Codes u0073, u0124 and c1259?

2012 TOYOTA PRIUS C

150,000 MILES • 1.5L • 4 CYL • 2WD • AUTOMATIC

JOSEPH MUNYANGA

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I have a 2012 Toyota Aqua, previously it was working well and able to went into electrical. As I am talking is always engine only and pops up check engine regenerative brake, traction and vehicle with Exclamation mark on center . When scanned with a Creader OBD it shows the following codes: So here are the codes: u0073, u0124 and c1259. Please team this has really confused me. help please if one has an idea.

Regards, Joseph.

Feb 22, 2023 at 3:03 AM

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Hello Joseph,

Here are the code meanings:

U0124 Lost Communication with Lateral Acceleration Sensor Module
U0073 one or more modules is not able to communicate
C1259 The skid control ECU assembly communicates with the hybrid vehicle control ECU

The first thing I would do is turn the system on and ten check all fuses here is a guide to help and the fuse location in the images below. Also is the 12-volt battery in good condition. I would turn the car off and test for 12 volts at the battery.

Here is a guide to help with that as well:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-use-a-voltmeter

There should be about 12.4 volts at the battery. Please check the images below and get back to me.

Images (Click to enlarge)

Feb 23, 2023 at 8:43 AM