Rotation speed sensor for output shaft, signal interference
â–¶ How to fix
Check that there is no damage or short circuit on the external cable harness. Contact an Allison dealer.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
The control unit has detected a disturbance in the signal from the rotation speed sensor which is located on the output shaft.
Possible cause
A possible cause of the fault may be damage to the cable harness or a defective rotation speed sensor for the output shaft.