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Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 50 (Automatic Transmission - 8L45 (M5N M5T) Or 8L90 (M5U) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P1824, P182D, P18B8, P18BD, or P18C2: Internal Mode Switch P >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

P1824 

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

P182D 

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

P18B8 

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

P18BD 

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

P18C2 

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