Using a diagnostic tool, navigate to the or IPDM E/R section and select "Height Sensor Initialization." The vehicle must be on a level surface with no cargo or passengers inside to calibrate correctly. 3. Module Configuration
Specifically indicates "Missing Calibration" or that the system is "Not Configured" . Nissan B20db-54
Low battery voltage or a recent jump-start can sometimes corrupt the configuration data in the IPDM E/R. Step-by-Step Diagnostic & Repair Using a diagnostic tool, navigate to the or
Once the calibration is successful, clear the fault code and restart the vehicle to verify that the headlights perform their "startup dance" (moving up and down) correctly. Low battery voltage or a recent jump-start can
The code is rarely a sign of a mechanical engine failure and is almost always electrical or software-related:
The most common cause; the IPDM E/R was replaced or reset and the "Height Sensor Initialization" procedure was never performed.
Headlights may automatically dip to their lowest position (a "fail-safe" mode) to prevent blinding other drivers, severely reducing nighttime visibility.
