TC and CG Terminal Circuit

BRAKE CONTROL: 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 2-digit DTCs by blinking the ABS and VSC TRAC warning lights.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. INSPECT DLC3 (TC TERMINAL VOLTAGE)

(a) Turn the ignition switch to the ON position.
(b) Measure the voltage.
Standard:

(c) Turn the ignition switch to OFF.
NG -- CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)
OK -- Continue to next step.
2. CHECK CAN COMMUNICATION SYSTEM
(a) Check whether CAN system DTCs are recorded.

B -- REPAIR CIRCUITS INDICATED BY OUTPUT DTCS
A -- REPLACE MASTER CYLINDER SOLENOID
3. CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)

(a) Measure the resistance.
Standard:

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

(a) Disconnect the ECM connector.
(b) Measure the resistance.
Standard (1GR-FE) :

Standard (2TR-FE):

(d) Reconnect the ECM connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. CHECK HARNESS AND CONNECTOR (ECM - SKID CONTROL ECU)

(a) Disconnect the skid control ECU connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance.
Standard:

(d) Reconnect the ECM connector.
(e) Reconnect the skid control ECU connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
6. CHECK ECM (DLC3 (TC) INPUT)

(a) Connect terminals TC and CG of DLC3.
(b) Turn the ignition switch to the ON position.
(c) Check if the ECM warning light is blinking.
OK:
ECM warning light is blinking.
(d) Turn the ignition switch to OFF.
(e) Disconnect the TC and CG terminals of DLC3.
NG -- REPLACE ECM
OK -- REPLACE MASTER CYLINDER SOLENOID