Terminal 30 undervoltage error code
08-29-2015, 01:42 PM
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CLK 55 AMG, E320 CDI
Terminal 30 undervoltage error code
Hi folks
Been having a problem with my 2003 W209 CLK 55 AMG. Went to drive it one day and it fired up a brake light warning and refused to engage gears. It cured itself after a day or two but has been doing it intermittently since. I've replaced the brake pressure sensor and no difference. Since then the ESP, ABS and BAS error codes have been constantly on and when plugged in it shows Terminal 30 undervoltage with live readings of around 5v.
I've replaced the battery with the factory recommended one and the error remained. The voltage at the ABS unit coming from the plug is fine, the battery the same and the alternator also. Anyone else heard tell of this before go insane?
Been having a problem with my 2003 W209 CLK 55 AMG. Went to drive it one day and it fired up a brake light warning and refused to engage gears. It cured itself after a day or two but has been doing it intermittently since. I've replaced the brake pressure sensor and no difference. Since then the ESP, ABS and BAS error codes have been constantly on and when plugged in it shows Terminal 30 undervoltage with live readings of around 5v.
I've replaced the battery with the factory recommended one and the error remained. The voltage at the ABS unit coming from the plug is fine, the battery the same and the alternator also. Anyone else heard tell of this before go insane?
03-30-2019, 01:35 AM
#2
Newbie
Hi folks
Been having a problem with my 2003 W209 CLK 55 AMG. Went to drive it one day and it fired up a brake light warning and refused to engage gears. It cured itself after a day or two but has been doing it intermittently since. I've replaced the brake pressure sensor and no difference. Since then the ESP, ABS and BAS error codes have been constantly on and when plugged in it shows Terminal 30 undervoltage with live readings of around 5v.
I've replaced the battery with the factory recommended one and the error remained. The voltage at the ABS unit coming from the plug is fine, the battery the same and the alternator also. Anyone else heard tell of this before go insane?
Been having a problem with my 2003 W209 CLK 55 AMG. Went to drive it one day and it fired up a brake light warning and refused to engage gears. It cured itself after a day or two but has been doing it intermittently since. I've replaced the brake pressure sensor and no difference. Since then the ESP, ABS and BAS error codes have been constantly on and when plugged in it shows Terminal 30 undervoltage with live readings of around 5v.
I've replaced the battery with the factory recommended one and the error remained. The voltage at the ABS unit coming from the plug is fine, the battery the same and the alternator also. Anyone else heard tell of this before go insane?
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