01539

From Ross-Tech Wiki

01539 - Headlights Not Adjusted

01539 - Headlights Not Adjusted: No or Incorrect Basic Setting / Adaptation

Possible Symptoms

• Headlight Adjustment disabled
• Malfunction Indicator Light (MIL) active

Possible Causes

• Headlight Adjustment not performed
• Aftermarket Suspension installed (i.e. lowered Suspension)
• Level Sensor Readings out of Range
• Level Sensor(s) faulty
• Level Sensor Mounting damaged/faulty

Possible Solutions

• Perform Headlight Adjustment
  • See Vehicle specific Diagnostic Procedures for Details
• Check Level Sensors
• Check Level Sensor Mounting

Special Notes

• If Headlight Adjustment (Basic Setting) fails, check Level Sensors.
  • Check Measuring Value Blocks (MVB) if Level Sensor Readings within Specification.
• When stored in combination with 01537, fix that one first.