Lexus IS250 IS220d GSE20 ALE20 - CAN COMMUNICATION

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK CAN BUS LINE FOR OPEN (CENTER AIRBAG SENSOR BRANCH LINE)

CHECK WIRE HARNESS (IG2, E1, E2)

2AD-FHV CAN COMMUNICATION SYSTEM (for RHD) - Center Airbag Sensor Communication Stop Mode

DESCRIPTION

Detection ItemSymptomTrouble Area
Center Airbag Sensor Communication Stop Mode
"SRS Airbag" is not displayed on the "Communication Bus Check" screen of the intelligent tester
Applies to "Center Airbag Sensor Communication Stop Mode" in the "DTC COMBINATION TABLE"
Power source circuit of the center airbag sensor
Center airbag sensor branch line or connector
Center airbag sensor
  • HINT:
  • "SRS Airbag" refers to the circuit that includes the center airbag sensor.

WIRING DIAGRAM

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

INSPECTION PROCEDURE

1.CHECK CAN BUS LINE FOR OPEN (CENTER AIRBAG SENSOR BRANCH LINE)
2Ad-Fhv Can Communication System (For Rhd) - Center Airbag Sensor Communication Stop Mode. CAN COMMUNICATION. Lexus IS250 IS220d GSE20 ALE20

Turn the engine switch off.

Disconnect the center airbag sensor connector (J47).

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

  • Standard resistance:
  • Tester ConnectionConditionSpecified Value
    J47-13 (CANH) - J47-22 (CANL)Engine switch off54 to 69 Ω
NG
REPAIR OR REPLACE CENTER AIRBAG SENSOR BRANCH LINE OR CONNECTOR (CANH, CANL)
OK
2.CHECK WIRE HARNESS (IG2, E1, E2)
2Ad-Fhv Can Communication System (For Rhd) - Center Airbag Sensor Communication Stop Mode. CAN COMMUNICATION. Lexus IS250 IS220d GSE20 ALE20

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

  • Standard resistance:
  • Tester ConnectionConditionSpecified Value
    J47-25 (E1) - Body groundAlwaysBelow 1 Ω
    J47-26 (E2) - Body groundAlwaysBelow 1 Ω

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

  • Standard voltage:
  • Tester ConnectionConditionSpecified Value
    J47-21 (IG2) - Body groundEngine switch on (IG)10 to 14 V
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE CENTER AIRBAG SENSOR ASSEMBLY