CAN COMMUNICATION SYSTEM > Gateway ECU Communication Stop Mode

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DESCRIPTION


Detection Item
Symptom
Trouble Area
GATEWAY ECU COMMUNICATION STOP MODE
  1. "Body/Gateway" is not displayed on the "Communication Bus Check" of the intelligent tester
  2. Applies to "GATEWAY ECU COMMUNICATION STOP MODE" in the "DTC COMBINATION TABLE"
  1. Power source or inside the gateway ECU
  2. Gateway ECU sub bus line or connector

WIRING DIAGRAM


C112559E01


INSPECTION PROCEDURE

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

  1. Turn the engine switch off.

  1. Disconnect the gateway ECU (L66).



    G031979E05

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Value
    L66-17 (CA1H) - L66-18 (CA1L)
    		Engine switch off
    		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)


    C112551E01

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Value
    L66-24 (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
    L66-2 (ACC) - Body ground
    		Engine switch on (ACC)
    		10 to 14 V
    L66-1 (IG) - Body ground
    		Engine switch on (IG)
    		10 to 14 V



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE GATEWAY ECU