B1BB4 RAM Code - Passenger Air Bag Disable Switch Circuit High
Quick Answer
When the ignition is on, the Passenger Airbag MUX Switch Sense circuit supplies a 3 to 10 ms pulse every 100 ms across the On or Off switch resister to the Passenger Airbag MUX switch return circuit. Common causes include Faulty Passenger Air Bag Disable Switch, Passenger Air Bag Disable Switch harness is open or shorted, Passenger Air Bag Disable 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
- B1BB4 RAM indicates Passenger Air Bag Disable Switch Circuit High.
- Common causes
- Common causes include Faulty Passenger Air Bag Disable Switch, Passenger Air Bag Disable Switch harness is open or shorted, Passenger Air Bag Disable 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 B1BB4 RAM Description
What are the Possible Causes of the DTC B1BB4 RAM?
- Faulty Passenger Air Bag Disable Switch
- Passenger Air Bag Disable Switch harness is open or shorted
- Passenger Air Bag Disable Switch circuit poor electrical connection
- Faulty Occupant Restraint Controller (ORC)
How to Fix the DTC B1BB4 RAM?
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 B1BB4 RAM 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.
Need more information about the B1BB4 RAM code?
Need more information on how to fix the B1BB4 RAM code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1BB4 RAM code diagnosed by a professional: Find a repair shop in your area
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 B1BB4 RAM Code
1. What are the common symptoms of OBDII code B1BB4 RAM (Passenger Air Bag Disable Switch Circuit High)?
- The common symptoms include the airbag warning light illuminating on the dashboard and the passenger airbag being disabled.
2. What can cause the OBDII code B1BB4 RAM to trigger (Passenger Air Bag Disable Switch Circuit High)?
- The code is typically triggered by a malfunction in the passenger air bag disable switch circuit, such as a short circuit or high resistance.
3. How can I diagnose the Passenger Air Bag Disable Switch Circuit High issue?
- Diagnosing the issue involves checking the wiring and connections related to the passenger air bag disable switch, as well as testing the switch itself for proper functionality.
4. Can I still drive my vehicle with the OBDII code B1BB4 RAM active?
- It is not recommended to drive the vehicle with the code active, as the passenger airbag may be disabled, compromising occupant safety in the event of an accident.
5. How can I repair the Passenger Air Bag Disable Switch Circuit High issue?
- Repairing the issue may involve replacing the passenger air bag disable switch, repairing damaged wiring or connections, or resetting the airbag system after fixing the underlying cause.
6. Is it safe to reset the OBDII code B1BB4 RAM without addressing the underlying issue?
- It is not recommended to reset the code without addressing the underlying issue, as doing so may result in the problem recurring and potentially affecting the proper function of the airbag system.
7. Can a DIY enthusiast fix the Passenger Air Bag Disable Switch Circuit High problem?
- Depending on their skill level and access to tools, a DIY enthusiast may be able to diagnose and repair the issue, but it is recommended to consult a professional for complex electrical system repairs.
8. Are there any recalls or technical service bulletins related to OBDII code B1BB4 RAM?
- It is advisable to check with the vehicle manufacturer or authorized dealerships for any recalls or technical service bulletins related to the specific code and issue.
9. How much does it typically cost to repair the Passenger Air Bag Disable Switch Circuit High problem?
- The cost of repair can vary depending on the extent of the issue, parts needed, and labor rates, so it is recommended to obtain quotes from automotive professionals for an accurate estimate.
10. Can the OBDII code B1BB4 RAM be intermittent or permanent?
- The code can be either intermittent or permanent, depending on the underlying cause and whether the issue is resolved or still present in the vehicle's system.
Discuss the causes and fixes for B1BB4 RAM OBDII Code
Code B1BB4 RAM comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
