P0730
Read the instructions below then
start the fault diagnostic procedure.
Symptom:
Gear Function. Mechanical Fault.
Fault symptoms
CHECK GEARBOX warning lamp on.
TCM in Limp-Home mode.
Slip in the transmission.
Conditions
The difference between input speed and output speed (speed of the car) is more than 10% above the gear ratio for more than 5 seconds.
Diagnosis will not be performed if:
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1.
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The TCM is in Limp-Home mode.
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2.
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Car speed is below 25 km/h.
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3.
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The selector lever is in P, R or N.
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4.
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The accelerator position is less than 10%.
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5.
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The transmission fluid temperature is below 20°C.
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6.
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Less than 10 seconds has elapsed since shifting occurred.
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7.
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Engine speed is below 400 rpm.
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8.
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Diagnostic trouble code 0717 or 0722 has been generated.
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Diagnostic help
The control module calculates the ratio between input and output speed. For each gear there is a definite relationship, depending on the ratio. The fault indicates a mechanical malfunction. Wear in the gearbox may be the cause of abrupt shifting and an inoperative Lock-up function.
