B106B Code - Tire Pressure Sensor Low Battery
Quick Answer
If there is a fault in the Tire Pressure Monitoring System (TPMS), such as a damaged or missing sensor(s), damaged module or a communication issue within the vehicle, DTCs are set in the Smart Junction Box (SJB), the TPMS warning indicator will flash for 70 seconds and then remain ON solid when the ignition switch is turned to the ON position and the message center (if equipped) will display TIRE PRESSURE SENSOR FAULT. Common causes include Faulty Tire Pressure Sensor(s), Tire Pressure Sensor Battery. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- B106B indicates Tire Pressure Sensor Low Battery.
- Common causes
- Common causes include Faulty Tire Pressure Sensor(s), Tire Pressure Sensor Battery.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code B106B Description
The tire pressure sensor is battery powered.
This Diagnostic Trouble Code (DTC) may be set when attempting to train a tire pressure sensor(s) with a low battery.
What are the Possible Causes of the DTC B106B?
- Faulty Tire Pressure Sensor(s)
- Tire Pressure Sensor Battery
How to Fix the DTC B106B?
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 B106B 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
- B106B Ford — Tire Pressure Sensor Low Battery
- B106B Lincoln — Tire Pressure Sensor Low Battery
- B106B Mercury — Tire Pressure Sensor Low Battery
Frequently Asked Questions about B106B Code
What does OBDII code B106B mean?
Code B106B indicates that the tire pressure sensor in one or more wheels has a low or depleted battery, which affects its ability to transmit accurate tire pressure data to the vehicle’s system.
What are the symptoms of code B106B?
Common symptoms include a tire pressure warning light on the dashboard, inaccurate or missing tire pressure readings, and potential issues with the TPMS system.
What causes a tire pressure sensor’s battery to go low?
The most common cause is the natural depletion of the sensor’s non-replaceable battery over time, typically after 5-10 years of use.
How do I fix code B106B?
The tire pressure sensor with the low battery must be replaced. Once replaced, the TPMS system may need to be reprogrammed or relearned using a TPMS tool.
Can I replace the tire pressure sensor battery instead of the entire sensor?
No, the batteries in most tire pressure sensors are sealed and cannot be replaced. The entire sensor must be replaced when the battery is low.
Is it safe to drive with code B106B active?
Yes, but you may not receive accurate tire pressure information, which could increase the risk of driving on improperly inflated tires and compromise safety.
How much does it cost to replace a tire pressure sensor?
The replacement cost typically ranges from $50 to $150 per sensor, including parts and labor, depending on your vehicle and location.
How can I prevent tire pressure sensor battery issues?
Tire pressure sensor batteries cannot be recharged or replaced, but you can minimize issues by replacing sensors preemptively during tire replacements after 5-7 years of use.
Will the code clear itself after replacing the sensor?
The code may clear automatically after replacing the faulty sensor and performing the TPMS relearn procedure, but in some cases, it may need to be cleared manually with a diagnostic tool.
Can I use a universal TPMS sensor to fix code B106B?
Yes, universal TPMS sensors are available, but they must be properly programmed and compatible with your vehicle’s TPMS system to function correctly.
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