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P0733 Gear 3 Incorrect Ratio

AutoHex Online Help: Hyundai TUCSON(JM) 2006
Component Location
General Description

The value of the input shaft speed should be equal to the value of the output shaft speed, when multiplied by the 3rd gear ratio, while the transaxle is engaged in the 3rd gear. For example, if the output speed is 1,000 rpm and the 3rd gear ratio is 1.000, then the input speed is 1,000 rpm.



DTC Description

This code is set if the value of input shaft speed is not equal to the value of the output shaft, when multiplied by the 3rd gear ratio, while the transaxle is engaged in 3rd gear. This malfunction is mainly caused by mechanical troubles such as control valve sticking or solenoid valve malfuctioning rather than an electrical issue.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

? 3rd gear incorrect ratio

? Faulty Input speed sensor

? Faulty output speed sensor

? Faulty UD clutch or OD clutch

Enable Conditions

? Engine speed >450rpm

? Output speed >900rpm

? Shift stage 3rd. gear

? Input speed >0rpm

? A/T oil temp sensor voltage <4.5V

? Voltage of Battery >10V

? TRANSAXLE RANGE SWITCH is normal

Threshold Value

? | Input speed/3rd gear ratio - output speed| =200rpm/3rd. gear ratio

Diagnostic Time

? More than 1sec

Fail Safe

? Locked into 3rd gear. (If diagnosis code P0733 is output four times, the transaxle is locked into 3rd gear)

Signal Waveform