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B2560 Cadillac Code - Cargo Lamps Control Circuit

Quick Answer

The cargo lamp relay is always supplied with battery voltage. Common causes include Faulty Cargo Lamp Relay, Cargo Lamp Relay harness is open or shorted, Cargo Lamp Relay 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
B2560 Cadillac indicates Cargo Lamps Control Circuit.
Common causes
Common causes include Faulty Cargo Lamp Relay, Cargo Lamp Relay harness is open or shorted, Cargo Lamp Relay 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 249
How popular is this code, among other codes? Low
What is this?
Table of contents Created and updated by William Orellana on May 25, 2023
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Code B2560 Cadillac Description

The cargo lamp relay is always supplied with battery voltage. The cargo lamp switch signal circuit is grounded momentarily by pressing the cargo lamp switch. The Body Control Module (BCM) energizes the cargo lamp relay by applying ground to the cargo lamp relay control circuit. When the cargo lamp relay is energized, the relay switch contacts close, and battery voltage is applied through the fuse to the cargo lamp control circuit which illuminates the cargo lamps. The Diagnostic Trouble Code (DTC) will be set when the BCM detects a problem in the cargo lamp switch ground circuit.
OBDII Code B2560 Cadillac - Cargo Lamps Control Circuit - AutoCodes.com
B2560 Cadillac Code - Cargo Lamps Control Circuit
What does this mean?

What are the Possible Causes of the DTC B2560 Cadillac?

  • Faulty Cargo Lamp Relay
  • Cargo Lamp Relay harness is open or shorted
  • Cargo Lamp Relay circuit poor electrical connection
  • Faulty Cargo Lamp Switch
  • Faulty Cargo Lamp
  • Faulty Body Control Module (BCM)

How to Fix the DTC B2560 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2560 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 B2560 Cadillac Code

1. What does OBDII code B2560 mean on a Cadillac?

Code B2560 indicates a malfunction in the cargo lamps control circuit, which may involve wiring, the switch, or the control module.

2. What are common symptoms of code B2560 in a Cadillac?

Symptoms include the cargo lamp not turning on, being stuck on, or flickering, along with a possible warning light on the dashboard.

3. What causes code B2560 in a Cadillac?

Common causes include faulty wiring or connections, a defective cargo lamp switch, a burnt-out bulb, or a malfunctioning body control module (BCM).

4. Can a blown fuse trigger code B2560 in a Cadillac?

Yes, a blown fuse in the cargo lamp circuit can cause this code by interrupting the circuit’s operation.

5. How do I diagnose code B2560 in a Cadillac?

Start by inspecting the cargo lamp, wiring, and connectors for damage or corrosion. Then, test the switch and control module for proper function.

6. Can I drive with code B2560 in my Cadillac?

Yes, you can still drive with this code, but the cargo lamp may not function properly, which could be inconvenient or unsafe in low-light situations.

7. How do I fix code B2560 in my Cadillac?

Repairs may include replacing a faulty cargo lamp switch, repairing damaged wiring or connectors, replacing the bulb, or reprogramming or replacing the BCM.

8. Is code B2560 specific to Cadillac vehicles?

While B2560 is a generic OBDII code, the exact meaning and troubleshooting steps may vary by manufacturer. For Cadillac, it refers specifically to the cargo lamp circuit.

9. How much does it cost to fix code B2560 in a Cadillac?

Repair costs vary depending on the issue, ranging from around $50 for a bulb replacement to $500 or more if the BCM needs replacement.

10. Can a dead cargo lamp bulb cause code B2560 in a Cadillac?

Yes, a burned-out bulb can disrupt the circuit and trigger this code in some cases.

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