| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VKHK |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - 08/2016] |
| Title: LIGHTING (EXT): LIGHTING SYSTEM: Front Fog Light Circuit; 2016 MY Sienna [12/2015 - 08/2016] | ||
|
Front Fog Light Circuit |
DESCRIPTION
The main body ECU controls the fog light relay.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
|
1. |
PERFORM ACTIVE TEST USING TECHSTREAM (FRONT FOG LIGHT RELAY) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Active Test.
(e) Check that the relay operates.
Main Body
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Front Fog Light Relay |
Front fog light relay |
ON/OFF |
- |
OK:
Front fog light relay operates. (Front fog lights come on.)
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
|
2. |
REPLACE INTEGRATION RELAY |
(a) Temporarily replace the integration relay with a new or normally functioning one.
|
|
3. |
PERFORM ACTIVE TEST USING TECHSTREAM (FRONT FOG LIGHT RELAY) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Active Test.
(e) Check that the relay operates.
Main Body
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Front Fog Light Relay |
Front fog light relay |
ON/OFF |
- |
OK:
Front fog light relay operates. (Front fog lights come on.)
| OK |
|
END (INTEGRATION RELAY WAS DEFECTIVE) |
|
|
4. |
CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) |
(a) Remove the integration relay from the engine room relay block.
(b) Disconnect the 2F instrument panel junction block assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1C-26 (FFG) - 2F-38 |
Always |
Below 1 Ω |
|
1C-26 (FFG) or 2F-38 - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
5. |
INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
|
(a) Remove the instrument panel junction block assembly. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
2F-38 - 2I-13 (FFGO) |
Always |
Below 1 Ω |
|
2F-38 or 2I-13 (FFGO) - Body ground |
Always |
10 kΩ or higher |
Text in Illustration
|
*a |
Component without harness connected (Instrument Panel Junction Block Assembly) |
| OK |
|
| NG |
|
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
|
|