Code C1513, brakes not working properly

LARSON.CHRIS1981

MEMBER
2009 HYUNDAI TUCSON
2.0L
4 CYL
2WD
AUTOMATIC
250,000 MILES

I have lost my brakes completely on my JM Hyundai Tuscon. Cannot get fluid to front left and rear right calipers when manually bleeding. Front left caliper recently seized and since replacing I have had this issue. Getting a c1513 Brake switch circuit error on my diagnostic scanner. However, I can also hear air expelling through booster when applying pressure to pedal and master is not drawing fluid from reservoir when pumping the pedal which is leading me to believe it is more of a master cylinder issue?

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,896 POSTS

Hi,

The code is related to the brake light switch. It ties in with the traction control and ABS. I don't think that is causing the issue.

I'm not sure how much fluid was lost when you replaced the caliper, but I suspect air got into the ABS unit. You need a scan tool that can communicate with the ABS module to perform this, but I feel this is what is needed.

If you look below, I have attached the directions for the automated bleed procedure.

Try this and let me know if it helps. Also, let me know if you have questions.

Take care,

Joe

See pics below.

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Tuesday, March 1st, 2022 AT 8:14 PM

LARSON.CHRIS1981

MEMBER
2 POSTS

Hi Joe,

Thanks greatly for the assistance. I am also getting a C1283 code in relation to the Yaw sensor and G sensor signal which I understand communicates with my electronic brake control module, traction control, electronic stability control etc? I have already tried the auto bleed using a Foxwell nt630 plus diagnostic scanner and still cannot get fluid to either caliper. I hear the pump engage and it says all inlet and outlet valves are active. I have since removed the master to bench bleed, however whilst the cylinder will still go back and forth it will not draw fluid from the reservoir. I sense this means I need a new master also, could this also contribute to why I cannot get fluid to either caliper?

Thank you kindly.

Chris

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Wednesday, March 2nd, 2022 AT 2:15 PM

JACOBANDNICKOLAS

MECHANIC
109,896 POSTS

Chris,

If you are unable to bench bleed the master cylinder and it isn't drawing fluid, that certainly does sound bad. However, the code you provided is specific to the YAW/G sensor signal.

Take a look at the first three pics for a clear description of the code. Additionally, the last two pics are diagnostics. The description (pic 3) indicates voltage references to the HECU. You may want to confirm those are correct.

As far as the master cylinder and based on what you are experiencing, I would replace it.

Take a look through the attachments below and let me know if they help.

Take care,

Joe

See pics below.

Images (Click to make bigger)