DESCRIPTION
In this circuit, the meter CPU receives engine speed signals from the ECM using the CAN communication system (CAN No. 1 Bus). The meter CPU displays the engine speed calculated based on the data received from the ECM.
WIRING DIAGRAM
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 | ![]() |
GO TO CAN COMMUNICATION SYSTEM |
|
2. |
PERFORM ACTIVE TEST USING TECHSTREAM (TACHO 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) Check the operation by referring to the table below.
Combination Meter
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
---|---|---|---|
Tacho Meter Operation |
Tachometer |
0, 1000, 2000, 3000, 4000, 5000, 6000, 7000 (rpm) |
Confirm that the vehicle is stopped with the engine idling |
OK:
Tachometer indication is normal.
NG | ![]() |
REPLACE COMBINATION METER ASSEMBLY |
|
3. |
READ VALUE USING TECHSTREAM (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: Body Electrical / Combination Meter / Data List.
(e) Check the values by referring to the table below.
Combination Meter
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Engine Rpm |
Engine speed/Min.: 0 rpm, Max.: 12750 rpm |
650 to 750 rpm (When idling) |
If data received from the ECM exceeds the range that can be displayed on the meter, the meter continues to display the maximum value of the range. |
OK:
Engine speed displayed on the Techstream is almost the same as the tachometer indication.
NG | ![]() |
REPLACE COMBINATION METER ASSEMBLY |
|
4. |
READ VALUE USING TECHSTREAM (ENGINE SPEED) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Data List.
(e) Check the values by referring to the table below.
Engine and ECT
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Engine Speed |
Engine speed/Min.: 0 rpm, Max.: 16383.75 rpm |
650 to 750 rpm (When idling) |
- |
OK:
Engine speed displayed on the Techstream is almost the same as the Techstream indication (Body Electrical / Combination Meter / Data List).
Result |
Proceed to |
---|---|
OK |
A |
NG (for 2GR-FE) |
B |
NG (for 1AR-FE) |
C |
B | ![]() |
GO TO SFI SYSTEM (for 2GR-FE) |
C | ![]() |
GO TO SFI SYSTEM (for 1AR-FE) |
|
5. |
REPLACE ECM |
(a) Replace the ECM with a new or a known good one (See page
for 2GR-FE,
for 1AR-FE).
OK:
The operation of the tachometer returns to normal.
OK | ![]() |
END |
NG | ![]() |
REPLACE COMBINATION METER ASSEMBLY |
Installation
INSTALLATION
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the LH side and RH side.
The following procedure is for the LH side.
If the sensor rotor needs to be replaced, replace it together with the
front drive shaft assembly. ...
Precaution
PRECAUTION
1. PRECAUTION FOR DISCONNECTING THE BATTERY CABLE
NOTICE:
When disconnecting the cable from the negative (-) battery terminal, initialize
the following systems after the cable is reconnected.
System Name
See Procedure
...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Navigation System
DTC Code
Detection Item
See page
B1532
LVDS Signal Malfunction (from Extension Module)
B1551
HD Radio Tuner ...