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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Engine Controls - Self-Diagnostics - 4.0L) >> Diagnostic Tests >> DTC P1031: Ho2S Bank 1 & 2 Sensor 1 Heater Current Monitor Control Circuit >> Conditions For Setting DTC

Conditions For Setting DTC

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

The PCM detects an incorrect circuit condition for the commanded state of the current monitor driver.