AIR SUSPENSION SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Tech Tips

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below.

Air Suspension System
DTC Code Detection Item HEIGHT HIGH Indicator Memory See page
C1711 Front Height Control Sensor RH Circuit Malfunction O O

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C1712 Front Height Control Sensor LH Circuit Malfunction O O

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C1713 Rear Height Control Sensor RH Circuit Malfunction O O

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C1714 Rear Height Control Sensor LH Circuit Malfunction O O

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C1715 Front Acceleration Sensor RH Malfunction X O

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C1716 Front Acceleration Sensor LH Malfunction X O

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C1717 Rear Acceleration Sensor Malfunction X O

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C1731 Front Damping Force Control Actuator RH Circuit Malfunction X O

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C1732 Front Damping Force Control Actuator LH Circuit Malfunction X O

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C1733 Rear Damping Force Control Actuator RH Circuit Malfunction X O

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C1734 Rear Damping Force Control Actuator LH Circuit Malfunction X O

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C1741 Front Height Control Solenoid Valve RH Circuit Malfunction O O

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C1742 Front Height Control Solenoid Valve LH Circuit Malfunction O O

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C1743 Rear Height Control Solenoid Valve RH Circuit Malfunction O O

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C1744 Rear Height Control Solenoid Valve LH Circuit Malfunction O O

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C1745 Exhaust Solenoid Valve Circuit Malfunction O O

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C1751 Compressor Relay Coil Malfunction O O

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C1752 Height Control Compressor Motor Circuit Malfunction O O

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C1761*1 Continuous Electric Current to Height Control Compressor Motor X O

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C1762*2 Continuous Electric Current to Exhaust Solenoid X O

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C1781 Suspension Control ECU Malfunction O*3 O

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C1782 Power Source Voltage Malfunction X X

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C1783 Speed Signal Communication Error X O

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C1784 Steering Angle Sensor Communication Error X O*4

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C1785 Steering Control ECU Communication Error X O

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C1787 Forward/Rearward/Sideways G Sensor Communication Error X O

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C1789 Vehicle Identification Malfunction X O*5

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C1796 Front Acceleration Sensor RH Malfunction (Test Mode DTC) Test mode code Test mode code

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C1797 Front Acceleration Sensor LH Malfunction (Test Mode DTC) Test mode code Test mode code

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C1798 Rear Acceleration Sensor Malfunction (Test Mode DTC) Test mode code Test mode code

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U0100 Lost Communication with ECM / PCM "A" X X

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U0101/71 Lost Communication with TCM X X

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U0122/71 Lost Communication with Vehicle Dynamics Control Module X X

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U0124 Lost Communication with Lateral Acceleration Sensor Module X X

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U0126/71 Lost Communication with Steering Angle Sensor Module X X

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U0130/71 Lost Communication with Steering Effort Control Module X X

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U0132 Lost Communication with Suspension Control ECU X X

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Tech Tips


  • *1: The system may output DTC C1761 even when the system is normal if one of the following occurs: 1) the vehicle is full of passengers and the luggage compartment is full; 2) the vehicle is being driven or is stopped on an irregular surface; or 3) the air ducts are frozen.

  • *2: The system may output DTC C1762 even when the system is normal if one of the following occurs: 1) the vehicle is being driven or is stopped on an irregular surface; or 2) the air tubes are clogged with snow or are frozen. If DTC C1762 is output, vehicle height control will stop. However, if the engine switch is turned OFF and then ON (IG), vehicle height control will start.

  • *3: If the CAN communication resistor is stuck, the HEIGHT HIGH indicator light will not turn on.

  • *4: If there is an open in the +B circuit, the DTC is not stored.

  • *5: If the vehicle identification information is not set, the DTC is not stored.