B1377 Code - Oil Change Lamp Circuit Failure
Quick Answer
The Powertrain Control Module (PCM) monitors the Oil Change Lamp. Common causes include Faulty Oil Change Lamp, Oil Change Lamp harness is open or shorted, Oil Change Lamp 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
- B1377 indicates Oil Change Lamp Circuit Failure.
- Common causes
- Common causes include Faulty Oil Change Lamp, Oil Change Lamp harness is open or shorted, Oil Change Lamp 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 B1377 Description
What are the Possible Causes of the DTC B1377?
- Faulty Oil Change Lamp
- Oil Change Lamp harness is open or shorted
- Oil Change Lamp circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC B1377?
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 B1377 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 B1377 Code
1. What does OBDII code B1377 mean?
Code B1377 indicates an issue with the oil change lamp circuit, which could prevent the oil change reminder light from functioning correctly.
2. What are the common symptoms of code B1377?
The most common symptom is the oil change reminder light not turning on or staying illuminated even after an oil change.
3. What causes the oil change lamp circuit failure?
Common causes include a faulty oil change reminder light, damaged wiring or connectors in the circuit, or a malfunctioning body control module (BCM).
4. How can I diagnose code B1377?
Start by visually inspecting the wiring and connectors related to the oil change lamp circuit. Use a multimeter to test for continuity and check the functionality of the oil change lamp.
5. Can a blown fuse cause code B1377?
Yes, a blown fuse connected to the oil change lamp circuit can cause the circuit to fail and trigger this code.
6. Is it safe to drive with code B1377?
Yes, as this code does not affect engine performance, but you may not receive timely reminders for oil changes, which could lead to long-term engine damage.
7. What repairs can fix code B1377?
Repairs may include replacing the oil change reminder light, repairing or replacing damaged wiring, or replacing a faulty BCM.
8. How much does it cost to fix code B1377?
The cost depends on the specific issue. Replacing a light or fixing wiring might cost $50–$150, while a BCM replacement can cost $300–$800 or more.
9. Can I reset code B1377 without repairs?
Clearing the code with an OBDII scanner may temporarily turn off the check engine light, but the code will likely return if the underlying issue isn’t resolved.
10. How can I prevent code B1377 from recurring?
Regularly inspect and maintain the oil change lamp circuit, check wiring for damage, and ensure the lamp is functioning correctly during routine maintenance.
Discuss the causes and fixes for B1377 OBDII Code
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