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: Description

The height control sensor sub-assembly controls the resistance value by following changes in vehicle height. The suspension control ECU detects the change in vehicle height from the transformed voltage. The suspension control ECU outputs a constant voltage of 5 V to the SHB terminal of the height control sensor sub-assembly.

In the height control sensor the voltage is changed due to the resistance. The changed voltage is output from the SHFR terminal of the height control sensor sub-assembly to suspension control ECU, thus the vehicle height is detected.

HINT:

If DTC C1711/11, C1712/12, C1713/13 or C1714/14 is output, the vehicle height control is suspended. Height control OFF switch on the combination meter assembly comes on and the vehicle height indicator "N" comes on or blink.
If the normal signal is output from the height control sensor sub-assembly while suspending the vehicle height control, the vehicle height control is resumed. The operation is also resumed when the ignition switch is turned off once, then turned on again.

DTC No.	DTC Detecting Condition	Trouble Area
C1711/11	With the ignition switch ON, a voltage of 4.7 V or more or 0 3 V or less at each height control sensor sub assembly is 0.3 sub-assembly is detected for 1 sec.	1. Height control sensor sub-assembly front RH 2. Right front height control sensor circuit 3. Suspension control ECU
C1712/12		1. Height control sensor sub-assembly front LH 2. Left front height control sensor circuit 3. Suspension control ECU
C1713/13		1. Height control sensor sub-assembly rear RH 2. Right rear height control sensor circuit 3. Suspension control ECU
C1714/14		1. Height control sensor sub-assembly rear LH 2. Left rear height control sensor circuit 3. Suspension control ECU