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 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.
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 OPEN IN CAN BUS WIRE (SKID CONTROL ECU BRANCH LINE)
(a) Turn the engine switch off.
(b) Disconnect the skid control ECU connector (J77).

NG -- REPAIR OR REPLACE SKID CONTROL ECU BRANCH WIRE OR CONNECTOR (CAN-H, CAN-L)
OK -- Continue to next step.
2. CHECK WIRE HARNESS (IG1, GND1)
(a) Disconnect the skid control ECU connectors (J78) and (A35).

(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE SKID CONTROL ECU ASSEMBLY