TC and CG Terminal Circuit

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: TC and CG Terminal Circuit

TC and CG Terminal Circuit

DESCRIPTION

DTC output mode is set by connecting terminals TC and CG of the DLC3.
The DTCs are displayed by blinking the ABS and VSC TRAC warning lights.

WIRING DIAGRAM

HINT: When each warning light stays blinking, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in each ECU is suspected.

INSPECTION PROCEDURE
NOTE: When replacing the master cylinder solenoid, perform zero point calibration Calibration.

PROCEDURE

1. INSPECT DLC3 (DLC3 (TC) - DLC3 (CG))

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

NG -- CHECK HARNESS AND CONNECTOR (ECM - DLC3 (TC))
OK -- Continue to next step.
2. CHECK DTC (FOR CAN COMMUNICATION SYSTEM)
(a) Check for CAN communication system DTC Diagnosis System.
Result:

B -- REPAIR CAN COMMUNICATION SYSTEM
A -- REPLACE MASTER CYLINDER SOLENOID
3. CHECK HARNESS AND CONNECTOR (ECM - DLC3 (TC))

(a) Turn the ignition switch off.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:

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

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

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (CG CIRCUIT)
OK -- Continue to next step.
5. CHECK ECM (DLC3 (TC) INPUT)

(a) Using SST, connect terminals TC and CG of the DLC3.
(b) Check that the engine warning light is blinking.
Result:

B -- REPAIR OR REPLACE WIRE HARNESS OR ECM (TC AND/OR ECM CIRCUIT)
A -- Continue to next step.
6. CHECK DTC (FOR CAN COMMUNICATION SYSTEM)
(a) Check for CAN communication system DTC Diagnosis System.
Result:

B -- REPAIR CAN COMMUNICATION SYSTEM
A -- REPLACE MASTER CYLINDER SOLENOID