B1464 Code - Seat Belt Switch Circuit Short To Battery
Quick Answer
The Body Control Module (BCM) monitors the Seat Belt Switch. Common causes include Faulty Seat Belt Switch, Seat Belt Switch harness is open or shorted, Seat Belt Switch 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
- B1464 indicates Seat Belt Switch Circuit Short To Battery.
- Common causes
- Common causes include Faulty Seat Belt Switch, Seat Belt Switch harness is open or shorted, Seat Belt Switch 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 B1464 Description
What are the Possible Causes of the DTC B1464?
- Faulty Seat Belt Switch
- Seat Belt Switch harness is open or shorted
- Seat Belt Switch circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B1464?
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 B1464 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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Information for Specific Makes
- B1464 Chrysler — Channel 1 Audio Speaker Output Circuit Shorted Together
- B1464 Dodge — Channel 1 Audio Speaker Output Circuit Shorted Together
- B1464 Ford — Charge Port Light Ring LED Segment 4 No Sub Type Information
- B1464 Jeep — Channel 1 Audio Speaker Output Circuit Shorted Together
- B1464 Lincoln — Charge Port Light Ring LED Segment 4 No Sub Type Information
- B1464 Mercury — Charge Port Light Ring LED Segment 4 No Sub Type Information
- B1464 RAM — Channel 1 Audio Speaker Output Circuit Shorted Together
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
Frequently Asked Questions about B1464 Code
1. What does the OBDII code B1464 mean?
B1464 indicates a short circuit to the battery in the seat belt switch circuit, which monitors the status of the seat belt buckle.
2. What are the common symptoms of B1464?
Symptoms may include the seat belt warning light staying on or not illuminating, malfunctioning seat belt chime, or failure of related safety features.
3. What causes the B1464 code to appear?
Common causes include damaged seat belt switch wiring, a faulty seat belt switch, or a short circuit caused by frayed or exposed wires.
4. Can a blown fuse cause the B1464 code?
While a blown fuse is uncommon for this code, it’s possible if the short circuit causes excessive current draw. Inspect the fuse related to the seat belt system.
5. Is it safe to drive with the B1464 code?
While the vehicle may still be drivable, the seat belt system may not function properly, which poses a safety risk. Addressing the issue promptly is recommended.
6. How do I diagnose the B1464 code?
Start by inspecting the seat belt switch and its wiring for visible damage. Use a multimeter to check for continuity and ensure there’s no short to the battery.
7. What repairs can fix the B1464 code?
Repairs may include replacing damaged wiring, repairing shorts or exposed wires, or replacing the faulty seat belt switch.
8. Can I clear the B1464 code without fixing the issue?
Clearing the code without resolving the underlying problem will only result in the code returning. Proper diagnosis and repair are required.
9. How much does it cost to repair the B1464 code?
The cost varies depending on the issue. Wiring repairs can be inexpensive, while replacing a seat belt switch may cost $100–$300, including parts and labor.
10. Can a faulty seat belt switch cause other issues?
Yes, a faulty seat belt switch can impact the functionality of safety systems like airbags, as some systems rely on seat belt status for deployment logic.
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