Illumination Circuit
Circuit diagnosis
DESCRIPTION
The body ECU controls the illumination light as shown below.- Ignition key cylinder light
- Scuff plate illumination
- Front room light
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to the ON position and press the intelligent tester main switch ON.
Select the items below in the ACTIVE TEST and then check that the relay operates.
BODY NO.1 Item
Test Details
Diagnostic Note
Illuminated Entry System
(Test Details)
Turn Interior light and Key illumination ON/OFF
(Vehicle Condition)
Interior light SW is in Door position and all doors are closed
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| OK | ||
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| 2. INSPECT INTERIOR LIGHT |
Inspect ignition key cylinder light (Click here).
Inspect scuff plate illumination (Click here).
Inspect front room light (Click here).
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| OK | |
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| 3. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
Measure the voltage according to the value(s) in the table below.
- Voltage:
Tester connection
Condition
Specified condition
1I-10 - Body ground
All door is closed → Front or rear door is open
10 to 14 V → Below 1 V
1M-1 - Body ground
All door is closed → Front or rear door is open
10 to 14 V → Below 1 V
1R-5 - Body ground
All door is closed → Front or rear door is open
10 to 14 V → Below 1 V
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| OK | ||
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