Chevrolet Sonic Repair Manual: Heated Oxygen Sensor Resistance Learn Reset Caution

Caution:

When replacing the HO2S perform the following:

• A code clear with a scan tool, regardless of whether or not a DTC is set
• HO2S heater resistance learn reset with a scan tool, where available

Perform the above in order to reset the HO2S resistance learned value and avoid possible HO2S failure.

Heated Oxygen Sensor Replacement - Sensor 2

Heated Oxygen Sensor Replacement - Sensor 2 Callout Component Name 1 Heated Oxygen Sensor 2 Warning: In or ...

Heated Oxygen and Oxygen Sensor Caution

Caution: Do not remove the pigtail from either the heated oxygen sensor (HO2S) or the oxygen sensor (O2S). Removing the pigtail or the connector will affect sensor operation. Handle the ox ...

Other materials:

Liftgate (Hatchback)
Warning Exhaust gases can enter the vehicle if it is driven with the liftgate, hatch/trunk open, or with any objects that pass through the seal between the body and the hatch/trunk or liftgate. Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. It can cause unconsci ...

Brake Drum Replacement (J93, J94)
Special Tools CH-41013 Rotor Resurfacing Kit CH-42450-A Wheel Hub Resurfacing Kit For equivalent regional tools, refer to Special Tools. Removal Procedure Warning: Refer to Brake Dust Warning. Release the park brake. Raise and support the vehicle. Refer to Lif ...

Fuel Tank Fuel Pump Module Replacement
Special Tools EN-48279 Fuel Sender Lock Ring Tool For equivalent regional tools, refer Special Tools. Removal Procedure Relieve the fuel system pressure. Refer to Fuel Pressure Relief Remove the fuel tank. Refer to Fuel Tank Replacement. Disconnect the elect ...