Click here

AIR SUSPENSION SYSTEM, Diagnostic DTC:C171D14

Click here
Click here
DTC Code DTC Name
C171D14 Pressure Sensor No.2 Circuit Circuit Short to Ground or Open
Click here

DESCRIPTION

The height control way outputs the pneumatic with tube tank assembly pressure to the suspension control ECU.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory
C171D14 Pressure Sensor No.2 Circuit Circuit Short to Ground or Open The output voltage of the height control way is 0.3 V or less continuously for 1 second

  • Wire harness or connector

  • Height control way

  • Suspension control ECU

 Comes on Yes
Table 1. *a Height Control Way *b Suspension Control ECU
Click here

WIRING DIAGRAM

Click here

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

Click here

PROCEDURE


  1. Click here

    INSPECT HEIGHT CONTROL WAY


    1. Inspect the height control way.

      Click here

      Result
      Proceed to
      OK
      NG

  2. Click here

    CHECK HARNESS AND CONNECTOR (HEIGHT CONTROL WAY - SUSPENSION CONTROL ECU)


    1. Turn the power switch off.

    2. Disconnect the L104 suspension control ECU connector.

    3. Disconnect the A42 height control way connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L104-9 (SPB2) - A42-3 (SHB) Always Below 1 Ω
      L104-7 (SPS2) - A42-2 (PAC2) Always Below 1 Ω
      L104-9 (SPB2) or A42-3 (SHB) - Body ground Always 10 kΩ or higher
      L104-7 (SPS2) or A42-2 (PAC2) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE SUSPENSION CONTROL ECUClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR