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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 147 (Automatic Transmission - 4L80-E/4L85-E - DTC P0977 To DTC P2764) >> DTC P2534 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2007 GMC Yukon XL and 2007 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.

The transmission control module (TCM) samples the system voltage on the Ignition 1 voltage circuit every 0.1 second. Lower than normal voltage may be inadequate to operate the transmission control solenoids properly. Improper solenoid operation may cause erratic transmission operation, which may result in internal damage.

If the TCM detects an open or short to ground on the Ignition 1 voltage circuit, DTC P2534 sets. DTC 2534 is a type A DTC.

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