B25604 Code - Cargo Lamps Control Circuit Open
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
- B25604 indicates Cargo Lamps Control Circuit Open.
- 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.
Code B25604 Description
What are the Possible Causes of the DTC B25604?
- 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 B25604?
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 B25604 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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Frequently Asked Questions about B25604 Code
1. What does the OBDII code B25604 mean?
B25604 indicates that there is an open circuit in the cargo lamps control circuit, preventing the cargo lamps from functioning.
2. What are the common symptoms of code B25604?
The primary symptom is that the cargo lamps fail to turn on, either manually or automatically.
3. What causes the B25604 code to appear?
This code is typically caused by a damaged or disconnected wiring harness, a faulty cargo lamp switch, or a burnt-out cargo lamp bulb.
4. Can a blown fuse trigger the B25604 code?
Yes, a blown fuse in the cargo lamp circuit can create an open circuit and trigger this code.
5. How do I diagnose the B25604 code?
Start by inspecting the wiring, connectors, cargo lamp bulb, and fuse for damage. Use a multimeter to check for continuity in the circuit.
6. Can I drive my vehicle with the B25604 code?
Yes, you can drive the vehicle, but the cargo lamps won’t function properly, which might be inconvenient in low-light situations.
7. How do I fix the B25604 code?
Repairs may include replacing damaged wiring, repairing loose connections, replacing the cargo lamp bulb, or replacing the faulty switch.
8. How much does it cost to fix the B25604 code?
The repair cost varies but typically ranges from $50 to $200, depending on whether you’re replacing a bulb, switch, or repairing wiring.
9. Can clearing the code fix the B25604 issue?
Clearing the code without addressing the underlying issue will not solve the problem, and the code is likely to return.
10. How can I prevent the B25604 code from occurring?
Regularly inspect the cargo lamp system for wear, ensure the wiring and connectors are secure, and replace bulbs and fuses as needed.
Discuss the causes and fixes for B25604 OBDII Code
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