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Home >> Cadillac >> 2019 >> XTS Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 64 (Automatic Transmission - 6T70 (M7U M7W), 6T75 (M7V), Or 6T80 (Mhm) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0815, P0816, or P0826 >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2018 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.

A high resistance in the signal circuit may not set a DTC. Symptoms could include an inoperative manual mode Tap Up/Down, or a Tap Down shift when the Tap/Up button is pressed.

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