Kia Cee'd: Tire Pressure Monitoring System / Description and operation
TREAD Lamp
| – |
Tire Under Inflation / Leak Warning.
|
| 1. |
Turn on condition
| • |
When tire pressure is below allowed threshold
|
| • |
When rapid leak is detected by the sensor.
|
| • |
Indicates that tire needs to be re-inflated to placard pressure
/ repaired.
|
|
| 2. |
Turn off condition
| • |
Under-inflation ; When tire pressure is above (warning threshold
+ hysteresis).
|
| • |
Rapid Leak ; When tire pressure is above (leak warning threshold).
|
|
DTC Warning
| 1. |
Turn on condition
| • |
When the system detects a fault that is external to the receiver/
sensor.
|
| • |
When the system detects a receiver fault.
|
| • |
When the system detects a sensor fault.
|
|
| 2. |
Turn off condition
| • |
DTC occurs, the fault continues until the symptoms resolve,
and that the warning light illuminates DTC police, crying, Demotion,
if two Clear conditions and assists in Historic, warning light
is extinguished.
|
| • |
'Non critical' faults are those that can occur temporarily e.g.
vehicle battery under voltage. The lamp is therefore turned
off when the DTC demotion condition occurs.
|
|
| • |
When driving in high altitude grades, it is natural for the
atmospheric pressure to decrease. Therfore, please check the
tire pressure and add more air as necessary. Additionally required
tire air pressure per km above sea level : 1.5 psi/km
|
| • |
Tire pressure can be decreased naturally due to decrease in
ambient temperature (especially in winter). In this case, fill
tires with air to the specification if warning lamp is illuminated
as this is natural phenomenon.
|
|
System Fault
| 1. |
General Function
| • |
The system monitors a number of inputs across time in order
to determine that a fault exists.
|
| • |
Faults are prioritized according to which has the most likely
cause.
|
| • |
Certain faults are not covered through DTC. The main ones are:
|
| a. |
Sensor thermal shutdown (over 257°F/125°C).
|
| b. |
Ignition Line stuck ; requires observation of lamps
at Ignition ON to diagnose.
|
|
|
Components
1. Receiver
2. TPMS Sensor
3. TPMS Sensor
4. TPMS Sensor
5. TPMS Sensor
...
TPMS Inspection method
Inspection
Find the inspection number by referring to the table above.
...
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