HOW TO PROCEED WITH TROUBLESHOOTING

Confirm problem symptoms.

Check for DTCs (Click here).

HINT:

The skid control ECU sends the AWD indicator signals (AWD warning) to the gateway ECU via the CAN communication, and the gateway ECU sends the signals to the combination meter assembly (meter CPU) via multiplex communication system (BEAN Bus).

Result:

Result	Proceed to
DTC is not output	A
DTC is output	B

Check for DTCs (Click here).

HINT:

The skid control ECU of this system is connected to the CAN communication system.

Therefore before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.

Result:

Result	Proceed to
DTC is not output	A
DTC is output	B

Check for DTCs (Click here).

1. Record the DTCs.

Clear the DTCs (Click here).

Recheck for DTCs.

1. Simulate the malfunction and check if the DTCs are output again (Click here).
   

   Result:

   Result	Proceed to
   DTC is not output	A
   DTC is output	B

Check for DTCs (Click here).

1. Record the DTCs.

Clear the DTCs (Click here).

Recheck for DTCs.

1. Simulate the malfunction and check if the DTCs are output again (Click here).
   

   Result:

   Result	Proceed to
   DTC is output	A
   DTC is not output	B
   DTCs are not output, and the malfunction cannot be simulated or checked	C