The vehicle speed sensor outputs pulse-signals according to the revolutions of the output shaft of the transmission. The TCM determines the vehicle speed by counting the frequency of the pulses. This value is mainly used, by the TCM, as comparison data for determining malfunctions of the OUTPUT SPEED SENSOR.
The TCM calculates the vehicle speed based on the frequency of the pulses. If the calculated value from this sensor does not agree with the value determined by the OUTPUT SPEED SENSOR(PGB) , the TCM sets this code.
Item | Detecting Condition & Limp Home | Possible Cause |
DTC Strategy | ● Range check | ● Open or short circuit ● Defective VEHICLE SPEED SENSOR ● Defective TCM |
Enable Conditions | ● A/T temp. sensor voltage <4.5V A/T range switch D,SP Output speed >900rpm | |
Threshold Value | ● Vehicle Speed no signal change | |
Diagnostic Time | ● More than 30sec | |
Fail Safe | ● Because VehicleSpeed is 0 km/h it is impossible for input and output Sensor to check |
