P0671 FORD code

The P0671 code indicates that the PCM has detected an abnormal voltage reading from the glow plug circuit in cylinder 1.

How do I fix error code P0671?


Zitat von Youtube: Check the glow plug control module itself and its electrical connections for any damages.

What causes a P0671 code?

OBD II fault code P0671 is a generic code that is defined as “Cylinder 1 Glow Plug Circuit/Open”, and is set when the PCM (Powertrain Control Module) detects an electrical defect/failure/malfunction that causes a break in continuity in the control circuitry of the glow plug on cylinder #1.

What is glow plug circuit?

A glow plug is a device utilized in diesel engines to heat a cylinder head when starting up a cold engine. The diesel engine uses the high level of heat through compression, which quickly ignites the fuel. Each cylinder of the engine has a glow plug to heat the cylinder head.

What is glow plug relay?

Glow plugs relays are a part of the ignition system in diesel cars. When you turn the key in the ignition, the glow plug control unit analyses input from the ECU to determine the timings and currents required by the plugs in order to start the car.

What is glow plug control module?

The glow plug control module determines the timing and electric current required by the glow plugs based on input from the Engine Control Unit; The heating element in the glow plug is electrified so it heats up and emits visible light (hence the name);

What is code P0678 mean?

The P0678 code is a generic OBD-II trouble code indicating a problem with the glow plug circuit in cylinder number 8. Glow plugs are used in diesel engines to help warm the engine to aid ignition. The powertrain control module (PCM) helps control this heat.

What happens if a glow plug stops working?

In cold conditions, without correctly functioning glow plugs, the combustion chamber may not reach the right temperature to ignite the fuel and start the engine. If there are no problems with the fuel or the battery, then glow plugs should be checked.

How much should it cost to replace glow plugs?

If you delay changing your glow plugs because of the cost, you should know that glow plug replacements are affordable. Depending on the quality and brand, you can get a new glow plug for anywhere between $25 and $50.