Meter / Gauge System

METER: METER / GAUGE SYSTEM: ON-VEHICLE INSPECTION

ON-VEHICLE INSPECTION

1. INSPECT SPEEDOMETER
(a) Check the operation.
(1) Using a speedometer tester (calibrated chassis dynamometer), check the speedometer indication according to the below.

Reference





NOTICE: Tire wear as well as over or under inflation will cause errors.
(2) Check the deviation from the acceptable range of the speedometer indication.
Reference:
Less than 0.5 km/h (0.3 mph)
If the indication is not as specified, go to problem symptoms table Problem Symptoms Table.
2. INSPECT OUTPUT SIGNAL OF VEHICLE SPEED





(a) Check the output signal waveform.
(1) Remove the combination meter, with the connector still connected.
(2) Using an oscilloscope, check the waveform of the combination meter.





OK:
Refer to the illustration.
HINT: As vehicle speed increases, the cycle of the waveform narrows.

3. INSPECT TACHOMETER
(a) Check operation.
(1) Connect a tune-up test tachometer, and start the engine.
NOTICE:
- 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 indications and vehicle tachometer indications under the following conditions:

- Vehicle battery voltage is 13.5 V
- Ambient temperature is 25°C (77°F)

OK





If the indication is not as specified, go to the problem symptoms table Problem Symptoms Table.





4. INSPECT FUEL SENDER GAUGE ASSEMBLY
(a) Disconnect the F9 gauge connector.
(b) Turn the ignition switch to the ON position, and then check the position of the receiver gauge needle.
OK:
Fuel receiver gauge indicates E
(c) Connect terminals 2 and 3 of the wire harness side connector.
(d) Turn the ignition switch to the ON position, and then check the position of the receiver gauge needle.
OK:
Fuel receiver gauge indicates F
If the result is not as specified, the combination meter may have a malfunction.





5. INSPECT FUEL LEVEL WARNING LIGHT
(a) Disconnect the F9 pump and gauge connector.
(b) Turn the ignition switch to the ON position, and then check that the fuel receiver gauge indicates E and that the fuel level warning light turns on.
OK:
Fuel level warning light turns on
If the result is not as specified, the combination meter may have a malfunction.





6. INSPECT ENGINE COOLANT TEMPERATURE RECEIVER GAUGE
(a) Disconnect the E2 gauge connector.
(b) Turn the ignition switch to the ON position, and check the position of the receiver gauge needle.
OK:
Needle position is on (COOL).
(c) Connect between terminals of the wire harness side connector, and then check the position of the receiver gauge needle.
OK:
Needle position is on (HOT).





7. INSPECT OIL PRESSURE WARNING LIGHT
(a) Disconnect the E3 switch connector.
(b) Connect the E3-1 terminal of the wire harness side connector to the body ground.
(c) Turn the ignition switch to the ON position, and then check that the low oil pressure warning light turns on.
OK:
Low oil pressure warning light turns on
If the result is not as specified, the combination meter may have a malfunction.
8. INSPECT BRAKE WARNING LIGHT





(a) Check the parking brake warning light.
(1) Disconnect the P6 switch connector.
(2) Connect the P6-1 terminal of the wire harness side connector to the body ground.
(3) Turn the ignition switch to the ON position, and then check that the warning light turns on.
OK:
Warning light turns on.





(b) Check the brake fluid level warning light.
(1) Disconnect the B2 switch connector.
(2) Connect the B2-1 and B2-2 terminals of the wire harness side connector.
(3) Turn the ignition switch to the ON position, and then check that the warning light turns on.
OK:
Warning light turns on.
If the result is not as specified, the combination meter may have a malfunction.
9. OIL MAINTENANCE INDICATOR RESETTING PROCEDURE

Indicator Condition:





(a) Turn the ignition switch to the ON position.
(b) Set the display window to ODO.
(c) Turn the ignition switch off.
(d) Turn the ignition switch to the ON position while pressing and holding the reset knob for 5 seconds or more.
(e) Reset procedure is completed.
HINT:
- If the ignition switch is turned off during reset procedure, reset mode is canceled.
- If the reset knob is turned off during the reset procedure, reset mode is canceled and the display shows the condition prior to the reset procedure.