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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Automatic Transmission - 8L90 (M5U) - Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> DTC P0815, P0816, Or P0826: Up And Down Shift Switch Circuit >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.

P0815 - Condition 1 

The BCM detects a stuck On Tap Up switch for 1 second in Park or Neutral.

P0815 - Condition 2 

The BCM detects a stuck On Tap Up switch for 10 minutes in any forward gear.

P0816 - Condition 1 

The BCM detects a stuck On Tap Down switch for 1 second in Park or Neutral.

P0816 - Condition 2 

The BCM detects a stuck On Tap Down switch for 10 minutes in any forward gear.

P0826 

The BCM detects an invalid voltage on the TAP up/down signal circuit for 1 minute.

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