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 the DTC by blinking the ABS warning light.

WIRING DIAGRAM





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

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM
(a) Check if the CAN communication system DTC is output Diagnosis System.
Result:






B -- INSPECT CAN COMMUNICATION SYSTEM
A -- Continue to next step.
2. INSPECT DLC3




(a) Turn the power switch on (IG).
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:






OK -- CHECK HV CONTROL ECU (TC of DLC3 INPUT)
NG -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (TC of DLC3 - HV CONTROL ECU)




(a) Turn the power switch off.
(b) Disconnect the HV control ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND)




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






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. CHECK HV CONTROL ECU (TC of DLC3 INPUT)




(a) Turn the power switch off.
(b) Reconnect the HV control ECU connector.
(c) Using the SST, connect terminals TC and CG of the DLC3.
(d) Turn the power switch on (IG).
(e) Check that the check engine warning light is blinking.
Result:





HINT: If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part Problem Symptoms Table.

B -- REPAIR OR REPLACE WIRE HARNESS OR HV CONTROL ECU (TC of HV CONTROL ECU CIRCUIT)
A -- REPLACE SKID CONTROL ECU