7393Fusion

We had our 2014 Fusion towed to dealership for the dreaded shift cable bushing repair which we were under the impression was a recall. The dealership is trying to say they'll have to charge us $150 fee for a diagnostic test just to "confirm" it. Does anyone who works at a Ford dealership know if I can have this fee waived? It seems a little steep for diagnostics especially when I already know what the issue is. Thank you in advance for your assistance.