Meter Gauge System

ON-VEHICLE INSPECTION

1. CHECK SPEEDOMETER

a. Check operation.







1. Using a speedometer tester, check that the speedometer reading is within the allowable range shown in the table below. Also, check for proper operation of the odometer.

If the result is not as specified, the speedometer may have a malfunction.

2. CHECK SPEEDOMETER
a. While driving the vehicle at the speed of 10 km/h (6 MPH), check the voltage between the terminals of the combination meter assembly.

Standard voltage:
Fluctuation between 10 to 14 V or less is repeated 7 times within 1 second.

3. CHECK TACHOMETER
a. Check operation.
1. Connect a tune-up test tachometer, and start the engine.

NOTE:
- Do not reverse the connections of the tachometer. This will damage its transistors and diodes.
- When removing or installing the tachometer, be careful not to drop or strike it.




2. Compare the test tachometer values and vehicle tachometer values under the following conditions:
- Vehicle battery voltage is 13.5 V
- Ambient temperature is 25 degrees C (77 degrees F)

If the result is not specified, the tachometer may have a malfunction.

4. CHECK LOW OIL PRESSURE WARNING LIGHT

a. Disconnect the connector from the low oil pressure switch.
b. Turn the ignition switch ON.
c. Connect the terminal of wire harness side connector and ground, then check the warning light.

OK: Warning light turns on.

5. CHECK PARKING BRAKE WARNING LIGHT
a. Disconnect the connector from the parking brake switch and ground terminal on the wire harness side connector.
b. Turn the ignition switch ON and check that the warning light lights up.

6. CHECK BRAKE WARNING LIGHT




a. Disconnect the connector from the brake fluid level warning switch and ground terminal on the wire harness side connector.
b. Turn the ignition switch ON and check that the warning light lights up.

7. CHECK BRAKE FLUID LEVEL WARNING SWITCH
a. Remove the reservoir tank cap and retainer.
b. Disconnect the connector.
c. Check that continuity exists between the terminals.
d. Use a siphon, etc.., to take fluid out of the reservoir tank.
e. Check that continuity exists between terminals.
f. Pour the fluid back in the reservoir tank.

8. CHECK OPEN DOOR WARNING LIGHT
a. Disconnect the connector from the driver door courtesy switch and ground terminal on the wire harness side connector.
b. Turn the ignition switch ON and check that the warning light lights up.

9. CHECK SEAT BELT WARNING BUZZER
a. Disconnect the C13, C14 and C15 meter connectors.
b. Connect the positive (+) lead from the battery terminal C13-12 and negative (-) lead terminal C15-16.
c. Check that the buzzer stop after 4 to 8 seconds.
d. Check that the buzzer stops when connecting the terminal C14-11 to the GND.

OK: Buzzer sound operates.

10. CHECK KEY UNLOCK WARNING BUZZER
a. Disconnect the C13 and C15 meter connectors.
b. Connect the positive (+) lead from the battery terminal C13-12 and negative (-) lead terminal C15-16.
c. Connect the negative (-) lead from the battery terminal C15-9 and C15-10, check that the buzzer sound.

OK: Buzzer sound operates.

11. CHECK SEAT BELT WARNING LIGHT
a. Disconnect the B5 switch connector.
b. Connect the B5-2 terminal of the wire harness side connector to the body ground.
c. Turn the ignition switch ON, and check that the warning light turns on.

OK: Warning light turns on.

12. CHECK ENGINE COOLANT TEMPERATURE RECEIVER GAUGE OPERATION
a. Disconnect the connector from the sender gauge.




b. Turn the ignition switch ON and check that the receiver gauge needle in on the cool side.




c. Ground the terminal on the wire harness side connector through a 3.4 W test bulb.
d. Turn the ignition switch ON, and check that the bulb comes on and the receiver gauge needle moves to the hot side.

If operation is as specified, replace the sender gauge. Then recheck the system.
If operation is not as specified, measure the receiver gauge resistance.

13. CHECK ENGINE COOLANT TEMPERATURE SENSOR GAUGE RESISTANCE







a. Connect the wire harness as shown in the illustration, and enter the value using the formula. Check the that resistance is within the values in the table.

If resistance value is not as specified, replace the engine coolant temperature sender gauge.

14. CHECK OIL PRESSURE RECEIVER GAUGE OPERATION




a. Disconnect the connector from the sender gauge.
b. Apply battery positive voltage to the sender gauge terminal through a test LED.
c. Check that the bulb does not light up when the engine is stopped.
d. Check that the LED flashes when the engine is running. The number of flashes should vary according to engine speed.




e. Turn the ignition switch ON and check that the receiver gauge needle is on the LOW side.




f. Ground the terminal on the wire harness side through a 3.4 W test bulb.
g. Turn the ignition switch ON, and check that the bulb lights up and the receiver gauge needle moves to the HIGH side.