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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, the cruise main indicator light will blink.

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


E162406E08


INSPECTION PROCEDURE

1.CHECK HARNESS AND CONNECTOR (TERMINAL TC of DLC3 - POWER MANAGEMENT CONTROL ECU)
E187051E03

  1. Disconnect the power management control ECU connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L5-11 (TC) - L61-13 (TC)
    		Always
    		Below 1 Ω

    Text in Illustration 
    *1
    		DLC3
    *2
    		Front view of wire harness connector
    (to Power Management Control ECU)

  1. Connect the power management control ECU connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (DLC3 - POWER MANAGEMENT CONTROL ECU)
OK


2.CHECK HARNESS AND CONNECTOR (TERMINAL CG of DLC3 - BODY GROUND)


    C210786E03

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L61-4 (CG) - Body ground
    		Always
    		Below 1 Ω

    Text in Illustration 
    *1
    		DLC3



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


3.CHECK HARNESS AND CONNECTOR (TERMINAL TC of DLC3 - BODY GROUND)


    C210786E02

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L61-13 (TC) - Body ground
    		Always
    		10 kΩ or higher

    Text in Illustration 
    *1
    		DLC3



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)