CRUISE CONTROL SYSTEM > TC and CG Terminal Circuit

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DESCRIPTION

Connecting terminals TC and CG of the DLC3 causes the system to enter self-diagnostic mode. If a malfunction is present, DTCs will be output.

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


WIRING DIAGRAM


E106785E04


INSPECTION PROCEDURE

1.CHECK WIRE HARNESS (TC OF DLC3 - ECM)


    E109054E04

  1. Disconnect the A7 ECM connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A7-3 (TC) - L16-13 (TC)
    		Always
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR (DLC3 - ECM)
OK


2.CHECK WIRE HARNESS (CG OF DLC3 - BODY GROUND)
E107088E07

  1. Measure the resistance of the connector.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L16-4 (CG) - Body ground
    		Always
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR (DLC3 - BODY GROUND)
OK


3.CHECK WIRE HARNESS (TC OF DLC3 - BODY GROUND)
E107088E08

  1. Measure the resistance of the connector.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L16-13 (TC) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE WIRE HARNESS AND EACH ECU
OK

REPLACE ECM