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Home >> Infiniti >> 2017 >> QX80 Limited >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Interior Lighting System >> Symptom Diagnosis >> Interior Lighting System Symptoms >> Symptom Table

Symptom Table

NOTE:

Perform the self-diagnosis with CONSULT before the symptom diagnosis. Perform the trouble diagnosis if any DTC is detected.

Symptom Possible cause Inspection item
All the following lamps do not turn ON.
  • Map lamp
  • Personal lamp
  • Vanity mirror lamp
  • Foot lamp
  • Step lamp
  • Puddle lamp (without side step illumination lamp models)
  • Luggage room lamp
  • Automatic back door close switch illumination
  • Harness between BCM and each interior room lamp
  • BCM
 Interior room lamp power supply circuit
Refer to COMPONENT FUNCTION CHECK .
  • Interior room lamp does not turn ON even though the door is open.

    (It turns ON when turning the interior room lamp ON.)

  • Interior room lamp does not turn OFF even though the door is closed.
  • Harness between BCM and each door switch
  • Harness between BCM and each interior room lamp
  • BCM
 Door switch circuit
Refer to COMPONENT FUNCTION CHECK .
Interior room lamp control circuit
Refer to COMPONENT FUNCTION CHECK .
Interior room lamp timer does not activate.
(It turns ON/ OFF when the door opens/closes.)		 - Check the interior room lamp setting.
Refer to CONSULT FUNCTION (BCM - INT LAMP) .
  • Puddle lamp does not turn ON even though the door is open.
  • Puddle lamp does not turn OFF even though the door is closed.
  • Harness between BCM and each door switch
  • Harness between BCM and puddle lamp
  • BCM
 Door switch circuit
Refer to COMPONENT FUNCTION CHECK .
Puddle lamp circuit
Refer to DIAGNOSIS PROCEDURE .
  • Luggage room lamp or automatic back door close switch illumination does not turn ON even though the back door is open.

    (It turns ON when turning the luggage room lamp ON.)

  • Luggage room lamp or automatic back door close switch illumination does not turn OFF even though the back door is closed.
  • Harness between BCM and back door switch
  • Harness between BCM and luggage room lamp
  • Harness between BCM and automatic back door close switch
  • BCM
 Back door switch circuit
Refer to COMPONENT FUNCTION CHECK .
Luggage room lamp circuit
Refer to DIAGNOSIS PROCEDURE .
  • Step lamps (ALL) do not turn ON.
  • Step lamps (ALL) do not turn OFF.
  • Harness between BCM and each step lamp
  • BCM
 Door switch circuit
Refer to COMPONENT FUNCTION CHECK .
Step lamp circuit
Refer to COMPONENT FUNCTION CHECK .
Push-button ignition switch illumination does not illuminate.
  • Harness between BCM and push-button ignition switch
  • BCM
 Push-button ignition switch illumination circuit
Refer to COMPONENT FUNCTION CHECK .
Interior room lamp battery saver does not activate. BCM Replace BCM.
Refer to REMOVAL AND INSTALLATION .
  • Side step illumination lamp does not turn ON even though the door is open.
  • Side step illumination lamp does not turn OFF even though the door is closed.
 
  • Harness between puddle lamp and side step illumination control unit
  • Harness between side step illumination control unit and side step illumination lamp
  • Harness between side step illumination control unit and ground
  • Side step illumination control unit
 Side step illumination control signal
Refer to DIAGNOSIS PROCEDURE .
Side step illumination control unit power supply and ground circuit
Refer to DIAGNOSIS PROCEDURE .
Side step illumination lamp circuit
Refer to DIAGNOSIS PROCEDURE  (LH) or DIAGNOSIS PROCEDURE  (RH).
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