Component Tests and General Diagnostics
ON-VEHICLE INSPECTION1. INSPECT SPEEDOMETER
a. Check the operation.
1. Using a speedometer tester, check the speedometer indication according to the table.
NOTE: Tire wear, as well as over or under inflation will cause errors.
2. Check the deviation from the acceptable value of the speedometer indication.
Reference: Below 0.5 km/h (0.3mph)
2. INSPECT OUTPUT SIGNAL OF VEHICLE SPEED
a. Check for the signal.
1. While driving the vehicle at 10 km/h, check the voltage between the terminal C9-1 and C9-18 of the combination meter assembly.
Standard: Fluctuation between 7.7 to 14 V or less is repeated 7 times within 1 sec.
NOTE: Check it with the ignition switch turned to the ON position and the connector connected.
3. INSPECT TACHOMETER
a. Check operation.
1. Connect the tune-up test tachometer, and start the engine.
NOTE:
- 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 subject it to heavy shocks.
2. Compare the result of the test with the standard indication.
4. MAINTENANCE LIQUID RESETTING PROCEDURE
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 off during reset procedure, reset mode is canceled.
- If the reset switch is pushed off during the reset procedure, reset mode is canceled and the display shows the condition prior to the reset procedure.