AMST - TCM Stores P0727 No Speed Signal From ECU, Sporadic
37 TCM stores P0727 (no speed signal from engine control unit, sporadic)
37 12 46
2020476/3
April 13, 2012.
Supersedes Technical Service Bulletin Group 37 number 09 - 12 dated September 15, 2009 for reasons listed below.
Affected Vehicles
Audi A4 Quattro Sedan (8K2) L4-2.0L Turbo (CAEB) Page 202
Condition
DTC P0727 (Engine Speed Input Circuit No Signal, Sporadic) is stored in the transmission control module.
Technical Background
At engine start, the engine speed signal arrives to the TCM with delay. The entry is stored because the diagnosis is too sensitive. Drivability is not
affected by this condition.
Production Solution
Not applicable.
Service
If the entry is sporadic or only sets on vehicle start, it can be deleted and ignored.
A parts replacement will not address the condition, and the claim will be denied.
Warranty
This TSB is informational only and not applicable to any Audi warranty.
Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service
manuals for the latest information.
