B1918 Code - Air Bag Memory Clear Circuit Open
Quick Answer
The Air Bag Control Module monitors the Air Bag Memory Clear Circuit. Common causes include Faulty Air Bag Control Module, Air Bag Control Module harness is open or shorted, Air Bag Control Module 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
- B1918 indicates Air Bag Memory Clear Circuit Open.
- Common causes
- Common causes include Faulty Air Bag Control Module, Air Bag Control Module harness is open or shorted, Air Bag Control Module 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 B1918 Description
What are the Possible Causes of the DTC B1918?
- Faulty Air Bag Control Module
- Air Bag Control Module harness is open or shorted
- Air Bag Control Module circuit poor electrical connection
How to Fix the DTC B1918?
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 B1918 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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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 B1918 Code
What does the OBDII code B1918 mean?
B1918 indicates an issue with the airbag system, specifically related to the "Air Bag Memory Clear Circuit Open," which suggests a malfunction in the circuit responsible for clearing airbag memory faults.
What are the common symptoms associated with the B1918 code?
Symptoms may include the airbag warning light being illuminated on the dashboard and possible issues with airbag deployment in the event of a collision.
What could cause the B1918 code to trigger?
Common causes include a faulty airbag control module, damaged wiring or connectors in the airbag system, or a blown fuse related to the airbag system.
How can I diagnose the B1918 code?
To diagnose B1918, use an OBDII scanner to confirm the code, inspect the wiring and connectors related to the airbag system, and check for any other related trouble codes.
What are some repair tips for fixing the B1918 code?
Repair tips include checking and repairing any damaged wiring, ensuring all connectors are secure and free of corrosion, and replacing the airbag control module if it's determined to be faulty.
Can I drive my vehicle with the B1918 code?
It is not recommended to drive a vehicle with the B1918 code, as it may indicate that the airbag system is compromised, which could affect safety in an accident.
Will clearing the B1918 code solve the problem?
Clearing the code may temporarily turn off the warning light, but it will not fix the underlying issue. Proper diagnosis and repair are necessary to resolve the problem.
How much does it typically cost to fix the B1918 code?
Repair costs can vary widely depending on the cause of the issue, ranging from a simple wiring repair to replacing the airbag control module, which can cost several hundred dollars.
Is the B1918 code specific to certain vehicle makes or models?
The B1918 code can appear in various makes and models, but its exact implications and diagnostics may differ depending on the vehicle manufacturer’s specifications.
Discuss the causes and fixes for B1918 OBDII Code
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