ABS/SKID CONTROL ECU Problem

Hi there,

My partner's Prius is bring up the red warning triangle. She had a system diagnostic carried out, which brought up these two faults:

C1241 Low Battery Positive Voltage
C1300 ABU ECU Malfunction

The faults were reset, but it was only a short matter of time, before the red triangle reappeared. My partner tells me this tends to happen more frequently when she is steering left and in colder weather.

She was advised the ABS ECU will need to replaced (it does says "new actuator" on the paperwork, so I'm assuming this means the same thing?)

I have looked at some of the previous threads and note many of these problems stem from the 12V battery. My partner tells me this was replaced only last year. I wondered if it was possible the battery may be still the problem?

I just wanted to get some advice from other owners as to whether these error codes would point to the ABS ECU needing be replaced, as this is quite an expensive job (being a female who knows little about cars, I know some garages will try to take advantage...).

I was also wondering where the ABS ECU is located on the vehicle and if it is easily accessible, so I can find out the part number/serial number. I have noted some for sale on ebay, but the part numbers seem to vary....

Any help would be appreciated.

Thank you.

 

Hi there,

Thank you. She has done around 76K miles. I will make sure we check the battery voltage first. Again something I've not done before, can that be done with a household ammeter? Or is this a job for an electrical engineer? (Sorry if that sounds like daft question....)