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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 214 (Automatic Transaxle Diagnosis - 4T65-E) >> Diagnostic Tests >> DTC P1820: Internal Mode Switch Circuit A - Low >> Conditions For Setting DTC

Conditions For Setting DTC

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. 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:

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