Hyundai Elantra: Tire Pressure Monitoring System / TPMS Receiver Description and Operation

Hyundai Elantra AD (2016-2020) Service Manual / Suspension System / Tire Pressure Monitoring System / TPMS Receiver Description and Operation

Description

TPMS Receiver : BCM(body control module) integrated management

Mode

(1)

Virgin State

A.	The receiver as a sole part is shipped in this state. Replacement parts should therefore arrive in this state.

B.	In this state, there is no Auto-Location, no sensor wake-up, no sensor monitoring and no DTC monitoring.

C.	The state indicates that platform specific parameters must be written to the receiver and that sensors are un-learned.

(2)

Normal State

A.	In order for tire inflation state and DTC monitoring to occur, the receiver must be in this state.

B.	In this state, automatic sensor location / learning is enabled.

Overview

A.	Learn TPMS sensor for under inflation monitoring automatically.

B.	Uses sensor information, distance travelled, background noise levels, Auto-learn status, short / open circuit output status, vehicle battery level, internal receiver states to determine if there is a system or a vehicle fault.

Operation

General Function

A.	Auto-learn takes place only once per Ignition cycle.

B.	On successful completion, 4 road wheel sensor ID's are latched into memory for monitoring.

C.	Until Auto-learn completes, previously learned sensors are monitored for under inflation / leak warnings.

General Conditions to Learn New Sensors :

A.	Receiver must determine that it is confident that sensor is not temporary : a. Uses vehicle speed. b. Uses confidence reduction of previously learned sensors.

B.	Typical time at driving continuously over 15.5 mph(25 kph) to learn a new sensor is up to 20 minutes.

General Conditions to Un-Learn a sensor that is removed :

A.	It takes less than 20 minutes at 15.5 mph(20~30 kph).

B.	Confidence reduction is dependent on time which vehicle is driven at speed greater than or equal to 12.4 mph (20 ~ 30 kph).

TPMS Sensor Repair procedures

Removal 1. Remove the valve core and deflate the tire. 2. Remove the side of the tire bead area from the wheel using tire changing machine . • The tire bead should ...

TPMS Receiver Repair procedures

Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the glove box. (Refer to Body - "Glove Box Upper Cover Assembly") 3. Remove the smart key unit. (Refer to Body - "Smart ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Seat Belt Buckle Switch (BS) Repair procedures
Removal 1. Disconnect the battery negative cable, and wait for at least three minutes before beginning work. 2. Remove the front seat assembly. (Refer to Body - "Front Seat Assembly") 3. Remove the seat belt buckle switch (A) after loosening the seat belt buckle mounting bolt. Installa ...

Hyundai Elantra AD (2016-2020) Owners Manual: Main components of the Occupant Classification System
A detection device located within the front passenger seat cushion. Electronic system to determine whether the passenger air bag systems should be activated or deactivated. An indicator light located on the instrument panel which illuminates the words "PASSENGER AIR BAG OFF" i ...