Communication Stop Mode
  1. "Body/Gateway" is not displayed on the "Communication Bus Check" screen of the intelligent tester
  2. Applies to "Gateway ECU Communication Stop Mode" in the "DTC COMBINATION TABLE"
  1. Power source circuit of the gateway ECU
  2. Gateway ECU
HINT:
"Body/Gateway" refers to the circuit that includes the gateway ECU.

WIRING DIAGRAM


Lexus Is250, Is220D. Gse20 Ale20.Can Communication.Can Communication System (For Lhd).2Ad-Fhv Can Communication System (For Lhd) Gateway Ecu Communication Stop Mode


INSPECTION PROCEDURE

1.CHECK WIRE HARNESS (BATT, ACC, IG, GND)


    Lexus Is250, Is220D. Gse20 Ale20.Can Communication.Can Communication System (For Lhd).2Ad-Fhv Can Communication System (For Lhd) Gateway Ecu Communication Stop Mode

  1. Turn the engine switch off.

  1. Disconnect the gateway ECU connector (J76).

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Value
    J76-24 (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
    J76-10 (BATT) - Body ground
    		Always
    		10 to 14 V
    J76-2 (ACC) - Body ground
    		Engine switch on (IG)
    		10 to 14 V
    J76-1 (IG) - Body ground
    		Engine switch on (IG)
    		10 to 14 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE GATEWAY ECU