How do I fix error code P0030?

The most common repairs to address the P0030 code are as follows: Have a certified technician from yourmechanic.com verify the code with a scanner. Reset the fault codes and perform a road test. If the P0030 code returns, then follow the test procedure.

What could cause a P0030 code?

Here are some of the possible triggers of code P0030: Faulty oxygen sensor. An issue with the oxygen sensor heater circuit, such as a blown fuse, damaged wires or poor connections. An issue with the PCM, such as software in need of an update.

How do you fix HO2S heater control circuit low?

If the battery feed is intact, remove the ground (control) circuit from the ECM wiring connector and check for resistance on the circuit. If there is infinite resistance, repair the open in the circuit. If the control circuit checks out, suspect a bad O2 sensor. Replace and re-check.

What is HO2S heater control?

An HO2S is heated to insure very quick response to send data to the ECM closed loop system which helps control exhaust emissions during startup, when the engine is cold or in warm up mode. If the resistance on the heater circuit is above 10A it is out of range.

What does HO2S mean?

The HO2S2 (heated oxygen sensor 2) sensor calculates the air to fuel ratio of the vehicle’s exhaust.

What is a HO2S sensor?

The Oxygen(O2) Sensor is installed in the exhaust system to determine the amount of oxygen left in the exhaust stream after combustion. This is used by the ECU to determine if more or less fuel (longer or shorter injector duration) is need to achieve optimum air/fuel ratios.

What is HO2S?

What is HO2S heater control circuit low?

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 does HO2S stand for?

How do I fix code P0136?

What repairs can fix the P0136 code?

Replacing the O2 sensor for bank 1 sensor 2.
Repairing or replacing the wiring or connection to the O2 sensor for bank 1 sensor 2.
Repairing exhaust leaks or a damaged catalyst.

What is a HO2S heater control circuit bank 1 sensor 2?

Definition. The job of the HO2S is to read the oxygen content of the exhaust system and send that information to the PCM. The Bank 1, Sensor 2 refers to Bank 1’s second sensor on the back. The PCM will then use the information to monitor the catalytic converter’s efficiency.

What causes a p0030 code on a HO2 sensor?

Potential causes of a P0030 trouble code may include: Failed or damaged heater circuit element inside the HO2S Open on the O2 sensor heater’s ground circuit Open or short on O2 sensor heater’s B+ battery feed (on some vehicles this may be the control circuit)

What is the engine code for a ho2s heater?

Replace and re-check. Engine codes P0135 (HO2S Performance Bank 1 Sensor 1) and P0030 (HO2S Heater circuit Bank 1 Sensor 1). I replaced the upstream oxygen sensor (bank 1 sensor 1) with an NGK 21546 however the MIL is still on.

What does p0030 stand for on a check engine light?

The PCM monitors the heater circuit and will turn on the check engine light if it finds a problem. Code P0030 stands for Oxygen O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1). This indicates the PCM has detected a problem with the bank 1 oxygen sensor. Bank 1 refers to the side of the engine that has the #1 cylinder.

What does p0030 stand for in PCM?

Code P0030 stands for Oxygen O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1). This indicates the PCM has detected a problem with the bank 1 oxygen sensor. Bank 1 refers to the side of the engine that has the #1 cylinder. Bank 2 is the opposite side of the engine.