AIR SUSPENSION SYSTEM TS and CG Terminal Circuit

DESCRIPTION

Connect terminals 12 (TS) and 4 (CG) of the DLC3 with the engine switch off. When the engine switch is turned to the on (IG) position, test mode will start and then the DTCs will be output.

WIRING DIAGRAM

A001G0DE02
*a CAN Communication Line
*b Suspension Control ECU
*c Skid Control ECU

CAUTION / NOTICE / HINT

Note

When replacing the skid control ECU, perform initialization of linear solenoid valve calibration Click here.

PROCEDURE


  1. INSPECT DLC3 (TS VOLTAGE)

    A001BA3E80
    *1 Front view of DLC3:

    1. Measure the voltage according to the value in the table below.

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      L31-12 (TS) - L31-4 (CG) Engine switch on (IG) 10 to 14 V
      Result
      Result Proceed to
      NG A
      OK B

    B

    PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    A

  2. CHECK HARNESS AND CONNECTOR (DLC3 - SKID CONTROL ECU AND BODY GROUND)


    1. Disconnect the A21 skid control ECU connector.

      A001EL6E01
      *1 Front view of wire harness connector: (to Skid Control ECU)
      *2 Front view of DLC3:

    2. Measure the resistance according to the value in the table below.

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      L31-12 (TS) - A21-24 (TS) Always Below 1 Ω
      L31-12 (TS) or A21-24 (TS) - Body ground Always 10 kΩ or higher
      L31-4 (CG) - Body ground Always Below 1 Ω
      Result
      Result Proceed to
      NG A
      OK (for LHD) B
      OK (for RHD) C

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    B

    REPLACE SKID CONTROL ECU (for LHD) Click here

    C

    REPLACE SKID CONTROL ECU (for RHD) Click here