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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (Suspension Control System) >> Active Height Control Suspension >> DTC C1711/11, C1712/12, C1713/13: Front Height Control Sensor RH Circuit Malfunction; Front Height Control Sensor LH Circuit Malfunction; Rear Height Control Sensor Circuit Malfunction >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

When using the intelligent tester, start from  1. When not using the intelligent tester, start from  2.

  1. READ VALUE OF INTELLIGENT TESTER (HEIGHT CONTROL SENSOR) 
    1. Connect the intelligent tester to the DLC3.
    2. Turn the ignition switch ON and push the intelligent tester main switch ON.
    3. Select the DATA LIST mode on the intelligent tester.
    4. Check that the vehicle height value of the height control sensor displayed by the intelligent tester is changing when pushing the UP or DOWN button of the height select switch.

      OK: 

      Vehicle height value must be changing. 

    NG: Go to step   3 

    OK: REPLACE SUSPENSION CONTROL ECU 

  2. CHECK SUSPENSION CONTROL ECU 
    1. Remove the suspension control ECU with connectors still connected.
    2. Turn the ignition switch ON.
    3. Measure the voltage between terminals SHB and SHG of the suspension control ECU connector.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      S21-1 (SHB) - S21-9 (SHG) Approximately 5 V
      Fig 1: Removing Suspension Control ECU With Connectors
      G04437422Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: Go to step   4 

    OK: GO TO NEXT STEP 

  3. INSPECT HEIGHT CONTROL SENSOR (RIGHT FRONT, LEFT FRONT AND REAR) 
    1. Disconnect the height control sensor connector.
    2. Remove the height control sensor.
    3. Connect 3 dry batteries of 1.5 V in series.
    4. Connect terminal 2 to the batteries' positive (+) terminal, and terminal 3 to the batteries' negative (-) terminal, then apply voltage about 4.5 V between terminals 2 and 3.
    5. Measure the voltage between terminals 1 and 3 when the height control sensor link is slowly moved up and down.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Sensor Link Position Specified Condition
      1 - 3 Max. HI Approximately 4.05 V
      1 - 3 N Approximately 2.25 V
      1 - 3 Min. LO Approximately 0.45 V
    6. Disconnect the height control sensor connector.
    7. Remove the height control sensor.
    8. Connect 3 dry batteries of 1.5 V in series.
    9. Connect terminal 1 to the batteries' positive (+) terminal, and terminal 3 to the batteries' negative (-) terminal, then apply voltage about 4.5 V between terminals 1 and 3.
    10. Measure the voltage between terminals 2 and 3, when the height control sensor link is slowly moved up and down.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Sensor Link Position Specified Condition
      2 - 3 Max. HI Approximately 4.05 V
      2 - 3 N Approximately 2.25 V
      2 - 3 Min. LO Approximately 0.45 V
      Fig 2: Disconnecting Height Control Sensor Connector
      G04437423Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE HEIGHT CONTROL SENSOR (RIGHT FRONT, LEFT FRONT AND REAR) 

    OK: GO TO NEXT STEP 

  4. CHECK WIRE HARNESS (HEIGHT CONTROL SENSOR (RIGHT FRONT, LEFT FRONT AND REAR) - SUSPENSION CONTROL ECU) 

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: REPLACE SUSPENSION CONTROL ECU 

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