DTC Description
The ECM receives two vehicle speed signals via the CAN communication line. One is sent from "combination meter", and the other is from TCM (Transmission control module). The ECM uses these signals for ASCD control. Refer to System Description for ASCD functions.
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms (Trouble diagnosis content) |
DTC detecting condition |
|---|---|---|
| P1574 | ASCD VHL SPD SEN (ASCD vehicle speed sensor) |
The difference between the two vehicle speed signals is out of the specified range. |
POSSIBLE CAUSE
- Harness or connectors (The CAN communication line is open or shorted.)
- Combination meter
- ABS actuator and electric unit (control unit)
- Wheel sensor
- TCM
- ECM
FAIL-SAFE
Not applicable