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Home >> Chevrolet >> 2010 >> Cobalt LS, 4D Sedan, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls And Fuel - 2.0L - DTC P000A To DTC P0238) >> DTC P0036, P0037, P0038, or P0141 >> Circuit/System Description >> P0038

Circuit/System Description: P0038

WARNING: This page is about a different variant/trim than selected.

The ECM monitors the voltage on the HO2S 2 heater low control circuit for heater fault diagnosis. If the ECM detects that the HO2S 2 heater low control circuit voltage is above a specified range, DTC P0038 sets.

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