P0715 08 (TCM - Trans Control Module)

P0715 08

Input RPM Sensor Circuit, Faulty Signal







Fault symptom
Messages shown in SID.

On-board diagnosis

Enable criteria:
Engine running and not in limp home mode.
Engine speed over 400 rpm, selector lever in D, 1, 2 or 3.
Exceptions:
- "Lockup" not activated.
- Vehicle speed over 30 km/h

Fault criteria:
Control module receives no voltage from the input speed sensor.
Control module receives no value from input speed sensor but receives value from the output speed sensor.


System reaction to a fault:
Change value for input speed to that of output speed.
If the DTC remains during several test cycles:
- Limp home

Checking the wiring harness
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:
Electrical fault in connecting leads or component.