DTC C1466/33: Rear Speed Sensor RH Circuit; DTC C1273/73: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274/74: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1467/34: Rear Speed Sensor LH Circuit: Description
The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU. These signals are used for ABS control.
DTCs C1273/73 and C1274/74 can be cleared when the speed sensor sends a wheel speed signal or when Test Mode ends. DTCs C1273/73 and C1274/74 are output only in Test Mode.
HINT:
When the connectors between the speed sensor and skid control ECU are connected, the following waveform is output.
| DTC Code | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1466/33 | 277 | At a vehicle speed of 10 km/h (6 mph) or more, an open or short signal occurs in the speed sensor circuit. |
|
| ↑ | 278 | More than one speed sensor circuit signal is abnormal. | ↑ |
| ↑ | 279 | Speed sensor circuit signal is open for 0.5 seconds or more. | ↑ |
| ↑ | 280 | A momentary interruption of the sensor signal from the speed sensor occurs 255 times or more. | ↑ |
| ↑ | 281 | Frequency of 2.4 kHz or more is input. |
|
| ↑ | 288 | Either of the following is detected:
|
|
| C1467/34 | 290 | At a vehicle speed of 10 km/h (6 mph) or more, an open or short signal occurs in the speed sensor circuit. |
|
| ↑ | 291 | More than one speed sensor circuit signal is abnormal. | ↑ |
| ↑ | 292 | Speed sensor circuit signal is open for 0.5 seconds or more. | ↑ |
| ↑ | 293 | A momentary interruption of the sensor signal from the speed sensor occurs 255 times or more. | ↑ |
| ↑ | 294 | Frequency of 2.4 kHz or more is input. |
|
| ↑ | 301 | Either of the following is detected:
|
|
| C1273/73 C1274/74 |
- | Detected only during Test Mode. |
|
HINT:
- DTCs C1466/33 and C1273/73 are for the rear speed sensor RH.
- DTCs C1467/34 and C1274/74 are for the rear speed sensor LH.