P3107 Code - Airbag ECU Communication Circuit Malfunction Automatic Transmission
Quick Answer
The Hybrid Vehicle (HV) Electronic Control Unit (ECU) detects a malfunction of the collision signal circuit from the center airbag sensor and gives a warning to the driver. Common causes include Faulty Center Airbag Sensor, Center Airbag Sensor harness is open or shorted, Center Airbag 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
- P3107 indicates Airbag ECU Communication Circuit Malfunction Automatic Transmission.
- Common causes
- Common causes include Faulty Center Airbag Sensor, Center Airbag Sensor harness is open or shorted, Center Airbag 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 P3107 Description
What are the Possible Causes of the DTC P3107?
- Faulty Center Airbag Sensor
- Center Airbag Sensor harness is open or shorted
- Center Airbag Sensor circuit poor electrical connection
How to Fix the DTC P3107?
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
P3107:214 Open or +B short in communication circuit between center airbag sensor and HV control ECU
P3107:215 Abnormal communication signals between center airbag sensor and HV control ECU
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P3107 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 P3107 code?
Need more information on how to fix the P3107 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P3107 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P3107 Lexus — Airbag ECU Communication Circuit Malfunction Automatic Transmission
- P3107 Toyota — Airbag ECU Communication Circuit Malfunction Automatic Transmission
Frequently Asked Questions about P3107 Code
What does the OBDII code P3107 mean?
1. P3107 indicates a communication malfunction in the airbag ECU circuit, often related to the automatic transmission system. 2.
What are the common symptoms of code P3107?
Symptoms may include an illuminated check engine light, airbag warning light, or issues with the automatic transmission shifting. 3.
What causes code P3107 to appear?
This code is often caused by faulty wiring, poor connections, a malfunctioning airbag ECU, or issues with the transmission control module (TCM). 4.
Can I drive with OBDII code P3107?
Driving with this code is not recommended, as it may indicate safety system malfunctions or impact vehicle performance. 5.
How do I diagnose code P3107?
Diagnosis involves checking for damaged wiring, loose connectors, and performing communication tests between the airbag ECU and TCM. 6.
What tools are needed to troubleshoot P3107?
A high-quality OBDII scanner, a multimeter, and wiring diagrams for your vehicle are essential for proper diagnosis. 7.
How can I fix code P3107?
Repairs may include fixing or replacing damaged wiring, reprogramming or replacing the airbag ECU, or addressing TCM-related issues. 8.
Is P3107 specific to certain vehicles?
Yes, this code is more common in vehicles with integrated airbag and transmission communication systems, but it varies by make and model. 9.
How much does it cost to fix code P3107?
Repair costs can range from $100 for simple wiring repairs to over $1,000 if the airbag ECU or TCM needs replacement. 10.
Can a weak battery cause code P3107?
Yes, a weak or failing battery can disrupt communication circuits and trigger this code.
Discuss the causes and fixes for P3107 OBDII Code
Code P3107 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.
