Test Point 2

DTC 12

Lateral Acceleration Sensor, Short-Circuit/ Discontinuity

Wiring between control unit and lateral acceleration sensor not in working order (discontinuity, short circuit to plus or short circuit to ground), or the lateral acceleration sensor itself is damaged.

The following wiring is installed:

- Power supply to sensor (5 volt) = PIN 15 at control unit - PIN 3 at sensor.

- Ground for sensor = PIN 9 at control unit - PIN 1 at sensor.

- Signal from sensor to control unit (2.7 ± 0.14 volt with car in normal-load position) = PIN 34 at control unit - PIN 2 at sensor.

1. Check power supply (approx. 5 volt) at the sensor plug after detaching it, with the ignition switched on. PIN 1 (-) and PIN 3 (+).





Note: The sensor is located under the left-hand seat.

2. Check for discontinuity or short circuit to ground at the wire between PIN 2 at the sensor plug and PIN 34 at the control unit plug after this has been detached.





3. Connect the plug to the sensor. Check the installation position of the sensor and its function by testing the output signal. To make this check, connect the 55-pin ABS 2-LED adapter lead to the control unit plug. Connect the multimeter to sockets B and C. For the measuring procedure and nominal values, Lateral Acceleration Sensor