Height Sensor and Its Circuit Inspection (If Equipped)

Height Sensor and Its Circuit Inspection (If Equipped)

1) Remove front or rear height sensor from vehicle referring to Height Sensor Removal and Installation (If Equipped) Height Sensor Removal and Installation (If Equipped).
2) Connect connector to height sensor.
3) Vary position of height sensor link (1) and measure voltage between terminals of headlight auto leveling control module (4) as described below.
- For front height sensor
Between "G51-20" and "G51-22" terminals of headlight leveling control module.
- For rear height sensor
Between "G51-19" and "G51-21" terminals of headlight leveling control module.
If check result is not as specified, perform inspections of power supply, ground and signal circuits of front or rear height sensor which is described under "Inspection of Headlight Auto Leveling Control Module and Its Circuit (Vehicle Equipped With Headlight Auto Leveling System)". If circuits are OK, replace height sensor.

Height sensor output voltage
Fully compressed position (2): about 0.5 V
Fully extended position (3): about 4.5 V