Component Tests and General Diagnostics

METER: METER / GAUGE SYSTEM: ON-VEHICLE INSPECTION

1. CHECK SPEEDOMETER

(a) Check the operation.

(1) Connect the Techstream to the DLC3 connector.

(2) Turn the ignition switch ON

(3) Turn the Techstream on.

(4) Enter the following menus: Chassis / ABS/VSC/TRAC / Data List.

(5) According to the display on Techstream, read the "Data List."













* *1: for 2GR-FE

* *2: Data in ( ) is for reference

CAUTION:
Do not use worn, underinflated or overinflated tires, as the speedometer reading will be inaccurate.

(6) Check the deflection width of the speedometer indicator.

Reference:

Below 0.5 km/h (0.3 mph)

2. CHECK OUTPUT SIGNAL OF VEHICLE SPEED SENSOR





(a) Check the output signal waveform.

(1) Remove the combination meter, but do not disconnect the connector.

(2) Connect an oscilloscope to terminal E19-39 and the body ground.

(3) Start the engine.

(4) Check the signal waveform according to the condition(s) in the table below.





OK:

Waveform is as shown in the illustration.

HINT
As the vehicle speed increases, the cycle of the signal waveform narrows.

3. CHECK TACHOMETER

(a) Check the operation.

(1) Connect the tune-up test tachometer, and start the engine.

CAUTION:
* Reversing the connection of the tachometer will damage the transistors and the insides of the diodes.
* When removing or installing the tachometer, be careful not to drop or strike it.
(2) Compare the result of the test with the standard indication.

°°






4. CHECK FUEL RECEIVER GAUGE





(a) Disconnect the connector from the sender gauge.

(b) Turn the ignition switch ON, then check the position of the receiver gauge needle.

OK:

Needle position is on EMPTY.

(c) Connect terminals 1 and 2 on the wire harness side connector of the fuel sender gauge.

(d) Turn the ignition switch to ON, then check the position of the receiver gauge needle.

OK:

Needle position is on FULL.

5. CHECK FUEL LEVEL WARNING LIGHT

(a) Disconnect the connector from the sender gauge.

(b) Turn the ignition switch to ON, check that the fuel level needle indicates EMPTY and fuel level warning light comes on.

OK:

Fuel level warning light comes on.

6. CHECK BRAKE WARNING LIGHT

(a) Inspect the parking brake warning light.

(1) Disconnect the connector from the parking brake switch.

(2) Turn the ignition switch to ON.

(3) Ground the terminal of the wire harness side connector, and then check that the parking brake warning light illuminates.

OK:

Parking brake warning light illuminates.

7. CHECK OIL PRESSURE WARNING LIGHT

(a) Disconnect the connector from the engine oil pressure switch.

(b) Turn the ignition switch to ON.

(c) Ground the terminal of the wire harness side connector, then check the engine oil pressure warning light.

OK:

Engine oil pressure warning light comes on.

8. CHECK WASHER LEVEL WARNING SWITCH

(a) Disconnect the connector from the washer level warning switch.

(b) Turn the ignition switch to ON.

(c) Ground the terminal of the wire harness side connector, then check the washer level warning light.

OK:

Washer level warning light comes on.