Diagnostic Trouble Code Chart

HINT:

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code.

Air suspension system

AIR SUSPENSION SPECIFICATION

DTC Code	Detection Item	Trouble Area	Height Control Indicator Light
C1711/11	Front Height Control Sensor RH Circuit Malfunction	Wire harness or connector Front height control sensor RH Suspension control ECU	◦
C1712/12	Front Height Control Sensor LH Circuit Malfunction	Wire harness or connector Front height control sensor LH Suspension control ECU	◦
C1713/13	Rear Height Control Sensor RH Circuit Malfunction	Wire harness or connector Rear height control sensor RH Suspension control ECU	◦
C1714/14	Rear Height Control Sensor LH Circuit Malfunction	Wire harness or connector Rear height control sensor LH Suspension control ECU	◦
C1715/15	Front Acceleration Sensor RH Malfunction	Suspension control ECU	X
C1716/16	Front Acceleration Sensor LH Malfunction	Front acceleration sensor LH Wire harness or connector Suspension control ECU	X
C1717/17	Rear Acceleration Sensor Malfunction	Rear acceleration sensor Wire harness or connector Suspension control ECU	X
C1731/31	Front Damping Force Control Actuator RH Circuit Malfunction	Front absorber control actuator RH Wire harness or connector Suspension control ECU	X
C1732/32	Front Damping Force Control Actuator LH Circuit Malfunction	Front absorber control actuator LH Wire harness or connector Suspension control ECU	X
C1733/33	Rear Damping Force Control Actuator RH Circuit Malfunction	Rear absorber control actuator RH Wire harness or connector Suspension control ECU	X
C1734/34	Rear Damping Force Control Actuator LH Circuit Malfunction	Rear absorber control actuator LH Wire harness or connector Suspension control ECU	X
C1741/41	Front Height Control Solenoid Valve RH Circuit Malfunction	Front height control valve Wire harness or connector Suspension control ECU	◦
C1742/42	Front Height Control Solenoid Valve LH Circuit Malfunction	Front height control valve Wire harness or connector Suspension control ECU	◦
C1743/43	Rear Height Control Solenoid Valve RH Circuit Malfunction	Rear height control valve Wire harness or connector Suspension control ECU	◦
C1744/44	Rear Height Control Solenoid Valve LH Circuit Malfunction	Rear height control valve Wire harness or connector Suspension control ECU	◦
C1745/45	Exhaust Solenoid Valve Circuit Malfunction	Height control compressor Wire harness or connector Suspension control ECU	◦
C1751/51	Compressor Relay Coil Malfunction	Suspension control relay Wire harness or connector Suspension control ECU	◦
C1752/52	Height Control Compressor Motor Circuit Malfunction	Suspension control relay Wire harness or connector Height control compressor Suspension control ECU	◦
C1761/61 *	Continuous Electric Current to Height Control Compressor Motor	Air leakage from the air tube or each valve Suspension control relay Front height control valve Rear height control valve Height control compressor Suspension control ECU	X
C1762/62 *	Continuous Electric Current to Exhaust Solenoid	Air tube Front height control valve Rear height control valve Height control compressor Suspension control ECU	X
C1781/81	Suspension Control ECU Malfunction	Suspension control ECU	X
C1782/82	Power Source Voltage Malfunction	Battery Charging system Suspension control ECU	X
C1783/83	Speed Signal Communication Error	Speed sensor Skid control ECU Suspension control ECU	X
C1784/84	Steering Angle Sensor Communication Error	Steering sensor Steering sensor power source circuit Suspension control system	X
C1785/85	Steering Control ECU Communication Error	Steering control ECU	X
C1787/87	Forward/Rearward/Sideways G Sensor Communication Error	Yaw rate & acceleration sensor	X
C1788/88	Yaw Rate Sensor Communication Error	Yaw rate & acceleration sensor	X
C1796/96	Front Acceleration Sensor RH Malfunction (Test Mode DTC)	Suspension control ECU	Test mode code
C1797/97	Front Acceleration Sensor LH Malfunction (Test Mode DTC)	Front acceleration sensor LH Wire harness or connector Suspension control ECU	Test mode code
C1798/98	Rear Acceleration Sensor Malfunction (Test Mode DTC)	Rear acceleration sensor Wire harness or connector Suspension control ECU	Test mode code
U0100/71	Lost Communication with ECM / PCM "A	CAN communication system ECM Suspension control ECU	X
U0101/71	Lost Communication with TCM	CAN communication system TCM Suspension control ECU	X
U0122/71	Lost Communication with Vehicle Dynamics Control Module	CAN communication system Skid control ECU Suspension control ECU	X
U0124/71	Lost Communication with Lateral Acceleration Sensor Module	CAN communication system Yaw rate & acceleration sensor Suspension control ECU	X
U0126/71	Lost Communication with Steering Angle Sensor Module	CAN communication system Steering angle sensor Suspension control ECU	X
U0130/71	Lost Communication with Steering Effort Control Module	CAN communication system Steering control ECU Suspension control ECU	X
U0132/71	Lost Communication with Suspension Control ECU	Suspension control ECU	X
HINT: The system may output DTC C1761/61 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. The system may output DTC C1762/62 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 3) 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.