Skid Control ECU Communication Stop Mode

NETWORKING: CAN COMMUNICATION SYSTEM: Skid Control ECU Communication Stop Mode
- Skid Control ECU Communication Stop Mode

DESCRIPTION





HINT
"ABS/VSC/TRAC" refers to the circuit that includes the skid control 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 operating.
* 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.

HINT
Operating the engine switch, any switches, or any doors triggers related ECU and sensor communication with the CAN. This communication will cause the resistance value to change.

PROCEDURE

1. CHECK DTC OUTPUT

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Chassis / ABS/VSC/TRAC / DTC.

(e) Check for DTCs.

OK:

DTC C1241 is not output.

NG -- GO TO DTC CHART C1241
OK -- Continue to next step.

2. CHECK FOR OPEN IN CAN BUS WIRE (SKID CONTROL ECU BRANCH WIRE)

(a) Turn the engine switch off.

(b) Disconnect the brake actuator assembly (skid control ECU) connector (A62).





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

Standard Resistance:





NG -- REPAIR OR REPLACE SKID CONTROL ECU BRANCH WIRE OR CONNECTOR (CANH, CANL)

OK -- REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)