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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1038 (Engine Controls Diagnosis - 8.1L (DTC P0068 To P0174)) >> Diagnosis >> DTC P0135, P0141, P0155, or P0161 >> Conditions for Setting the DTC >> Heater Resistance Test:

Heater Resistance Test:

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The PCM detects that the affected HO2S heater calculated resistance is not within an expected range at engine start-up.

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