Gateway ECU Communication Stop Mode

DESCRIPTION

Detection Item	Symptom	Suspected 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 sub bus line or connector Gateway ECU

WIRING DIAGRAM

INSPECTION PROCEDURE

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

1. Turn the ignition switch off.

2. Disconnect the gateway ECU connector (G1).

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

   Standard Resistance:

   Tester Connection	Condition	Specified Value
   G1-17 (CA1H) - G1-18 (CA1L)	Disconnect the negative auxiliary battery cable	54 to 69 Ω

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

OK

2. CHECK WIRE HARNESS (ACC, IG, GND)

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

   Standard Resistance:

   Tester Connection	Condition	Specified Value
   G1-24 (GND) - Body ground	Always	Below 1 Ω

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

   Standard Voltage:

   Tester Connection	Condition	Specified Value
   G1-2 (ACC) - Body ground	Ignition switch ACC	10 to 14 V
   G1-1 (IG) - Body ground	Ignition switch on	10 to 14 V

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK
REPLACE GATEWAY ECU