TC and CG Terminal Circuit

BRAKE CONTROL: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: TC and CG Terminal Circuit

TC and CG Terminal Circuit

DESCRIPTION

Connecting terminals TC and CG of the DLC3 causes the ECU to display DTCs by flashing the ABS warning light.

WIRING DIAGRAM





INSPECTION PROCEDURE
NOTE: When replacing the skid control ECU, perform initialization of linear solenoid valve and calibration Initialization.

PROCEDURE

1. CHECK DLC3 (TC VOLTAGE)




(a) Turn the power switch ON (READY).
(b) Measure the voltage of the DLC3 connector.
Standard voltage:





(c) Measure the resistance of the DLC3 connector.
Standard resistance:






NG -- CHECK WIRE HARNESS AND CONNECTORS (DLC3 - HV CONTROL ECU)
OK -- Continue to next step.

2. CHECK CAN COMMUNICATION SYSTEM
(a) Check if a CAN communication system DTC is output Diagnosis System.

Result





B -- REPAIR CIRCUIT INDICATED BY OUTPUT CODE
A -- REPLACE SKID CONTROL ECU
3. CHECK WIRE HARNESS AND CONNECTORS (DLC3 - HV CONTROL ECU)




(a) Disconnect the HV control ECU connector.
(b) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.

4. CHECK WIRE HARNESS (DLC3 - BODY GROUND)




(a) Measure the resistance of the DLC3 connector.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.

5. CHECK CAN COMMUNICATION SYSTEM
(a) Check if a CAN communication system DTC is output Diagnosis System.

Result





B -- REPAIR CIRCUIT INDICATED BY OUTPUT CODE
A -- REPLACE SKID CONTROL ECU