TC and CG Terminal Circuit

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL 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 blinking the ABS warning light and VSC OFF indicator light.

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:
- When replacing the VSC actuator assembly, perform zero point calibration Programming and Relearning.
- for 2UZ-FE:
If the ECM has been replaced, it is necessary to register the Vehicle Identification Number (VIN) Programming and Relearning.
- for 3UR-FE:
If the ECM has been replaced, it is necessary to register the Vehicle Identification Number (VIN) Programming and Relearning.
- for 3UR-FBE:
If the ECM has been replaced, it is necessary to register the Vehicle Identification Number (VIN) Programming and Relearning.

PROCEDURE

1. INSPECT DLC3 (TC AND CG TERMINAL)

(a) Turn the ignition switch to ON.
(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

NG -- CHECK HARNESS AND CONNECTOR (DLC3 - ECM)
OK -- Continue to next step.

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

Result

B -- GO TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (DLC3 - ECM)

(a) Disconnect the A27 ECU connector.
(b) 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 (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. INSPECT ECM (DLC3 INPUT)

(a) Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.
SST: 09843-18040
(b) Check if the ABS warning light is blinking.

Result

D -- REPLACE ECM
C -- REPLACE ECM
B -- REPLACE ECM
A -- REPLACE VSC ACTUATOR ASSEMBLY