3000GT VR-4 AWD V6-2972cc 3.0L DOHC MFI Twin Turbo (1998)
ABS Braking Signal: Testing and Inspection
OPERATION
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The anti-lock braking signal is input to the engine control module from the anti-lock braking system (ABS) control module as a signal to indicate
whether or not the motor relay is activated. Based on this signal, the engine control module controls the idle air control motor to secure effective
anti-lock braking.
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When the motor relay is activated, the ABS control unit turns ON the power transistor, short-circuiting the terminal to ground. This causes the
anti-lock braking signal to go from high to low.
HARNESS INSPECTION
Check for an open-circuit or a short-circuit to ground, between the ABS control unit and the engine control module.
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ABS control unit connector: Disconnected
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Engine control module connector: Disconnected
OK: STOP
NG: Repair the harness. (A28-66)
