To the miles
So yes, my friend, if the traction control light is on, i.e. ESP/ABS in one is on all the time, in Citroen C3 1.4Hdi, then:
I checked the equipment:
1. Lexia error (Brake pad wear YES), what does it mean? yes, the ABS pump has air in it due to the loss of brake fluid in the reservoir, and therefore both programs indicate it as a brake pad sensor, which is physically missing, but the service program reads it and indicates it, so the mechanic, or rather the electromechanic, knows what`s going on! The point is that the pistons of the brake calipers or cylinders are already extended enough to make a difference, thus lowering the fluid level.
2. CDIF error (Brake pad wear YES) - what does it mean? yes, the ABS pump has air in it due to the loss of brake fluid in the reservoir, and therefore both programs indicate it as a brake pad sensor, which is physically missing, but the service program reads it and indicates it, so the mechanic, or rather the electromechanic, knows what`s going on! The point is that the pistons of the brake calipers or cylinders are already extended enough to make a difference, thus lowering the fluid level.
3. Launch X431 Diagun, same story as above
So the definition of the programs indicates that the pad wear sensor is the same as in the above cases, i.e. diagnostics!
So I have this equipment and I know what I am writing and saying here! each diagnosis always defines it this way in this case, and by the way, the traction control light applies to both ESP and ABS systems, so if the ABS pump has air in it, this is what happens and you can notice it when, for example, you press the brake pedal with the engine running, which goes down slowly and this means there is air in the pump! (A sporadic case of fluid leakage from the brake system, but this was already known from the very beginning of the driving test, etc.).
And as a side note and off-topic, I will add that, for example, error P1351 with CDIF is a very common phenomenon in Citroen, Peugeot, etc. I will tell you that it is often an error caused by a voltage drop in the installation and is referred to as a transient defect! And someone would say that the glow plug pre-heating relay needs to be replaced? well no! you need to replace a glow plug, of course! There would be many examples of faults here!
And as for what my friend put it I quote and what a miracle this is? yes, this is a miracle, i.e. an error that also accompanies 1.4Hdi, error of the recirculation pump, permanent failure concerns the EGR valve if it has no effect after cleaning or is it damaged? I`m blind! (symptoms weaken over time, uneven engine operation, etc.). But there are also cars where this cannot be done.
Without specific diagnostics, one can only assume that the program is one thing and practice is another. It`s always like that!
And maybe my friend Milejow could explain to me how the ABS/ESP pump works when the brake fluid level drops, i.e. what happens in the pump? how does the fault occur as a constant ABS pump, etc. (Maybe your friend could replace the pump?), (or maybe replace the sensor, ABS sensors, etc.).
However, if there is wheel slippage, the ESP light will flash briefly and permanently, which means poor adhesion of the wheels to the asphalt surface, etc.
Currently, I had a case in Citroen that an error occurred - the pump was mechanically blocked due to ABS/ESP - a permanent fault and it was not the valve section in the pump that was to blame, but the engine itself, so it was necessary to replace the set.. pump, the error after replacement obviously disappeared, i.e. the so-called traction light, but you should pay special attention to the no. pump controller must be the same!!!.
When it comes to damage to any of the ABS sensors, in terms of the sensor itself or lack of contact in the pin plug due to often tarnished contacts, when diagnostics with Lexia or Multidiag with other equipment, it clearly indicates which wheel has the sensor damage!!!... These faults do not have nothing to do with, for example, the engine turning off or starting or other various coincidences that lead to an incorrect diagnosis of the actual fault that appears under many prompts from the program, because there are also such.
Regards
