Tech Tip: TPMS Relearn Procedures

Tech Tip: TPMS Relearn Procedures

Double-check as you go that the steps are done correctly. There are no shortcuts to the relearn process.

Relearns are a necessary step but can be complicated as every vehicle model has a unique set of actions. Each step must be performed in a specific sequence in order for it to work properly. All too often, it is the relearn procedure that causes delays in TPMS service. 

There are a few things you can do to ensure the relearning process is as efficient as possible and help avoid wasted time in the bay. First, it is important to understand the difference between relearning a vehicle and programming a sensor. 

If you use a programmable sensor, the sensor is completely blank and needs to be programmed to the specific MMY of the vehicle being serviced using a compatible and updated TPMS tool. Relearning a vehicle is the process of telling the vehicle which sensor is located in each tire. This ensures the vehicle is reading the correct pressure and displaying their proper locations. 

Steps To A More Efficient Relearn Process:

Make sure you follow the relearn entirely and in the proper sequence. Double-check as you go that the steps are done correctly. There are no shortcuts to the relearn process.

Call right away. Don’t waste time. If you try everything and still can’t turn off the TPMS light, don’t wait to give your sensor manufacturer’s tech line a call and let them walk you through it.

When you call, make sure you have the tenth character of the VIN number ready to share. It symbolizes the model year and will be needed by your service representative.

Have your Diagnostic Trouble Codes (DTCs) ready to share with the service representative at the time of the call.

Make sure you know which sensor was originally removed from the vehicle and have it ready.

Also, consider creating or using your sensor manufacturer’s best practice sheet each and every time a TPMS service is performed. Your sensor manufacturer plays an important role in your success with TPMS, so ensure you are getting the proper resources from them.

Courtesy of Tire Review Magazine

You May Also Like

Detecting Misfire And Knock Conditions

Knock sensors are mounted on the block near the base of the cylinder head.

The knock sensor is a piezoelectric accelerometer that acts as a microphone on the engine. It converts vibrations into alternating current (AC) signal. When the crystal inside the sensor is vibrated, it produces an AC voltage. The greater the vibration or shock, the higher the voltage and frequency.

Mercedes Ignition Coil Pack Diagnostics

Replacing a single coil might not be the best approach to curing an engine of a chronic misfire.

Chrysler’s Totally Integrated Power Module

The TIPM is on the CAN bus, any issues with the communication between the ECM, ABS and BCM can cause problems with the TIPM.

Mercedes EQS Service Opportunities

EQ is the EV brand for Mercedes. It is the equivalent of Audi’s Etron or VW’s iD brands.

ADAS Calibration Tips

Here are 10 tips to follow during ADAS Calibration.

Other Posts

Tesla Model 3 TPMS Service

Resetting and programming TPMS sensors for a Tesla is a lot like any other vehicle, and the challenge is still the same: keeping the light off.

TPMS Tools and Sensors

Transform TPMS with advanced diagnostics and sensor programming. This video is sponsored by Bosch.

The December Digital Edition Is Available Today

Each issue includes technical content from Underhood Service.

Chassis Control Modules After Reconnecting Battery

To resolve the issue, fully disconnect the negative lead from the battery terminal.