The Output Speed Sensor outputs pulse-signals according to the revolutions of the output shaft of the transmission. The Output Speed Sensor is installed in front of the Transfer Drive Gear to determine the Transfer Drive Gear rpms by counting the frequency of the pulses. This value, together with the throttle position data, is mainly used to decide the optimum gear position.
The TCM sets this code if the calculated value of the pulse-signal is noticeably different from the value calculated, using the Vehicle Speed Sensor output, when the vehicle is running faster than 30 km/h. The TCM will initiate the fail safe function if this code is detected.
Item
Detecting Condition
Possible Cause
DTC Strategy
Speed rationality check
Signal circuit is open or short
Sensor power circuit is open
Sensor ground circuit is open
Faulty OUTPUT SPEED SENSO
Faulty PCM
Enable Conditions
Battery Voltage = 10V
Lever position : D,3,2,L
State of brake : OFF
Threshold Value
Output speed = 0 while driving
Diagnostic Time
More than 1sec
Fail Safe
Locked into 3rd or 2nd gear.
Apply an electric current to Solenoide valve
Manual shifting is possibe(2 nd ? 3 rd ,3 rd ? 2 nd)
Input shaft & Output shaft speed sensor
Type : Hall sensor
Current consumption : 22mA(MAX)
Sensor body and sensor connector have been unified as one.
Fig 1) OUTPUT SIGNAL ? LOW SPEED
Fig 2) OUTPUT SIGNAL ? HIGH SPEED