Got a customer with a 2005 seat ibiza 1.4 with electric power steering they have asked me to diagnose the "fault" with their car. They are complaining about headlights dimming when the power steering is used.
From a large amount of reading this appears to be a common issue that is not a fault just down to the drain from a high amperage p/s pump.
initially had no comms with vag com - easy fix k line still connected with an aftermarket head unit. When checking voltages with k line still connected to radio under load battery voltage was dropping to 12v after k line disconnected 14v and reasonably stable but the headlights still dim with steering.
Can anyone confirm this is normal as i have never been asked to trace a fault similar to this before and not sure it is a fault.
In power steering assist measuring blocks i have a difference in terminal 30 and 15 voltages of about 0.4 -0.5 volts and power steering assist reference voltage only says "to low" no actual value seen this in other peoples logs aswell???
I can't post any logs as they are on my other laptop but will have access to that tomorrow and will upload asap.
thanks in advance
From a large amount of reading this appears to be a common issue that is not a fault just down to the drain from a high amperage p/s pump.
initially had no comms with vag com - easy fix k line still connected with an aftermarket head unit. When checking voltages with k line still connected to radio under load battery voltage was dropping to 12v after k line disconnected 14v and reasonably stable but the headlights still dim with steering.
Can anyone confirm this is normal as i have never been asked to trace a fault similar to this before and not sure it is a fault.
In power steering assist measuring blocks i have a difference in terminal 30 and 15 voltages of about 0.4 -0.5 volts and power steering assist reference voltage only says "to low" no actual value seen this in other peoples logs aswell???
I can't post any logs as they are on my other laptop but will have access to that tomorrow and will upload asap.
thanks in advance