Speed Sensing

SYMPTOM CHART
Condition(s)

NOTE: This Diagnostic Trouble Code (DTC) is non OBD II but is included for reference to P1720

DTC P0721 Output / turbine speed sensor circuit malfunction:
Possible Source(s):
- Output speed sensor signal faulty.
- Harness fault.
- Connector pins(s) bent, loose or corroded.
- Damaged harness screen.
Action(s) to take:
- GO to [Pinpoint Test E] Pinpoint Test E (P1720, P0721)

DTC P1720 Loss of output speed and wheel speed information:
Possible Source(s):
- As P0721
- Anti-Lock Braking System (ABS) fault
Action(s) to take:
- GO to [Pinpoint Test E] Pinpoint Test E (P1720, P0721)

DTC P0715 Input I turbine speed sensor circuit malfunction:
Possible Source(s):
- Input speed sensor signal faulty
- Harness fault
- Connector pins(s) bent, loose or corroded
- Damaged harness screen
Action(s) to take:
- GO to [Pinpoint Test F] Pinpoint Test F (P0715)