 DTC DETECTION LOGIC
NOTE:
DTC No.
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Trouble diagnosis name
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DTC detecting condition
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Possible cause
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P1574
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ASCD vehicle speed sensor
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The difference between the two vehicle speed signals is out of the specified range.
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- Harness or connectors
(The CAN communication line is open or shorted.)
- Combination meter
- ABS actuator and electric unit (control unit)
- Wheel sensor
- TCM
- ECM
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 DTC CONFIRMATION PROCEDURE
 1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test. - Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
>>GO TO 2.
 2.PERFORM DTC CONFIRMATION PROCEDURE
- Start engine (VDC switch OFF).
- Drive the vehicle at more than 40 km/h (25 MPH).
■ CAUTION ■ Always drive vehicle at a safe speed.
NOTE: This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle.
- Check DTC.
Is DTC detected?
YES >>Go to Diagnosis Procedure (GT-R certified NISSAN dealer). NO >>INSPECTION END
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