If short to ground in control + circuit or short to power in control - circuit of VSA is detected, ECM sets DTC P201500. This fault might be caused by excessive current, insufficient supply power of VSA due to internal circuit of ECU error or stuck opened/closed VSA.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Voltage monitoring | 1. Open in control circuit of VSA 2. Short to ground in control (+) circuit of VSA 3. Short to power in control (-) circuit of VSA 4. Faulty VSA | ||
Enable Condition |
•
Engine running | |||
Threshold Value | Case 1 |
•
Short to power/ground in control circuit of VSA
•
Insufficient supply power of VSA (internal circuit of ECU error) | ||
Case 2 |
•
Stuck opened/closed VSA | |||
Detecting Time | Case 1 |
•
2 sec. | ||
Case 2 |
•
1 sec. | |||
Fail Safe | MIL |
•
On | ||
