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What does heater control circuit low mean?

Diagnostic Trouble Code (DTC) P0037 stands for “Heated Oxygen Sensor (HO2S) Heater Control Circuit Low (Bank 1, Sensor 2).” It refers to a malfunction in the heating element of the downstream oxygen sensor behind the catalytic converter.

What is a heater control circuit bank 1 sensor?

Error Code P0030 is defined as Heater Control Circuit B1S1 (Bank 1, Sensor 1), which indicates a heater control circuit malfunction. This refers to a problem with the heater element of the heater’s HO2 sensor. This error code gets triggered when it notices that that the sensor is taking too long to warm up.

What does Bank 2 sensor 2 oxygen sensor do?

O2 sensors on a specific bank marked as “sensor 2” (as this one is) are used to monitor emissions. A Three-Way Catalyst (TWC) system (catalytic converter) is used to control tailpipe emissions. The PCM uses the signal received from Oxygen sensor 2 (#2 indicates aft of catalytic converter, #1 indicates pre-converter)…

What does do the 2 Bank 2 O2 sensor do?

Sensor 2 is the sensor that comes after the catalytic converter and is mainly used for onboard emissions testing. The following conditions must be met for your car to test the health of the bank 2 sensor 2 O2 sensor. This fault detection method may vary between manufacturers and will occur when the following conditions exist:

What is Bank 1 and Bank 2 sensors?

Bank 1 Sensor 1 is the first sensor closest to the engine. Located on Bank 1 means it is located at the engine side with cylinders 1, 3, 5, 7, etc. Bank 1 Sensor 2 is the second sensor on the engine’s exhaust pipe, usually behind the catalytic converter. Located on Bank 1 means it is located at the engine side with cylinders 1, 3, 5, 7, etc.

Where’s is O2 sensor Bank 1, sensor 2 located?

Bank 1 sensor 2 is located downstream, usually right behind the catalytic converter. Regardless of the bank, all oxygen sensors use the same naming pattern. One that is between the engine and the catalytic converter is upstream or sensor 1. The O2 sensor, which is installed after the catalytic converter, is called downstream or sensor 2.