Illumination Does Not Come On, Or Cannot Dim

WARNING: This page is about a different variant/trim than selected.

Trouble symptom:

Even when the lighting switch is operated, the illumination does not come on. Even when the illumination control is operated, the illumination does not dim.

Trouble causes:

Open circuit in illumination circuit

Wiring diagram:

Clearance light and illumination light system Ref. to WIRING SYSTEM (CROSSTREK MODEL (HEV))>CLEARANCE LIGHT AND ILLUMINATION LIGHT SYSTEM>WIRING DIAGRAM .

Courtesy of SUBARU OF AMERICA, INC.

CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to AIR CONDITIONERS (DIAGNOSTICS) (HEV)>GENERAL DESCRIPTION>CAUTION .

Courtesy of SUBARU OF AMERICA, INC.

CHECK ILLUMINATION .
Make sure that all illuminations except A/C come on.

Do other illuminations come on?

Yes : Go to 2.

No : Check the illumination circuit. Ref. to LIGHTING SYSTEM>CLEARANCE LIGHT AND ILLUMINATION LIGHT SYSTEM>INSPECTION .
CHECK CONNECTOR .
Check for poor contact of connector.

Is the check result OK?

Yes : Go to 3.

No : Repair the connector.
CHECK HARNESS (OPEN CIRCUIT) .
1. Turn the lighting switch to ON.
2. Using a tester, measure the voltage between the A/C control panel connector and chassis ground.
  Connector & terminal
  
  (i329) No. 8 (+) - Chassis ground (-):
Is the voltage 10 V or more?

Yes : Go to 4.

No : Repair or replace the open circuit of harness.
CHECK HARNESS (OPEN CIRCUIT) .
1. Turn the lighting switch to OFF.
2. Measure the resistance between A/C control panel connector and combination meter connector.
  Connector & terminal
  
  (i329) No. 2 - (i10) No. 34:
Is the resistance less than 10 Ω?

Yes : Replace the A/C control panel. Ref. to AIR CONDITIONER (HEV)>CONTROL PANEL .

No : Repair or replace the open circuit of harness.