Toyota Tacoma (2015-2018) Service Manual: 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
.png)
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 (for 2TR-FE) (See page
.gif)
) or SFI System (for 2GR-FKS) (See page
) .
PROCEDURE
|
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Check if a CAN communication DTC is output (See page
).
|
Result |
Proceed to |
|---|---|
|
CAN communication DTC is not output |
A |
|
CAN communication DTC is output |
B |
| B | .gif) |
GO TO CAN COMMUNICATION SYSTEM |
|
.gif)
|
2. |
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 | |
REPLACE COMBINATION METER ASSEMBLY |
|
|
3. |
CHECK ENGINE CONTROL SYSTEM |
(a) Check if a engine control DTC is output.
- for 2TR-FE: (See page )
- for 2GR-FKS: (See page )
|
Result |
Proceed to |
|---|---|
|
Engine control DTC is not output |
A |
|
Engine control (for 2TR-FE) DTC is output |
B |
|
Engine control (for 2GR-FKS) DTC is output |
C |
| A | |
REPLACE COMBINATION METER ASSEMBLY |
| B | |
GO TO SFI SYSTEM (for 2TR-FE) |
| C | |
GO TO SFI SYSTEM (for 2GR-FKS) |
Tachometer Malfunction
DESCRIPTION
In this circuit, the meter CPU receives engine speed signals from the ECM using
the CAN communication system (CAN V1 Bus). The meter CPU displays the engine speed
calculated based on ...
Fuel Receiver Gauge Malfunction
DESCRIPTION
The meter CPU uses the fuel sender gauge assembly to determine the level of the
fuel in the fuel tank. The resistance of the fuel sender gauge will vary between
approximately 13.5 Ω ...
Other materials:
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" column of the
table. Check each sy ...
Differential System(w/o Differential Lock)
Precaution
PRECAUTION
1. Before disassembly, clean the outside of the front and rear differential assembly
and remove any sand and mud to prevent it from entering the assembly during disassembly
and installation.
2. When removing connected parts made of a light alloy, such as front and rear ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the sliding roof system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
...
