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 | Possible Cause | |
Case1 | DTC Strategy | ● Plausibility check | ● Open or short in harness ● Contact resistance in connectors ● Faulty wheel speed sensor |
Enable Conditions | ● Engine speed >2100 rpm ● Engine load >250 mg/rev. ● Coolant temperature > 60℃(140℉) ● 10V< Battery voltage <16V ● No fuel shut-off | ||
Threshold Value | ● Vehicle speed=0 with high engine speed and engine load | ||
Diagnostic Time | ● 60 seconds | ||
Case2 | DTC Strategy | ● Electrical check | |
Enable Conditions | ● Vehicle speed > 0 ● 10V< Battery voltage <16V | ||
Threshold Value | ● PCM detects abnormal input voltage of the signal circuit | ||
Diagnostic Time | ● 10 seconds |
