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Home >> Infiniti >> 2012 >> QX56 AWD >> Repair and Diagnosis >> Suspension >> Suspension Control Systems >> Air LEVELIZER Control System >> DTC/Circuit Diagnosis >> DTC C1806: VHCL Height Sen Fix >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

MALFUNCTION DETECTED CONDITION AND POSSIBLE CAUSE

DTC Display item Malfunction detected condition Possible cause
C1806 VHCL HEIGHT SEN FIX The signal voltage of the vehicle height sensor does not change for cumulated time of 100 hours under the condition that the air levelizer control module outputs sensor voltage (4.5 - 5.5 V) with vehicle speeds 2 km/h (2 MPH) or more.
  • Harness or connector
  • Vehicle height sensor
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