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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 79 (Engine Controls - Self-Diagnostics - 4.0L) >> Diagnostic Tests >> DTC P0036: Ho2S Heater Control Circuit (Sensor 2) >> Test Description

Test Description

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 numbers below refer to the step number in the diagnostic procedures.

  1. 2

    This step isolates the condition. If all DTCs are set, this indicates that one of the heater low circuits are grounded. An internal HO2S condition can also cause all DTCs to set.

  2. 3

    This step isolates the condition. If DTC P0036 is set without the other control circuit faults, the condition is present only in the HO2S bank 1 sensor 2 heater low control circuit.
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