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Home >> Land Rover >> 2017 >> Range Rover Autobiography >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Daytime Running Lamps -- Range Rover/L405 >> Daytime Running Lamps >> Diagnosis And Testing >> Symptom Chart

Symptom Chart

SYMPTOM POSSIBLE CAUSES ACTION
Daytime running lamps inoperative
  • Daytime running lamps working as specified or within system limitations
  • Car configuration file mismatch with vehicle specification
  • Daytime running lamps circuit short circuit to ground, short circuit to power, open circuit, high resistance
  • Headlamp internal failure
NOTE: After updating the car configuration file, set the ignition to on and wait 30 seconds before clearing the DTCs.
  • For a detailed description of the daytime running lamps, refer to the relevant Description and Operation section in the service information.
  • Using the manufacturer approved diagnostic system, check and up-date the car configuration file as necessary. Clear the DTCs and retest
  • Refer to the appropriate system wiring diagrams and check the daytime running lamps circuit for short circuit to ground, short circuit to power, open circuit, high resistance
  • Install a new headlamp