| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VJ61 |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - 11/2017] |
| Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Illumination Circuit; 2016 - 2017 MY Sienna [12/2015 - 11/2017] | ||
|
Illumination Circuit |
DESCRIPTION
Power is supplied to the navigation receiver assembly and steering pad switch assembly illumination when the light control switch is in the tail or head position.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System (See page
![2016 - 2020 MY Sienna [12/2015 - ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: PRECAUTION](/t3Portal/stylegraphics/info.gif)
).
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
|
1. |
CHECK ILLUMINATION |
(a) Check if the illumination for the navigation receiver assembly, steering pad switch assembly, heater control switch or others (hazard switch, transmission control switch, etc.) comes on when the light control switch is turned to the head or tail position.
Result
|
Result |
Proceed to |
|---|---|
|
Illumination comes on for all components except steering pad switch assembly |
A |
|
Illumination comes on for all components except navigation receiver assembly |
B |
|
No illumination comes on (navigation receiver assembly, hazard switch, heater control switch, etc.) |
C |
|
Illumination comes on for all components except steering pad switch assembly and navigation receiver assembly |
D |
| B |
|
| C |
|
| D |
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - BATTERY) |
|
(a) Disconnect the spiral cable with sensor sub-assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
D21-8 (IL+2) - Body ground*A |
Headlight dimmer switch assembly tail or head |
11 to 14 V |
|
D149-9 (IL+2) - Body ground*B |
Headlight dimmer switch assembly tail or head |
11 to 14 V |
Text in Illustration
|
*A |
w/o Steering Heater |
|
*B |
w/ Steering Heater |
|
*a |
Front view of wire harness connector (to Spiral Cable with Sensor Sub-assembly) |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
INSPECT STEERING PAD SWITCH ASSEMBLY |
(a) Remove the steering pad switch assembly (See page
).
(b) Inspect the steering pad switch assembly (See page
).
| OK |
|
| NG |
|
|
4. |
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - BATTERY) |
|
(a) Disconnect the navigation receiver assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
D57-10 (ILL+) - Body ground |
Headlight dimmer switch assembly tail or head |
11 to 14 V |
Text in Illustration
|
*a |
Front view of wire harness connector (to Navigation Receiver Assembly) |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (See page
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY) |
(a) Disconnect the D62 navigation receiver assembly connector.
(b) Disconnect the D145 combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D62-5 (ILL-) - D145-12 (ILL-) |
Always |
Below 1 Ω |
|
D62-5 (ILL-) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (See page
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|