AIR SUSPENSION SYSTEM, Diagnostic DTC:C175019

DTC Code DTC Name
C175019 Compressor Motor Circuit Circuit Current Above Threshold

DESCRIPTION

The suspension control relay (AIRSUS) turns ON according to signals from the suspension control ECU. In this case, the battery voltage is input to the compressor motor (NO. 1 height control compressor) via the suspension control relay (AIRSUS), and the compressor motor (NO. 1 height control compressor) operates to make compressed air.

DTC NO. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory
C175019 Compressor Motor Circuit Circuit Current Above Threshold With the suspension control relay activated, a lock signal of the compressor motor (NO. 1 height control compressor) is detected for 4 seconds or more.

  • Wire harness or connector

  • NO. 1 height control compressor

  • Suspension control ECU

 Comes on Yes

WIRING DIAGRAM

B006E9YE03

CAUTION / NOTICE / HINT

Note


  • Before performing troubleshooting, inspect the connectors of related circuits.

  • After replacing the suspension control ECU with a new one, perform vehicle height offset calibration.

    Click here

PROCEDURE


  1. CHECK FOR DTCS


    1. Using the GTS, check if C175112 or C175114 is output in addition to C175019.

      Click here


      Chassis > Air suspension > Trouble Codes
      Result
      Result Proceed to
      DTCs other than C175019 are not output A
      C175112 output at the same time B
      C175114 output at the same time C

    B

    GO TO C175112 Click here

    C

    GO TO C175114 Click here

    A

  2. INSPECT HEIGHT CHANGE OPERATION


    1. Inspect height change operation.

      Click here

      Result
      Result Proceed to
      OK A
      NG B

    B

    INSPECT NO. 1 HEIGHT CONTROL COMPRESSOR Click here

    A

  3. CHECK FOR DTCS


    1. Clear the DTCs.

      Click here


      Chassis > Air suspension > Clear DTCs

    2. Turn the engine switch off.

    3. Check for DTCs.

      Click here


      Chassis > Air suspension > Trouble Codes
      Result
      Result Proceed to
      DTCs is not output A
      DTCs is output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE SUSPENSION CONTROL ECU Click here

  4. INSPECT NO. 1 HEIGHT CONTROL COMPRESSOR


    1. Inspect the NO. 1 height control compressor.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE SUSPENSION CONTROL ECU Click here

    NG

    REPLACE NO. 1 HEIGHT CONTROL COMPRESSOR Click here