3000GT V6-3.0L SOHC (1998)
(2) Connect the probe to the oscilloscope pick-up point as shown in the circuit diagram and check the waveform.
HARNESS INSPECTION
Measure the power supply voltage.
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Connector: Disconnected
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Ignition: switch ON
Voltage (V): Battery positive voltage
OK: GO TO STEP 2
NG: Repair the harness. (A3 - MFI relay)
Check for continuity of the ground circuit
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Connector: Disconnected
OK: GO TO STEP 3
NG: Repair the harness. (A4 - Ground)
Check the voltage of the output circuit
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Connector: Disconnected
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Ignition switch: ON
Voltage (V): 4.8 - 5.2
OK: STOP
NG: Repair the harness. (A2 - 50)