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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 104 (Automatic Transaxle - 4T65-E - DTC P0218 To DTC P0748) >> DTC P0601, P0602, P0603 or P0604 (3.6L) >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

The internal fault detection is handled inside the transmission control module (TCM). No external circuits are involved.