AutoCodesCadillac – C1219 Cadillac

C1219 Cadillac Code - Brake Pressure Sensor Supply Voltage Circuit Low

Quick Answer

The Electronic Brake Control Module uses inputs from the Electronic Brake Control Brake Pedal Position Sensor to determine when the brake is applied and how much force is used. Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module harness is open or shorted, Electronic Brake Control Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
C1219 Cadillac indicates Brake Pressure Sensor Supply Voltage Circuit Low.
Common causes
Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module harness is open or shorted, Electronic Brake Control Module circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 265
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 13, 2023
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Code C1219 Cadillac Description

The Electronic Brake Control Module uses inputs from the Electronic Brake Control Brake Pedal Position Sensor to determine when the brake is applied and how much force is used. The Electronic Brake Control Module monitors when the driver's foot is on the brake and locks the offset. The offset is locked when three out of the four inputs indicate the brake pedal is applied. The four inputs are brake pedal travel 1, brake pedal travel 2, master cylinder pressure sensor, and brake pedal position sensor. These inputs are used to determine the driver's braking intent which is used to control the amount of pressure applied to the wheels.
Brake pressure sensor information is communicated from the Electronic Brake Control Module (EBCM) to the Hybrid Control Processor (HCP). This information is used to schedule regenerative braking and engine autostops.
The Diagnostic Trouble Code (DTC) will be set when the Engine Control Module (ECM) detects a corrupted data message from the Electronic Brake Control Module.
OBDII Code C1219 Cadillac - Brake Pressure Sensor Supply Voltage Circuit Low - AutoCodes.com
C1219 Cadillac Code - Brake Pressure Sensor Supply Voltage Circuit Low

What are the Possible Causes of the DTC C1219 Cadillac?

  • Faulty Electronic Brake Control Module (EBCM)
  • Electronic Brake Control Module harness is open or shorted
  • Electronic Brake Control Module circuit poor electrical connection
  • Faulty Starter/Generator Control Module

How to Fix the DTC C1219 Cadillac?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1219 Cadillac code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1219 Cadillac Code

1. What does the OBDII code C1219 mean on a Cadillac?

C1219 indicates a problem with the Brake Pressure Sensor Supply Voltage Circuit, specifically that the voltage is too low.

2. What are the symptoms of code C1219 in a Cadillac?

Symptoms may include the ABS warning light turning on, reduced braking performance, and potential loss of ABS functionality.

3. What causes the C1219 code to appear?

Common causes include a faulty brake pressure sensor, damaged wiring or connectors in the circuit, or a failing ABS control module.

4. Can I drive my Cadillac with the C1219 code?

While the vehicle may still be drivable, it’s not recommended as the ABS system may not function properly, increasing the risk of loss of control during hard braking.

5. How is the C1219 code diagnosed?

A mechanic will inspect the wiring and connectors, test the brake pressure sensor, and use a multimeter to check voltage levels in the circuit.

6. What repairs can fix the C1219 code?

Repairs may include replacing the brake pressure sensor, repairing damaged wiring, cleaning corroded connectors, or replacing the ABS control module if necessary.

7. How much does it cost to fix the C1219 code on a Cadillac?

Repair costs vary but can range from $100 for minor wiring repairs to $500 or more if the brake pressure sensor or ABS module needs replacement.

8. Can a low battery cause the C1219 code?

Yes, a low or failing battery can cause voltage-related issues that may trigger this code.

9. How do I reset the C1219 code in my Cadillac?

After repairing the issue, the code can be cleared using an OBDII scanner. However, the issue must be fixed first to prevent the code from returning.

10. Is the C1219 code common in Cadillacs?

It’s not a very common code but can occur in vehicles with aging components or electrical issues in the ABS system.

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