How many ohms should a speed sensor read?
The typical reading for a passive wheel speed sensor is between 1,000 and 2,500 ohms. This is a normal range for all passive sensors. The specification for active sensors is between 1,000 and 2,500 ohms.
How do you test a speed sensor with an ohm meter?
Vehicle Speed Sensor Testing
- Turn the ignition switch to the OFF position.
- Disengage the wiring harness connector from the VSS.
- Using a Digital Volt-Ohmmeter (DVOM), measure the resistance (ohmmeter function) between the sensor terminals. If the resistance is 190–250 ohms, the sensor is okay.
What is the resistance of a wheel speed sensor?
A wheel speed sensor and circuit will usually have a resistance of 800 to 1400 ohms. Measure the resistance across the sensor itself if it has too much resistance.
What Should the resistance be on a ABS sensor?
On a passive ABS sensor, measuring resistance across the signal and ground leads generally produces a reading of 800-2000 ohms. A steady reading within this range indicates a good sensor. If the resistance is constantly changing or increasing on the meter, the sensor is faulty.
What kind of shaft speed sensor do I Need?
The ST420 is a 2-wire, loop-powered, 4-20 mA analog output shaft speed sensor in a rugged stainless steel M18x1 housing; UL Listed Intrinsically Safe (IS) for Class I Division I and Class II Division I hazardous locations. The stainless steel Hall Effect sensor provides a square-wave pulse frequency output, NPN open-collector.
What should resistance be for VSS speed sensor?
Disengage the wiring harness connector from the VSS. Using a Digital Volt-Ohmmeter (DVOM), measure the resistance (ohmmeter function) between the sensor terminals. If the resistance is 190–250 ohms, the sensor is okay. Vehicle Speed Sensor Replacement REMOVAL & INSTALLATION(older models)
How are speed sensors used in the PCM?
The PCM may use other sensors on the vehicle (ABS Wheel Speed) to validate VSS operation. VSS information is used to calculate vehicle loads including: torque converter application, cruise control, fuel cutoff/speed governance strategies, instrument panel speedometer and more.