240SX Coupe L4-2.4L (KA24DE) (1997)
Shift Solenoid: Description and Operation
DESCRIPTION
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This is one of the items indicated by the MIL.
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This malfunction will not be detected while the O/D OFF indicator lamp is indicating another self-diagnosis malfunction.
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This malfunction is detected when the A/T does not shift into fourth gear position or the torque converter clutch does not lock up as instructed by
the A/T control unit. This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such as control valve
sticking, improper solenoid valve operation, malfunctioning oil pump or torque converter clutch, etc.