Gateway ECU Communication Stop Mode

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Gateway ECU Communication Stop Mode
- Gateway ECU Communication Stop Mode

DESCRIPTION





HINT
"Gateway" refers to the circuit that includes the gateway ECU.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
* Turn the engine switch off before measuring the resistance of CAN bus main wires and CAN bus branch wires.
* After the engine switch is turned off, check that the key reminder warning system and light reminder warning system are not in operation.
* Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the engine switch, any other switches, or the doors. If any doors need to be opened in order to check connectors, open the doors and leave them open.

PROCEDURE

1. CHECK OPEN IN CAN NO. 1 BUS WIRE (GATEWAY ECU BRANCH WIRE)

(a) Turn the engine switch off.

(b) Disconnect gateway ECU connector E25.

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





Standard resistance:





NG -- REPAIR OR REPLACE CAN NO. 1 BUS BRANCH WIRE OR CONNECTOR (GATEWAY ECU)
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (BATT, IG1, IG2, GND)

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





Standard resistance:





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

Standard voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE GATEWAY ECU