Control system, gearbox identification
â–¶ How to fix
Check that cable 176 does not have any visible damage or breaks.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 cannot determine which gearbox identification level the gearbox has.
Possible cause
The cause can be that there is no connection between control unit pin 76 and gearbox, or there is an open circuit in cable 176.