On-Vehicle Inspection

ON-VEHICLE INSPECTION

1. INSPECT SPEEDOMETER
a. Check the operation.




1. Using a speedometer tester, inspect the speedometer for allowable indication error and check the operation of the odometer.

NOTE: Tire wear and tire over or under inflation will increase the indication error.

2. Check the deflection width of the speed meter indicator.

Reference: Below 0.5 km/h (0.3 mph)

2. INSPECT OUTPUT SIGNAL OF VEHICLE SPEED




a. Check the input signal wave form.
1. Remove the combination meter with connectors still connected.
2. Connect the oscilloscope to terminal C6-27 and body ground.
3. Start the engine.







4. Check the signal wave form according to the condition(s) in the table.

OK: As shown in the illustration

HINT: As vehicle speed increases, the cycle of the signal wave form narrows.

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

NOTE:
- Reversing the connection of the tachometer will damage the transistors and diodes inside.
- When removing or installing the tachometer, be careful not to drop or subject it to heavy shocks.




2. Compare the test and tachometer indications.
DC 13.5 V, 25°C at (77°F)




4. INSPECT FUEL RECEIVER GAUGE
a. Inspect the circuit.
1. Disconnect the connector from the sender gauge.
2. Turn the ignition switch ON, then check the position of the receiver gauge needle.

OK: Needle position is on (EMPTY).

3. Connect terminals 2 and 3 on the wire harness side connector and turn the ignition switch ON, then check the position of the receiver gauge needle.

OK: Needle position is on (FULL).

5. INSPECT FUEL LEVEL WARNING
a. Inspect the circuit.
1. Disconnect the connector from the sender gauge.
2. Turn the ignition switch ON, check the fuel level needle indicates EMPTY and fuel level warning lights light on.

OK: Fuel level warning light comes on.

6. INSPECT WATER TEMPERATURE RECEIVER GAUGE
a. Inspect the circuit.
1. Disconnect the connector from the sender gauge.
2. Turn the ignition switch ON, check the position of the water temperature receiver gauge needle.

OK: Needle position is on (COOL).

3. Connect between terminals on the wire harness side connector, then check the position of the water temperature receiver gauge needle.

OK: Needle position is on (HOT).

7. INSPECT LOW OIL PRESSURE WARNING LIGHT
a. Inspect the circuit.
1. Disconnect the connector from the low oil pressure switch.
2. Turn the ignition switch ON.
3. Connect the terminal of wire harness side connector and ground, then check the warning low oil pressure warning light.

OK: Low oil pressure warning light comes on.

8. INSPECT BRAKE WARNING LIGHT
a. Inspect the parking brake warning light.
1. Disconnect the connector from the parking brake switch.
2. Turn the ignition switch ON.
3. Ground the terminal of the wire harness side connector, then check the parking brake warning light.

OK: Brake warning light comes on.

b. Inspect the brake fluid level warning light.
1. Disconnect the connector from the brake fluid level warning switch.
2. Turn the ignition switch ON.
3. Connect a terminal to the other terminal of the wire harness side connector, then check the brake fluid level warning switch.

OK: Brake warning light comes on.

9. INSPECT BRAKE FLUID LEVEL WARNING SWITCH
a. Remove the reservoir tank cap and strainer.
b. Disconnect the connector.
c. Measure the resistance between the terminals.

Standard: Float up (switch off): 10 kOhms or higher

d. Use a syphon, etc. to take fluid out of the reservoir tank.
e. Measure the resistance between the terminals.

Standard: Float down (switch on): Below 1 Ohm

f. Pour the fluid back in the reservoir tank.




10. MAINTENANCE LIQUID RESETTING PROCEDURE Indicator Condition:
a. Set the display window to ODO.
b. Turn the ignition switch off.
c. Pressing the reset switch, turn the ignition switch to the ON position (keep pressing for at least 5 seconds.)
d. Reset procedure is completed.

HINT:
- If the ignition switch is turned off during the reset procedure. LCD: off IND: off
- If the reset switch is pressed off during the reset procedure. LCD: return to ODO IND: Keep the previous state of reset