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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 P182A, P1838, P18B5, P18BA, Or P18BF: Internal Mode Switch A 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.

P182A 

TCM has detected the internal mode switch A signal circuit voltage is less than 0.7 V, for 1.75 s.

P1838 

TCM has detected the internal mode switch A signal circuit voltage is greater than 2.38 V, for 1.75 s.

P18B5 

TCM has detected the internal mode switch A signal circuit voltage is between 0.966 - 1.68 V, for 1.75 s.

P18BA 

TCM has detected the internal mode switch A signal circuit has an invalid voltage range of 1.68 - 2.38 V, for 2.7 s.

P18BF 

TCM has detected the internal mode switch A signal circuit has an invalid voltage range of 0.70 - 0.96 V, for 2.7 s.

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