TC and CG Terminal Circuit

BRAKE CONTROL: ANTI-LOCK BRAKE 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 the blinking pattern of the ABS warning light.

WIRING DIAGRAM

HINT: When warning lights continue to blink, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in one or more ECUs is suspected.

INSPECTION PROCEDURE

PROCEDURE

1. INSPECT DLC3 TERMINAL VOLTAGE (TC TERMINAL VOLTAGE)

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

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

(a) Disconnect the ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (TC TERMINAL CIRCUIT)
OK -- Continue to next step.
3. CHECK CAN COMMUNICATION SYSTEM
(a) Check if the CAN communication system DTC is output .
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
ABS (Antilock Brake System).

B -- REPAIR CIRCUIT INDICATED BY OUTPUT CODE
A -- REPLACE BRAKE ACTUATOR ASSEMBLY
4. CHECK HARNESS AND CONNECTOR (ECM TO DLC3)

(a) Disconnect the ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Resistance:

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

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

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

(a) Using the SST, connect the terminals TC and CG of the DLC3.
SST: 09843-18040
(b) Check that the engine warning light is blinking.
Result:

B -- REPLACE ECM
A -- Continue to next step.
7. CHECK CAN COMMUNICATION SYSTEM
(a) Check if the CAN communication system DTC is output .
Result: