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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 77 (Engine Controls - Self-Diagnostics - 3.0L) >> Diagnostic Tests >> DTC P0135: Ho2S Heater Circuit Performance - Bank 1, Sensor 1 >> Diagnostic Aids

Diagnostic Aids

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

If an HO2S bank 1 sensor 1 heater control circuit DTC is also set, diagnose that DTC first. A heater control circuit DTC that is active for a certain length of time will set this DTC. Then, if P0134 is also set, diagnose that DTC next. See DTC P0134: HO2S CIRCUIT - INSUFFICIENT ACTIVITY - BANK 1 SENSOR 1  . An open in the sensor signal or sensor return may set DTC P0135.

Heater element resistance should be 7.0-20.2 ohms.