C1203: Wheel Speed Sensor Front-RH Open/Short: DTC Detecting Condition
DTC DETECTING CONDITION CHART
| Item |
Detecting Condition |
Possible Cause |
| DTC Strategy |
- Sensor Signal Current Monitoring
|
- Open or short of Wheel speed sensor circuit (FL, FR, RL, RR)
- Faulty Wheel speed sensor (FL, FR, RL, RR)
- Faulty HECU
|
| Monitoring Period |
- Continuously (once per loop) if supply voltage is not below 8.0±0.5V.
|
| Enable Conditions |
- A failure is detected if the measured sensor signal current is continuously out of the specified range of about 4.5mA ±10% < Sensor Signal Current < 20mA ±10% for 19 loops(133ms).
|
| Fail Safe |
- Sensor failure when ABS is inactive
- Single wheel speed sensor failure
The ABS/TCS/ESC functions are deactivated.
The ABS/TCS/ESC warning lamps are activated and the EBD warning lamp is not activated.
- Multiple wheel speed sensor failure
The EBD/ABS/TCS/ESC functions are deactivated.
The EBD/ABS/TCS/ESC warning lamps are activated.
- Sensor failure during active ABS control
- One front wheel speed sensor failure
Deactivate ABS on affected wheel.
After active ABS control, deactivate all control functions but EBD on completion of ABS cycle.
- One rear wheel speed sensor failure
Reduce brake pressure on rear axle.
After active ABS control, deactivate all control functions but EBD on completion of ABS cycle.
- Multiple wheel speed sensor failure
The EBD/ABS/TCS/ESC functions are deactivated.
The EBD/ABS/TCS/ESC warning lamps are activated.
|