Stuck in deceleration sensor

The skid control ecu receives signals from the yaw rate and deceleration sensor via the can communication system.

The yaw rate sensor has a built-in deceleration sensor and detects the vehicle's condition using 2 circuits (gl1: g sensor 1, gl2: g sensor 2).

If there is trouble in the bus lines between the yaw rate and deceleration sensor and the can communication system, dtc u0123/62 (malfunction in can communication with the yaw rate sensor) and u0124/95 (malfunction in can communication with the deceleration sensor) are output.

These dtcs are also output when the calibration has not been completed.

Dtcs c0371/71 and c1279/79 are deleted when the yaw rate and deceleration sensor sends a yaw rate and/or deceleration signal or test mode ends. Dtcs c0371/71 and c1279/79 are output only in test mode.

Refer to dtc c1210/23, c1336/39 (see page bc-89).

When replacing yaw rate and deceleration sensor, perform zero point calibration (see page bc- 24).

When dtc u0123/62, u0124/95 or u0126/63 is output together with dtc c1232/32, c1234/34, c1243/ 43, c1244/44, c1245/45, or c1387/97, inspect and repair the trouble areas indicated by dtc u0123/62, u0124/95 or u0126/63 first.

1. 1
   Check dtc
2. 2
   Clear the dtc (see page bc-47).
3. 3
   Turn the ignition switch off.
4. 4
   Turn the ignition switch on again and check that no can communication system dtc(s) is output.
5. 5
   Drive the vehicle at a speed of 30 km/h or more and check that no dtcs are output.

Result

1. 1
   Check yaw rate sensor installation
2. 2
   Check that the yaw rate sensor has been installed correctly (see page bc-211).

Ok: the sensor is tightened to the specified torque.

3. Check wire harness (yaw rate sensor - battery and body ground)

1. 1
   Disconnect the k6 sensor connector.
2. 2
   Measure the voltage of the wire harness side connector.

Standard voltage

3. Measure the resistance of the wire harness side connector.

Standard resistance