3000GT SL V6-2972cc 3.0L DOHC MFI (1997)
Cranking Signal: Testing and Inspection
Manual Transmission
OPERATION
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The ignition switch (MTX) inputs a high signal to the engine control module while the engine is cranking. The engine control module provides
fuel injection control, etc., at engine start-up based on this signal.
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When the ignition switch is set to START, the battery voltage at cranking is applied through the ignition switch to the engine control module,
which detects that the engine is cranking.
INSPECTION
Using Scan Tool
HARNESS INSPECTION
STEP 1: Measure the input voltage to the engine control module.
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Engine control module connector: Disconnected
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Ignition switch: START
Voltage: 8 or more V
OK: GO TO STEP 2
NG: Repair the harness. (71-Ignition switch)
STEP 2: Check for continuity of the ground circuit.
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Engine control module connector: Disconnected
OK: STOP
NG: Repair the harness. (91-Ground)