Illumination Circuit

LIGHTING: LIGHTING SYSTEM: Illumination Circuit

Illumination Circuit

DESCRIPTION

This circuit is used to turn the illumination on.
According to the control signal from the Multiplex Network Body ECU by the BEAN signal, the Multiplex Network Body ECU No. 2 performs lighting, lights-out and adjustment of the foot light and the inside door handle illumination.
The Multiplex Network Body ECU controls lighting and lights-out of the center console spot light.
According to the control signal from the Multiplex Network Body ECU by the BEAN signal, the Body ECU No. 2 performs lighting and lights-out of the side step light.

WIRING DIAGRAM









INSPECTION PROCEDURE
HINT: Start the inspection from step 1 in the case of using the intelligent tester, and start from step 2 in the case of not using the intelligent tester.

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM
(a) Using the Techstream, perform the Active Test.

Body No. 2





OK:
Illumination condition is switched by Active Test.
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG -- Continue to next step.
2. INSPECT ILLUMINATION LIGHT





(a) Inspect the interior illumination light assembly No. 1
(Inside handle illumination)
(1) Check continuity between terminals 1 (+B) and 2 (GND).
Standard resistance:
Below 1 Ohms
HINT: Connect the positive (+) terminal of the tester to the terminal 1 (+B) of the connector, and the negative (-) terminal of the tester to the terminal 2 (GND) of the connector to check the continuity.





(b) Inspect the interior illumination light assembly No. 2
(Foot light)
(1) Check continuity between terminals 1 (+B) and 2 (GND).
Standard resistance:
Below 1 Ohms
HINT: Connect the positive (+) terminal of the tester to the terminal 1 (+B) of the connector, and the negative (-) terminal of the tester to the terminal 2 (GND) of the connector to check the continuity.
(c) Inspect the side step light assembly
(1) Check continuity between terminals when the courtesy light switch is operated.
Standard resistance:
ON: Below 1 Ohms
OFF: 10 kOhms or higher
NG -- REPLACE ILLUMINATION LIGHT
OK -- Continue to next step.
3. INSPECT MULTIPLEX NETWORK BODY ECU NO. 2 (CSPT, RBD1, RBD2, RSPT, LSPT)





(a) Measure the voltage between terminals of the multiplex network body ECU No. 2.
Standard voltage:






OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR