| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VKHL |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: LIGHTING (EXT): LIGHTING SYSTEM: Hazard Warning Switch Circuit; 2016 - 2020 MY Sienna [12/2015 - ] | ||
|
Hazard Warning Switch Circuit |
DESCRIPTION
The combination meter assembly receives the hazard warning signal switch assembly signal and controls the operation of the hazard warning lights.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (HAZARD FLASHER SWITCH) |
(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 / Combination Meter / Data List.
(e) According to the display on the Techstream, read the Data List.
Combination Meter
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Hazard Flasher Switch |
Hazard warning signal switch signal/ON or OFF |
ON: Hazard warning signal switch on OFF: Hazard warning signal switch off |
- |
OK:
Normal conditions listed above are displayed.
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (See page
|
|
|
2. |
INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY |
(a) Remove the air conditioning control assembly (hazard switch) (See page
![2016 - 2020 MY Sienna [12/2015 - ]; LIGHTING (EXT): HAZARD WARNING SWITCH: REMOVAL](/t3Portal/stylegraphics/info.gif)
).
(b) Inspect the air conditioning control assembly (hazard switch) (See page
).
| NG |
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - BATTERY) |
|
(a) Disconnect the combination meter assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D146-1 (B) - Body ground |
Always |
11 to 14 V |
Text in Illustration
|
*a |
Front view of wire harness connector (to Combination Meter Assembly) |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY (HAZARD SWITCH) - COMBINATION METER ASSEMBLY AND BODY GROUND) |
(a) Disconnect the D69 air conditioning control assembly (hazard switch) connector.
(b) Disconnect the D146 combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D69-6 (HAZ) - D146-5 (HAZ) |
Always |
Below 1 Ω |
|
D69-5 (GND) - Body ground |
Always |
Below 1 Ω |
|
D69-6 (HAZ) or D146-5 (HAZ) - 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 |
|
|