OBD code C1237: Primary pressure sensor signal?

AYMEN

MEMBER
2013 KIA OPTIMA K5
2.0L
4 CYL
AUTOMATIC
175,000 MILES

Suddenly I have a notice on my display, check brakes! The car was suddenly stopped, maximum speed is 20, and when I push brakes I hear like crashing sound, and brake pad takes long time to stop the car. Turned off the car, then started normally. OBD code was C1237: Primary pressure sensor signal
Any idea? Does the ABS AHB work good?

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
42,959 POSTS

This is what is said about the code C1237:

The C1237 code in a Cadillac indicates a problem with the Electronic Brake Control Module (EBCM). Specifically, it refers to an issue with the rear left pressure transducer circuit. The pressure transducer is responsible for monitoring the hydraulic pressure in the brake system.

When this code is triggered, it typically means there is a fault in the wiring or connectors associated with the rear left pressure transducer. It could be due to a damaged or loose connection, a faulty sensor, or a problem with the wiring itself.

If the wiring is good, I would replace the ABS controller which I have included instructions for in the images below. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

Images (Click to make bigger)

OBD code C1237: Primary pressure sensor signal?

1 Reply

Please login or register to post a reply.

Sponsored links