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Symptom List: P0500-VEH. SPEED SENSOR PEC FREQUENCY TOO HIGH Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0500-VEH. SPEED SENSOR When Monitored and Set Condition: P0500-VEH. SPEED SENSOR PEC FREQUENCY TOO HIGH When Monitored: With the engine running. Set Condition: The ECM detects a vehicle speed greater than 220 km/h (137 MPH). P0500-VEH. SPEED SENSOR PLAUSIBILITY When Monitored: With the engine running. Set Condition: The ECM compares the amount of fuel the fuel quantity actuator is delivering to the vehicle speed from the vehicle speed sensor (VSS). The VSS indicates a P0500-VEH. SPEED SENSOR SRC HIGH EXCEEDED When Monitored: With the engine running. Set Condition: The ECM detects a vehicle speed greater than 220 km/h (137 MPH). POSSIBLE CAUSES VEHICLE SPEED SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND POWERTRAIN CONTROL MODULE - 5-VOLT SUPPLY HIGH POWERTRAIN CONTROL MODULE - AFTER 5-VOLT SUPPLY SHORTED TO VOLTAGE REPAIR THE 5-VOLT SUPPLY CIRCUIT AND CHECK THE PCM INTERMITTENT CONDITION 5-VOLT SUPPLY CIRCUIT OPEN POWERTRAIN CONTROL MODULE - SHORTED TO VOLTAGE SPEEDOMETER PINION AND DRIVE TEETH DAMAGED VEHICLE SPEED SENSOR SIGNAL CIRCUIT SHORTED TO 5-VOLT SUPPLY CIRCUIT 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND ENGINE CONTROL MODULE - SHORTED TO VOLTAGE VEHICLE SPEED SENSOR SIGNAL CIRCUIT OPEN 5-VOLT SUPPLY CIRCUIT SHORTED TO SENSOR GROUND 71 DRIVEABILITY - DIESEL |