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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 69 (Automatic Transaxle (DTC P0740 To DTC P1820)) >> Diagnosis >> DTC P1820 (3.6L) >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

The IMS Signal A is continuously low this ignition cycle, and the following conditions occur:

  1. The IMS indicates PARK for 0.25 seconds.
  2. The IMS indicates transitional position D4-D3 for 60 seconds.