Turbine speed sensor, signal missing
â–¶ How to fix
Check the wiring and try fitting a new sensor and check whether the fault disappears. Contact an Allison dealer.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
Signal from turbine speed sensor missing
Possible cause
A possible cause of the fault may be damage to the cable harness or a defective turbine speed sensor.