LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2012 >> Matrix Base, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 233 (Lighting System (Interior) (Diagnostics & Circuit Tests)) >> Lighting System >> Problem Symptoms Table >> Problem Symptoms Table
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Problem Symptoms Table

WARNING: This page is about a different car, the 2011 Toyota Matrix. However, it is still accessible from the selected car via links, so may be relevant.

HINT: 

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

ILLUMINATED ENTRY SYSTEM

Symptom Suspected Area See
Only personal light*1 does not illuminate. Bulb -
Map light assembly Refer to INSPECTION
Harness or connector -
Only center room light does not illuminate. Bulb -
No. 1 room light assembly Refer to INSPECTION
Harness or connector -
Only rear room light does not illuminate. Bulb -
No. 2 room light assembly Refer to INSPECTION
Harness or connector -
All of lights (personal light*1, center room light and rear room light) controlled by illuminated entry system do not operate normally. Door courtesy switch circuit Refer to Door Courtesy Switch Circuit 
Door lock position switch circuit Refer to Door LOCK Position Circuit 
IG signal circuit Refer to IG Signal Circuit 
ACC signal circuit Refer to ACC Signal Circuit 
Interior light circuit Refer to Interior Light Circuit 
Main body ECU (Instrument panel junction block) -
Battery saving function does not operate. Door courtesy switch circuit Refer to Door Courtesy Switch Circuit 
IG signal circuit Refer to IG Signal Circuit 
Key unlock warning switch circuit Refer to Key Reminder Buzzer does not Sound
Main body ECU (Instrument panel junction block) -
INTERIOR LIGHT

Symptom Suspected Area See
Personal light does not illuminate. Bulb -
Map light assembly Refer to INSPECTION
Harness or connector -

HINT: