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Home >> Lexus >> 2019 >> LC 500h >> Repair and Diagnosis (Single Page) >> Suspension >> Suspension Control Systems >> Adaptive Variable Suspension System - Diagnostic Codes >> Adaptive Variable Suspension System >> DTC C1711: Front Height Control Sensor RH Circuit Malfunction; DTC C1712: Front Height Control Sensor LH Circuit Malfunction; DTC C1713: Rear Height Control Sensor RH Circuit Malfunction; DTC C1714: Rear Height Control Sensor LH Circuit Malfunction [01/2017 - ] >> Description

DTC C1711: Front Height Control Sensor RH Circuit Malfunction; DTC C1712: Front Height Control Sensor LH Circuit Malfunction; DTC C1713: Rear Height Control Sensor RH Circuit Malfunction; DTC C1714: Rear Height Control Sensor LH Circuit Malfunction [01/2017 - ]: Description

The height control sensor sub-assembly changes the resistance according to the change in vehicle height. The absorber control ECU outputs a fixed voltage of 5 V to the height control sensor sub-assembly SHB terminal. If the sensor's resistance value changes, the sensor's voltage changes accordingly. The suspension ECU then inputs the voltage value from the sensor to detect the vehicle height change.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory
C1711 Front Height Control Sensor RH Circuit Malfunction One of the following conditions is met:
  • The power source voltage of the front height control sensor sub-assembly RH is 4.3 V or less, or 5.5 V or higher continuously for 0.5 seconds.
  • The output voltage of the front height control sensor sub-assembly RH is 0.3 V or less, or 4.7 V or higher continuously for 1 second.
  • Front height control sensor sub-assembly RH stuck malfunction.
  • Front height control sensor sub-assembly RH
  • Wire harness or connector
  • Absorber control ECU
Does not come on Yes
C1712 Front Height Control Sensor LH Circuit Malfunction One of the following conditions is met:
  • The power source voltage of the front height control sensor sub-assembly LH is 4.3 V or less, or 5.5 V or higher continuously for 0.5 seconds.
  • The output voltage of the front height control sensor sub-assembly LH is 0.3 V or less, or 4.7 V or higher continuously for 1 seconds.
  • Front height control sensor sub-assembly LH stuck malfunction.
  • Front height control sensor sub-assembly LH
  • Wire harness or connector
  • Absorber control ECU
Does not come on Yes
C1713 Rear Height Control Sensor RH Circuit Malfunction One of the following conditions is met:
  • The power source voltage of the rear height control sensor sub-assembly RH is 4.3 V or less, or 5.5 V or higher continuously for 0.5 seconds.
  • The output voltage of the rear height control sensor sub-assembly RH is 0.3 V or less, or 4.7 V or higher continuously for 1 seconds.
  • Rear height control sensor sub-assembly RH stuck malfunction.
  • Rear height control sensor sub-assembly RH
  • Wire harness or connector
  • Absorber control ECU
Does not come on Yes
C1714 Rear Height Control Sensor LH Circuit Malfunction One of the following conditions is met:
  • The power source voltage of the rear height control sensor sub-assembly LH is 4.3 V or less, or 5.5 V or higher continuously for 0.5 seconds.
  • The output voltage of the rear height control sensor sub-assembly LH is 0.3 V or less, or 4.7 V or higher continuously for 1 seconds.
  • Rear height control sensor sub-assembly LH stuck malfunction.
  • Rear height control sensor sub-assembly LH
  • Wire harness or connector
  • Absorber control ECU
Does not come on Yes