Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Combination Meter System: Inspection: Switch
Illumination intensity does not change even when the illumination control switch is operated.
Illumination intensity does not change even when the illumination control switch is operated with the lighting switch OFF.
- CHECK CURRENT DATA
.
Display the data of [Bright switch input state] and [Illumination control switch input state] using Subaru Select Monitor. Ref. to COMBINATION METER (DIAGNOSTICS)>DATA MONITOR .
Do the display change as [OFF] ← [ON] and the value range from 0 to 100 when the bright switch and illumination control switch are operated?
Yes: Replace the combination meter assembly.
No: Go to 2.
- CHECK ILLUMINATION CONTROL SWITCH UNIT
.
Check the illumination control switch. Ref. to INSTRUMENTATION/DRIVER INFO>SWITCHES AND HARNESS>INSPECTION>ILLUMINATION CONTROL SWITCH .
Is the switch normal?
Yes: Go to 3.
No: Replace the illumination control switch.
- CHECK HARNESS
.
- Disconnect the connectors of combination meter assembly and illumination control switch.
- Measure the resistance between the combination meter assembly and the illumination control switch.
Connector & terminal
(i10) No. 29 - (i79) No. 6:
(i10) No. 30 - (i79) No. 5:
(i10) No. 31 - (i79) No. 4:
(i10) No. 32 - (i79) No. 1:
Is the resistance less than 1 Ω?
Yes: Replace the combination meter assembly.
No: Repair or replace the harness.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.