Meter, Gauge, Indicator Unit
Check 3-15: Tachometer Inspection
Connect the leads in the same circuit as Check 3-1.
The engine speed (rpm) equivalent to the input frequency
is indicated in the oscillator [A], if the square wave is input
into terminal .
Indicates approximately 6 000 rpm if the input frequency
is approximately 200 Hz.
If the meter function does not work, replace the meter unit.
Disconnect the terminal .
Check that the tachometer needle [A] back to the mini-
mum (0) position.
If the meter unit does not work, replace the meter unit.
Check 3-16: Other Inspection
The following items are displayed while running.
When the above item is faulty indication check the follow-
Wiring (see Meter Circuit)
Fuel Injectors (see Fuel Injectors (Service Code 41, 42,
43, 44) section in the Fuel System (DFI) chapter)
Speed Sensor (see Speed Sensor (Service Code 24)
section in the Fuel System (DFI) chapter)
Crankshaft Sensor (see Crankshaft Sensor Inspection)
If the above items are good, replace the meter unit and/or
ELECTRICAL SYSTEM 16-81