Lexus IS250 IS220d GSE20 ALE20 - CAN COMMUNICATION

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

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

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

DESCRIPTION

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

WIRING DIAGRAM

2Ad-Fhv Can Communication System (For Rhd) - Gateway Ecu Communication Stop Mode. CAN COMMUNICATION. Lexus IS250 IS220d GSE20 ALE20

INSPECTION PROCEDURE

1.CHECK WIRE HARNESS (BATT, ACC, IG, GND)
2Ad-Fhv Can Communication System (For Rhd) - Gateway Ecu Communication Stop Mode. CAN COMMUNICATION. Lexus IS250 IS220d GSE20 ALE20

Turn the engine switch off.

Disconnect the gateway ECU connector (J76).

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

  • Standard resistance:
  • Tester ConnectionConditionSpecified Value
    J76-24 (GND) - Body ground AlwaysBelow 1 Ω

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

  • Standard voltage:
  • Tester ConnectionConditionSpecified Value
    J76-10 (BATT) - Body groundAlways10 to 14 V
    J76-2 (ACC) - Body groundEngine switch on (IG)10 to 14 V
    J76-1 (IG) - Body groundEngine switch on (IG)10 to 14 V
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE GATEWAY ECU