TORQDEX // POWERTRAIN DTC
Input / Turbine Speed Sensor A Circuit Malfunction
A fault has been detected in the transmission input or turbine speed sensor A circuit.
00 // CODE DEFINITION
What P0715 means
P0715 indicates that the transmission controller cannot reliably determine transmission input or turbine speed.
The sensor, wiring, connector, internal transmission components, or control module may be involved.
01 // COMMON SYMPTOMS
What you may notice
02 // COMMON CAUSES
What can trigger P0715?
Input speed sensor fault
The sensor may fail electrically or stop producing a usable signal.
Circuit problem
Damaged wiring or terminals can interrupt the sensor signal.
Internal transmission issue
Reluctor or internal mechanical problems may affect the measured speed.
03 // DRIVEABILITY
Can I keep driving with P0715?
Driving may be limited by incorrect shifting or limp mode. Avoid extended driving if the transmission is slipping, shifting harshly, or unable to select the proper gear.
04 // DIAGNOSTIC ORDER
Start here
Review input-speed data
Check whether the reported input speed is plausible while operating.
Inspect wiring
Check the sensor connector and harness for fluid intrusion, corrosion, or damage.
Test the sensor
Evaluate resistance or waveform as appropriate for the sensor type.
Compare transmission speeds
Compare input, output, and engine speed to identify inconsistent data.
05 // COMMON REPAIR AREAS
Systems commonly involved
These are common areas associated with P0715. Testing should confirm the actual fault before parts are replaced.
Input speed sensor fault
The sensor may fail electrically or stop producing a usable signal.
Circuit problem
Damaged wiring or terminals can interrupt the sensor signal.
Internal transmission issue
Reluctor or internal mechanical problems may affect the measured speed.
06 // DIAGNOSTIC PRINCIPLE
Confirm the fault before replacing parts
P0715 identifies a condition detected by the vehicle control system. It does not automatically identify one failed component. Test the affected system before replacing parts.
07 // RELATED TORQDEX DIAGNOSTICS
Related diagnostic guides
Continue troubleshooting by symptom and system. These TorqDex guides cover common diagnostic paths associated with this trouble code.
08 // RELATED CODES