DTC C2112 Valve Relay Error: DTC Detecting Condition
DETECTING CONDITION AND POSSIBLE CAUSE
| Item |
Detecting Condition |
Possible cause |
| DTC Strategy |
- Battery Voltage Monitoring
|
- Open or short of power supply circuit (ABS2)
- Faulty HECU
|
| Case1 |
Monitoring Period |
- Continuously (once every 200 to 300 ms)
|
| Enable Conditions |
- If the valve relay is switched off and the reference voltage of solenoid valve > 3V continuously for 56ms, the failure is detected.
- If the valve relay is switched on and the reference voltage of solenoid valve < 3V continuously for 56ms, the failure is detected.
|
| Case 2 |
Monitoring Period |
- Once after power-on reset, during the initialization of HECU (FMON and PCU)
|
| Enable Conditions |
- A failure is detected if the solenoid valve relay is activated although the solenoid valve relay activation shall be inhibited by the HECU (PCU or FMON).
|
| Fail Safe |
- Controller switch off. The ABS/EBD/TCS/ESC functions are inhibited.
- The ABS/EBD/TCS/ESC warning lamps are activated.
|