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C0274 Cadillac Code - Isolation Valve High Temperature

- Code Popularity: 1,054 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC C0274 Cadillac?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Electronic Brake Control Module (EBCM) with Brake Pressure Modulator Valve (BPMV)
  • Brake Pressure Modulator Valve harness is open or shorted
  • Brake Pressure Modulator Valve circuit poor electrical connection
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How to Fix the DTC C0274 Cadillac?

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

Code Tech Notes

If the C0274 code is combined with other codes, fix other codes first.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0274 Cadillac code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

Code C0274 Cadillac Description

The solenoid valves are integral parts of the brake pressure modulator. The brake pressure modulator contains an isolation solenoid valve and a dump solenoid valve for each wheel. A traction/stability control supply solenoid valve and an isolation solenoid valve for each brake circuit. The solenoid valves are not engaged during normal system operation. When the ABS, the traction control, or the stability control operation is required the Electronic Brake Control Module (EBCM) turns the required solenoid ON. The Diagnostic Trouble Code (DTC) will be set due to the extended operation of the ABS, the traction control, or the stability control.

OBDII Code C0274 Cadillac - Isolation Valve High Temperature - AutoCodes.com
C0274 Cadillac Code - Isolation Valve High Temperature

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Code C0274 Cadillac comments

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