DESCRIPTION
In this circuit, the combination meter assembly receives engine coolant temperature signals from the ECM via CAN communication. The combination meter assembly displays the engine coolant temperature that is calculated based on the data received from the ECM.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
w/ Smart Key System: Click here
w/o Smart Key System: Click here
HINT:
If there is an open or short in the engine coolant temperature sensor circuit, the ECM stores DTCs. Troubleshoot the SFI system.
PROCEDURE
1. |
CHECK FOR DTC (METER / GAUGE SYSTEM) |
(a) Check if meter / gauge system DTCs are output.
Click here
Body Electrical > Combination Meter > Trouble Codes
Result |
Proceed to |
---|---|
Meter / gauge system DTCs are not output. |
A |
Meter / gauge system DTCs are output. |
B |
B |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
2. |
CHECK FOR DTC (SFI SYSTEM) |
(a) Check if SFI system DTCs are output.
Click here
Click here
Result |
Proceed to |
---|---|
DTCs are not output. |
A |
SFI system DTCs are output. (w/o Canister Pump Module) |
B |
SFI system DTCs are output. (w/ Canister Pump Module) |
C |
B |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
C |
GO TO SFI SYSTEM |
|
3. |
PERFORM ACTIVE TEST USING TECHSTREAM (ENGINE SPEED, ENGINE RPM) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus:
(1) for Engine: Powertrain / Engine / Data List.
(2) for Combination Meter: Body Electrical / Combination Meter / Data List.
(e) Read the Data List according to the display on the Techstream.
(1) Engine and ECT.
Powertrain > Engine and ECT > Data List
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|---|
Coolant Temp |
Engine coolant temperature |
Min.: -40°C (-40°F), Max.: 140°C (284°F) |
75 to 100°C (167 to 212°F): After warming up engine |
This is the engine coolant temperature.
|
Tester Display |
---|
Coolant Temp |
(2) Combination Meter.
Body Electrical > Combination Meter > Data List
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|---|
Coolant Temperature |
Engine coolant temperature |
Min.: 0°C (0°F), Max.: 127.5°C (261.5°F) |
75 to 100°C (167 to 212°F): After warming up engine |
- |
Tester Display |
---|
Coolant Temperature |
Result |
Proceed to |
---|---|
The Data List values of the ECUs do not match |
A |
The Data List values of the ECUs match |
B |
HINT:
A |
REPLACE ECM |
B |
REPLACE COMBINATION METER ASSEMBLY |
Toyota CH-R Service Manual > Immobiliser System(w/ Smart Key System): Registration
REGISTRATION
PROCEDURE
1. CAUTION REGARDING INTERFERENCE WITH ELECTRONIC DEVICES
CAUTION:
People with implantable cardiac pacemakers, cardiac resynchronization
therapy-pacemakers or implantable cardioverter defibrillators should keep
away from the smart key system antennas. The r ...
Toyota CH-R Service Manual > Smart Key System(for Entry Function): Back Door Entry Lock Function does not Operate
DESCRIPTION
If the entry lock function does not operate for the back door only, but the entry
unlock function operates, the request code is being transmitted properly from the
back door. In this case, there may be a problem related to the lock switch (connection
between the back door opener s ...