| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000ZP1G |
| Model Year Start: 2017 | Model: Sienna | Prod Date Range: [08/2016 - ] |
| Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: Engine Coolant Temperature Receiver Gauge Malfunction; 2017 - 2020 MY Sienna [08/2016 - ] | ||
|
Engine Coolant Temperature Receiver Gauge Malfunction |
DESCRIPTION
In this circuit, the meter CPU receives engine coolant temperature signals from the ECM using the CAN communication system (CAN V1 Bus). The meter CPU displays engine coolant temperature that is calculated based on the data received from the ECM.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
HINT:
If there is an open or short in the engine coolant temperature sensor circuit, the ECM stores the DTCs. Troubleshoot the SFI System (See page
![2017 MY Sienna [08/2016 - 11/2017]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: DIAGNOSTIC TROUBLE CODE CHART](/t3Portal/stylegraphics/info.gif)
).
PROCEDURE
|
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Check if a CAN communication DTC is output (See page
).
Result
|
Result |
Proceed to |
|---|---|
|
CAN communication DTC is not output |
A |
|
CAN communication DTC is output |
B |
| B |
|
GO TO CAN COMMUNICATION SYSTEM
|
|
|
2. |
PERFORM ACTIVE TEST USING TECHSTREAM (WATER TEMPERATURE METER OPERATION) |
(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 / Active Test.
(e) According to the display on the Techstream, perform the Active Test.
Combination Meter
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Water Temperature Meter Operation |
Engine coolant temperature receiver gauge |
OFF, LOW, NORMAL, HIGH |
Operate with IG ON and the vehicle is stopped. |
OK:
Engine coolant temperature receiver gauge indication is normal.
| NG |
|
|
|
3. |
READ VALUE USING TECHSTREAM (COOLANT TEMPERATURE) |
(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 |
|---|---|---|---|
|
Coolant Temperature |
Engine coolant temperature/ Min.: 0°C (32°F), Max.: 127.5°C (261.5°F) |
80 to 100°C (176 to 212°F); After warming up |
- |
OK:
Engine coolant temperature value displayed on the Techstream is almost the same as the engine coolant temperature receiver gauge indication.
| NG |
|
|
|
4. |
CHECK ENGINE CONTROL SYSTEM |
(a) Check if a engine control DTC is output (See page
).
Result
|
Result |
Proceed to |
|---|---|
|
Engine control DTC is not output |
A |
|
Engine control DTC is output |
B |
| A |
|
| B |
|
|
|