9-5 Sport Wagon (9600) V6-3.0L Turbo (B308) (2003)
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The acceleration sensor comprises three capacitor plates. One of these capacitor plates is freely suspended between the two fixed plates. The forces of
acceleration that arise when the car moves sideways cause the swinging plate to move. This changes the capacitance and an electrical signal is
produced. This signal provides the control module with information about the car's lateral movement.
Diagnostics
The yaw rate sensor monitors its own internal functions via the ESP control module. The electronic unit performs self-diagnosis every 20
milliseconds. A DTC is generated if a faulty or improbable signal is produced by the yaw rate sensor, or if there is an open circuit, short to ground or
short to a positive cable. The ESP, TCS and ESP OFF lamps will not come on.
Diagnostic help
Yaw rate sensor
The yaw rate sensor value can be read using the diagnostic tool. The reading should be 0°/s2 when the car is stationary. A DTC is generated if a faulty
or improbable signal is produced by the lateral acceleration sensor, or if there is an open circuit, short to ground or short to a positive cable.
The ESP, TCS and ESP OFF lamps will not come on.
Lateral acceleration sensor
The lateral acceleration sensor value can be read using the diagnostic tool. The reading should be 0°/s2 when the car is stationary.
