Hyundai Elantra: Tire Pressure Monitoring System / TPMS Receiver Description and Operation
TPMS Receiver : BCM(body control module) integrated management
| 1. |
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. |
|
|
| 2. |
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. |
|
| 1. |
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. |
|
| 2. |
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. |
|
| 3. |
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). |
|
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 ...
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 ...
TPMS Sensor Repair procedures
TPMS Receiver Repair procedures