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V70R AWD L5-2.3L Turbo VIN 52 B5234T6 (1998)

Powertrain Management > Computers and Control Systems > Sensors and Switches - Computers and Control Systems > Vertical Acceleration Sensor > Component Information > Specifications > Page 3712

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Vertical Acceleration Sensor: Description and Operation

ACCELEROMETER

The Piezoelectric Accelerometer is used to detect unevenness in the road surface which is transferred to the engine via the sub-frame. When
unevenness exceeds a certain level the misfire diagnostic is switched OFF.

The accelerometer receives 5 V from the Engine Control Module (ECM). Its output signal is approx. 2.5 V for a stationary car. When there is vertical
movement the signal will oscillate around 2.5 V.

The Accelerometer is mounted on the sub-frame.

Powertrain Management > Computers and Control Systems > Sensors and Switches - Computers and Control Systems > Vertical Acceleration Sensor > Component Information > Specifications > Page 3712

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