What is heater control circuit?
What the P0052 code means. This code is seen when the Engine Control Module (ECM) tries to control the heater control circuit for Bank 2 Sensor 1 and finds high voltage present. The heater is an integral part of sensor function that is used to heat the oxygen sensor to operating temperature until the vehicle warms up.
What is a heater control circuit Bank?
An HO2S is heated to ensure very rapid response of data to the ECM’s closed loop system which helps decrease emissions during start-up and when the engine is cold.
How much is a heated oxygen sensor?
Depending on your car, the oxygen sensor cost may vary from $20 to $100. The labor cost depends on your vehicle model and the mechanic to whom you go. A Mechanic’s labor rates range from $50-$150 an hour. Usually it will not take them more than 30 minutes and will cost you less.
What is the code for ho2s heater control circuit low?
P0037 trouble code definition P0037 is the code for HO2S Heater Control Circuit Low (Bank 1, Sensor 2) What the P0037 code means P0037 indicates that, for the engine to run correctly, the exhaust must have a specific air fuel…
How can I check the heater control circuit?
Verify the heater control (ground) circuit is intact. If so, remove the o2 sensor and inspect for damage. If you have access to resistance specifications you can use a Ohmmeter to perform a resistance test of the heater element. Infinite resistance indicates an open in the heater. Replace the o2 sensor as necessary.
How does the ground side of the heater control circuit work?
The other way would be a fused 12 volt Battery feed (B+) that feeds 12 volts to the heater element anytime the ignition is on and the control of the heater is done by a driver in the PCM which controls the ground side of the heater circuit.
How is the heater of an oxygen sensor controlled?
Depending on the make of vehicle, the Oxygen sensor heater is controlled one of two ways. One way is that the PCM directly controls the voltage feed to the heater either directly or via a HO2S relay and a ground is supplied from the vehicle’s common ground.