B1B72 Jeep Code - Left Side Satellite Acceleration Sensor 1 Internal
Quick Answer
The number 1 side impact sensors are located in the B-pillar area just past the 1st row doors The impact sensors perform their own self-test using power supplied by the Occupant Restraint Controller (ORC) then communicates this status back to the ORC with periodic updates. Common causes include Faulty Left Side Impact Sensor 1, Left Side Impact Sensor 1 harness is open or shorted, Left Side Impact Sensor 1 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
- B1B72 Jeep indicates Left Side Satellite Acceleration Sensor 1 Internal.
- Common causes
- Common causes include Faulty Left Side Impact Sensor 1, Left Side Impact Sensor 1 harness is open or shorted, Left Side Impact Sensor 1 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 B1B72 Jeep Description
What are the Possible Causes of the DTC B1B72 Jeep?
- Faulty Left Side Impact Sensor 1
- Left Side Impact Sensor 1 harness is open or shorted
- Left Side Impact Sensor 1 circuit poor electrical connection
- Faulty Occupant Restraint Controller (ORC)
How to Fix the DTC B1B72 Jeep?
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 B1B72 Jeep 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 B1B72 Jeep code?
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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 B1B72 Jeep Code
1. What does the OBDII code B1B72 mean on a Jeep?
The B1B72 code indicates an issue with the Left Side Satellite Acceleration Sensor 1, typically related to an internal malfunction or communication problem.
2. What are the common symptoms of the B1B72 code?
Common symptoms include an illuminated airbag warning light, possible deactivation of the airbag system, or error messages related to the vehicle's safety restraint system.
3. What causes the B1B72 code to appear?
The code is often caused by a faulty left side acceleration sensor, damaged wiring, corroded connectors, or an issue with the airbag control module.
4. Can I drive my Jeep with the B1B72 code?
While the vehicle may still be drivable, the airbag system may not function properly, posing a safety risk in the event of a collision. It's best to address the issue promptly.
5. How do I diagnose the B1B72 code?
Diagnosing involves scanning for codes, inspecting the left side acceleration sensor and its wiring, and testing for proper communication and voltage at the sensor.
6. How do I fix the B1B72 code on my Jeep?
Repairs may include replacing the faulty acceleration sensor, repairing damaged wiring or connectors, or recalibrating the airbag control module.
7. Where is the Left Side Satellite Acceleration Sensor 1 located?
The sensor is typically mounted on the left side of the vehicle, near the B-pillar or floor area. Refer to your vehicle’s service manual for the exact location.
8. Can a loose connection trigger the B1B72 code?
Yes, loose or corroded wiring connections can cause the sensor to malfunction and trigger the code.
9. Does clearing the code fix the problem?
Clearing the code may temporarily turn off the warning light, but the underlying issue must be resolved to prevent the code from returning.
10. How much does it cost to repair the B1B72 code?
Repair costs vary depending on the issue, but replacing the sensor typically ranges from $100 to $300, plus labor. Additional repairs for wiring or module issues may increase the cost.
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