What does control circuit low mean?

What does 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 does code P023F mean?

Fuel Pump Secondary Circuit/Open
P023F OBD-II: Fuel Pump Secondary Circuit/Open. What does OBD-II fault code P023F mean? OBD-II Code Decreased engine performance is defined as a Fuel Pump Secondary Circuit/Open. The Fuel Pump enables the transfer of fuel from the fuel tank to the fuel injectors in the engine.

What does code po25a mean?

OBD-II Code P025A is defined as a Fuel Pump Module Control Circuit/Open. The engine computer (PCM) supplies voltage to the Fuel Pump Control Module. If there is a problem with the voltage supply to the Fuel Pump Module, code P025A is set. Driving with this trouble code is not recommended.

Where is the fuel volume regulator?

Fuel pressure and volume are regulated by control valves located on the pump. The fuel volume control valve (otherwise known as a fuel volume control regulator) regulates the volume of fuel produced by the injection pump.

How do I fix code P0628?

The most common repairs performed to fix a P0628 code include:

  1. Repairing or replacing a defective or damaged fuel pump relay.
  2. Repairing or replacing loose or broken wiring or connectors.
  3. Replacing the fuel pump wiring harness.
  4. Replacing a defective fuel pump.

How do I fix code P023F?

Replace/Repair These Parts To Fix OBD Code P023F. Fuel Pump – Check for any fuel pump and component failure due to high pressure situations. Replace them immediately. Diagnostic Tools – Use professional diagnostic tools to detect and diagnose the OBD error problem.

What is fuel pump secondary circuit failure?

Code P0232 is triggered when voltage in the fuel pump secondary circuit is shorted to vehicle power through the relay. The ECM monitors this voltage to see if it stays on after the key is turned off. The most common failure is a relay stuck to the On position internally.