System Fault - Hyundai GENESIS COUPE BK 2010 Manual

TREAD Lamp
- Tire Under Inflation / Leak Warning.
1. Turn on condition
A. When tire pressure is below allowed threshold.
B. When rapid leak is detected by the sensor.
C. Indicates that tire needs to be re-inflated to placard pressure / repaired.
2. Turn off condition
A. Under-inflation ; When tire pressure is above (warning threshold + hysteresis).
B. Rapid Leak ; When tire pressure is above (leak warning threshold).
TPMS warning can be light on because the tire pressure declined by low temperature in the cold weather.
DTC Warning
1. Turn on condition
A. When the system detects a fault that is external to the receiver/ sensor.
B. When the system detects a receiver fault.
C. When the system detects a sensor fault.
2. Turn off condition
A. If the fault is considered as 'critical', then the lamp is held on throughout the current Ignition cycle (even if the
DTC has been demoted). This is because it is important to bring the problem to the drivers attention. On the
following Ignition cycle, the demotion conditions will be re-checked. If the demotion conditions occur, the lamp
will be turned off. It will be held on until DTC demotion checking is completed.
B. '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.

System Fault

1. General Function
A. The system monitors a number of inputs across time in order to determine that a fault exists.
B. Faults are prioritized according to which has the most likely cause.
C. Certain faults are not covered through DTC. The main ones are:
1) Control module Micro-controller lock up ; requires observation of lamps at Ignition ON to diagnose.
2) Ignition Line stuck ; requires observation of lamps at Ignition ON to diagnose.
Suspension System > Tire Pressure Monitoring System > Schematic Diagrams
Schematic Diagram