B1B40 Code - Left Front Outer Parking Aid Sensor
Quick Answer
The Parking Assist Control Module (PAM) monitors the Left Front Outer Parking Aid Sensor. Common causes include Faulty Left Front Outer Parking Aid Sensor, Left Front Outer Parking Aid Sensor harness is open or shorted, Left Front Outer Parking Aid Sensor 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
- B1B40 indicates Left Front Outer Parking Aid Sensor.
- Common causes
- Common causes include Faulty Left Front Outer Parking Aid Sensor, Left Front Outer Parking Aid Sensor harness is open or shorted, Left Front Outer Parking Aid Sensor 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 B1B40 Description
What are the Possible Causes of the DTC B1B40?
- Faulty Left Front Outer Parking Aid Sensor
- Left Front Outer Parking Aid Sensor harness is open or shorted
- Left Front Outer Parking Aid Sensor circuit poor electrical connection
- Faulty Parking Assist Control Module (PAM)(Integral to the Body Control Module (BCM))
How to Fix the DTC B1B40?
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.
Code Tech Notes
B1B40:14 Left Front Outer Parking Aid Sensor Circuit Short To Ground Or Open
B1B40:96 Left Front Outer Parking Aid Sensor Component Internal Failure
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1B40 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
- B1B40 Ford — Left Front Outer Parking Aid Sensor
- B1B40 Land Rover — Left Front Outer Parking Aid Sensor
- B1B40 Lincoln — Left Front Outer Parking Aid Sensor
- B1B40 Mercury — Left Front Outer Parking Aid Sensor
Frequently Asked Questions about B1B40 Code
1. What does the OBDII code B1B40 mean?
The B1B40 code indicates an issue with the Left Front Outer Parking Aid Sensor, typically related to a malfunction or communication problem.
2. What are the symptoms of code B1B40?
Symptoms may include the parking aid system not working correctly, false alerts, or no response from the left front outer sensor.
3. What causes the B1B40 code?
Common causes include a faulty parking aid sensor, wiring issues, a damaged sensor connector, or a malfunction in the parking aid module.
4. How can I diagnose the B1B40 code?
Diagnosis involves visually inspecting the sensor and wiring, testing the sensor with a multimeter, and using a scan tool to check for additional codes or system faults.
5. Can I drive my car with the B1B40 code?
Yes, you can drive the car, but the parking aid system may not function properly, increasing the risk of minor collisions during parking.
6. How do I fix the B1B40 code?
Repairs may include replacing the left front outer parking aid sensor, repairing damaged wiring or connectors, or recalibrating the parking aid system.
7. How much does it cost to fix code B1B40?
Repair costs vary, but replacing a parking aid sensor typically costs $100–$300, including parts and labor.
8. Can a dirty parking sensor trigger the B1B40 code?
Yes, dirt or debris on the sensor can cause it to malfunction. Cleaning the sensor may resolve the issue.
9. Do I need to reprogram the system after replacing the sensor for B1B40?
In some vehicles, the parking aid system may require recalibration or reprogramming after sensor replacement. Check your vehicle's service manual.
10. What tools do I need to fix the B1B40 code?
You may need a multimeter, a scan tool capable of reading manufacturer-specific codes, and basic tools for accessing and replacing the sensor.
Discuss the causes and fixes for B1B40 OBDII Code
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