Luggage Room Light Circuit
The multiplex network door ECU controls the spot light.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses and bulbs for circuits related to this system before performing the following inspection procedure.
PROCEDUREPERFORM ACTIVE TEST USING TECHSTREAM (SPOT LIGHT)
(a) Using the Techstream, perform the Active Test (See page
).
Back Door
Tester Display | Test Part | Control Range | Diagnostic Note |
|---|---|---|---|
Luggage Compartment Light |
Spot light |
ON/OFF |
- |
OK:
Spot light comes on.
| OK | ![]() | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
CHECK HARNESS AND CONNECTOR (BATTERY - MULTIPLEX NETWORK DOOR ECU)
(a) Disconnect the V2 multiplex network door ECU connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
|---|---|---|
V2-17 (B1) - Body ground |
Always |
11 to 14 V |
*a |
Front view of wire harness connector (to Multiplex Network Door ECU) |
| NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
CHECK HARNESS AND CONNECTOR (SPOT LIGHT ASSEMBLY - MULTIPLEX NETWORK DOOR ECU)
(a) Disconnect the W12 or W7 spot light connector.
(b) Disconnect the W10 multiplex network door ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for LH
Tester Connection | Condition | Specified Condition |
|---|---|---|
W12-1 (B) - W10-25 (B2) |
Always |
Below 1 Ω |
W12-3 (CTY) - W10-22 (LGLP) |
Always |
Below 1 Ω |
W12-2 (E) - W10-19 (E1) |
Always |
Below 1 Ω |
W12-1 (B) - Body ground |
Always |
10 kΩ or higher |
W12-3 (CTY) - Body ground |
Always |
10 kΩ or higher |
W12-2 (E) - Body ground |
Always |
10 kΩ or higher |
for RH
Tester Connection | Condition | Specified Condition |
|---|---|---|
W7-1 (B) - W10-26 (B3) |
Always |
Below 1 Ω |
W7-3 (CTY) - W10-23 (LGP2) |
Always |
Below 1 Ω |
W7-2 (E) - W10-20 (E2) |
Always |
Below 1 Ω |
W7-1 (B) - Body ground |
Always |
10 kΩ or higher |
W7-3 (CTY) - Body ground |
Always |
10 kΩ or higher |
W7-2 (E) - Body ground |
Always |
10 kΩ or higher |
| OK | ![]() | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Test yourself
A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.
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