Illumination Circuit

LIGHTING SYSTEM: Illumination Circuit

Illumination Circuit

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM (ILLUMINATION LIGHT)
(a) Operate the Techstream according to the steps on the display and select "Active Test".

Main Body





Result





D -- INSPECT ROOM LIGHT SWITCH
C -- INSPECT FOOT LIGHT
B -- INSPECT IGNITION KEY CYLINDER LIGHT
A -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
2. INSPECT IGNITION KEY CYLINDER LIGHT





(a) w/ Engine Immobiliser System:
(1) Remove the ignition key cylinder light (Removal).
(b) w/o Engine Immobiliser System:
(1) Remove the ignition key cylinder light (Removal).
(c) Connect the battery's positive (+) lead to terminal 2 (ILL+) and the negative (-) lead to terminal 6 (ILL-), and then check that the light turns on.
OK:
Ignition key cylinder light turns on.

Result





C -- REPLACE IGNITION KEY CYLINDER LIGHT
B -- REPLACE IGNITION KEY CYLINDER LIGHT
A -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (IGNITION KEY CYLINDER LIGHT - MAIN BODY ECU AND BATTERY)





(a) Disconnect the J20*1 or J99*2 light connector.

HINT: *1: w/ Engine Immobiliser System

*2: w/o Engine Immobiliser System

(b) Disconnect the DD ECU connector.
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:

w/ Engine Immobiliser System





w/o Engine Immobiliser System:





(d) Measure the resistance according to the value(s) in the table below.
Standard resistance:

w/ Engine Immobiliser System





w/o Engine Immobiliser System:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU
4. INSPECT FOOT LIGHT





(a) Remove the foot light (Removal).
(b) Connect the battery's positive (+) lead to terminal 2 and the negative (-) lead to terminal 1, and then check that the light turns on.
OK:
Foot light turns on.
NG -- REPLACE FOOT LIGHT
OK -- Continue to next step.
5. CHECK HARNESS AND CONNECTOR (FOOT LIGHT - MAIN BODY ECU AND BATTERY)





(a) Disconnect the J51 light connector.
(b) Disconnect the DD ECU connector.
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:





(d) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU
6. INSPECT ROOM LIGHT SWITCH





(a) Remove the room light switch (Removal).
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- REPLACE ROOM LIGHT SWITCH
OK -- Continue to next step.
7. INSPECT ROOF CONSOLE BOX ASSEMBLY





(a) Remove the roof console box (Removal).
(b) Roof console box switch is DOOR.
(c) Connect the battery's positive (+) lead to terminal 2 (B) and the negative (-) lead to terminal 1 (CTY), and then check that the light turns on.
OK:
Map light turns on.
NG -- REPLACE ROOF CONSOLE BOX ASSEMBLY
OK -- Continue to next step.
8. CHECK HARNESS AND CONNECTOR (ROOF CONSOLE BOX - MAIN BODY ECU AND BATTERY)





(a) Disconnect the W7 box connector.
(b) Disconnect the DD ECU connector.
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:





(d) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU