Suspension Control ( Automatic - Electronic Level )

DTC - 14 - Left Rear Height Control Sensor Circuit

CIRCUIT DESCRIPTION

DTC Detecting Condition:

At inside of each sensor, a brush integrated with the control sensor rotor shaft moves above the resister, providing linear output Since the resistance value between the brush and resistor terminal changes in pro- portion to the shaft rotation angle, the fixed voltage applied to the resistor by the ECU is modified by the sensor and output to the ECU as a voltage indicating the shaft rotation angle.

HINT:
- Once ECU stores DTC - C1713/13 or C1714/14 in memory, vehicle height control is not carried out until a normal signal is input to the ECU from the height control sensor sub-assy.
However, the control resumes if the ignition switch is once turned OFF, and then turned ON again.
- When suspension control ECU detects a malfunction in the height control sensor, the height control indicator lamp "N" comes on or blinks, and the height control switch ("HI" and "LO") is suspended.
- When either one of the right or left height control sensor sub-assy is faulty, the suspension control ECU uses the other one (normal one) to adjust the vehicle height to the normal height. When both of the height control sensor sub-assy are faulty, the suspension control ECU suspend the height control immediately.

Wiring Diagram:

Step 1 - 2:

Step 3 - 4:

INSPECTION PROCEDURE

HINT:
- Proceed to troubleshooting following the flow chart, regardless of whether or not DTC - C1713/13 or C1714/14 is displayed.
- If DTC - C1761/61 (ECU malfunction) and/or C1774/74 (power source circuit) is displayed, perform the inspection necessary for DTC - C1761/61 and/or C1774/74 first.
(If DTC - C1761/61 and C1774/74 are output at the same time, perform the inspection necessary for DTC - C1774/74 first.)
- Start the inspection from step 1 in case of using the hand-held tester and start from step 2 in case of not using the hand-held tester.