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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1136 (AUTOMATIC TRANSAXLE DIAGNOSTICS (DTC P1820, 3.4l TO DTC U2105, 3.6L) - 4T65-E) >> Diagnosis >> DTC U2105 (3.6L) >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

This DTC sets when a communication fault exists between the ECM and the TCM. Inspect for DTCs U 2100, U 2104 and U 2106. If any of these DTCs are present, diagnose them first.