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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 P182F, P1839, P18B7, P18BC, Or P18C1: Internal Mode Switch C 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.

P182F 

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

P1839 

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

P18B7 

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

P18BC 

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

P18C1 

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

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