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Home >> Chevrolet >> 2012 >> Suburban C2500 >> Repair and Diagnosis >> External Pages >> Different car >> Section 1898 (Engine Controls/Fuel - Hybrid (LZ1) - DTC P0351 To DTC P3449 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

A high resistance condition on the accelerator pedal sensor circuits could cause a DTC to set.

Ensure that the in-line harness connector seals are installed correctly. Improper installation could result in water intrusion into the connector and cause a DTC to set.

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