The HECU monitors the operation of the valves by checking the solenoid circuit voltage and sets this code if an incorrect voltage is detected.
Item | Detecting Condition | Possible cause | |
Case 1 | DTC Strategy |
•
Solenoid valve open, short to ground check | 1. Faulty HECU |
Enable Conditions |
•
If the valve relay is switched ON and corresponding solenoid driver OFF, Vsol is lower than 2.0V for 0.06sec
•
If the valve relay is switched OFF and corresponding solenoid driver ON, Vsol is higher than 1.4V for 0.06sec ※ Vsol : The voltage of solenoid valve | ||
Case 2 | DTC Strategy |
•
Solenoid valve short to battery, leakage current check | |
Enable Conditions |
•
If the valve relay is switched ON and corresponding solenoid driver ON, Isol is higher than 8.5±2.5A for 60msec. ※ Isol : The current of solenoid valve | ||
Fail Safe |
•
All functions are inhibited | ||
MIL |
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The ABS/EBD/ESP(ESC) warning lamp is activated. | ||
Reset Condition |
•
Normal after IG turned on again | ||
