Vehicle speed is sent from ABS(VDC) module. ABS(VDC) calculates the vehicle speed with the wheel speed sensor. Also converts it into the digital signal and sends it to ECM. When DTC P2159 occurs, check the ABS system error first and then check the engine system.
If the vehicle speed signal is below 1.0 Km/h during 2 sec under enable conditions, ECM sets P2159.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Signal check (implausible) | 1. Poor connection 2. Open or short in signal circuit 3. ABS/ESP Module | |
Case1 | Enable Conditions |
•
Engine speed > 3000rpm
•
Engine load > 49.5%
•
Coolant temperature > - 6℃
•
Gear position : D or R | |
Threshold Value |
•
Vehicle speed signal during fuel injection < 1.0 kph | ||
Case2 | Enable Conditions |
•
Engine speed : 1520~3520rpm
•
Coolant temperature > - 6℃ | |
Threshold Value |
•
Vehicle speed signal during fuel cut-off < 1.0 kph | ||
Diagnostic Time |
•
2 sec | ||
MIL ON Condition |
•
3 driving cycle | ||