Контекст:

AUTOMOBILE TECHNICAL TRAINING:

A : Gear noise for AT transmissions
[Crucial diagnostic points]
When groaning noise comes out when shifted to P
•As the gear is mechanically shifted to P, a mechanical failure has occurred.
Failure of the parking mechanism
The parking gear or a parking pole may be broken, but driving conditions or an accident may be a factor. Ask the customer carefully for these possibilities.
Selecting wire failure
This occurs when the parking mechanism does not correctly operate due to incorrect adjustment or slackening of the wire. There is a possibility, however ; that this results in damaging the parking mechanism itself and you should be cautious of this possibility.

может, канат? slackening of the wire - слабое натяжение каната??

Заранее спасибо