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what does this error mean 3548 the on-board power supply voltage is too low

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what does this error mean 3548 the on-board power supply voltage is too low

 
Old 12-23-2018, 05:18 AM
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W204 2008
what does this error mean 3548 the on-board power supply voltage is too low

i have this error on my car, after many days searching the web, i only found one person who encountered this issue "here on MB world" with no solution for him,

3548 the on-board power supply voltage is too low

normally the car would send an error saying that the battery voltage is too low, what does the "on-board power supply" mean?! where is this power supply?

note: i changed the battery & the ECM/ECU with no luck of resolving this error,

any help would be highly appreciated

Yazeed Ayasra is offline  
Old 04-16-2019, 10:18 AM
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001 s600, 94 sl600
Unhappy on board power supply low means?

I suggest you contact MBZ technical support. They should be able to explain where the 'low voltage' message is being triggered. It can be from a high resistance external connector, the power connector to the particular circuit board, a defective voltage regulator on the circuit board, or many other contributors. Many electronic components are very sensitive to supply voltage and will overheat if voltage is too low.
Please share when You find it!
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