CRUISE CONTROL SYSTEM > TC and CG Terminal Circuit

for Preparation Click here


DESCRIPTION

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


E144340E23


INSPECTION PROCEDURE

1.CHECK HARNESS AND CONNECTOR (TERMINAL TC of DLC3 - ECM)
  1. Disconnect the ECM connector.

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

    Standard Resistance (2AZ-FE):
    Tester Connection
    Condition
    Specified Condition
    A50-27 (TC) - E11-13 (TC)
    Always
    Below 1 Ω

    Standard Resistance (2ZR-FE):
    Tester Connection
    Condition
    Specified Condition
    A50-41 (TC) - E11-13 (TC)
    Always
    Below 1 Ω
  1. Reconnect the ECM connector.



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


2.CHECK HARNESS AND CONNECTOR (TERMINAL CG of DLC3 - BODY GROUND)
C126742E54
  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    Condition
    Specified condition
    E11-4 (CG) - Body ground
    Always
    Below 1 Ω


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


3.CHECK HARNESS AND CONNECTOR (TERMINAL TC of DLC3 - BODY GROUND)
C126742E55
  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    E11-13 (TC) - Body ground
    Always
    10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU
OK

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