General Information

Component Location





General Description

The TPMS receiver unit must provide six outputs continuously to drive the indicator lamps. One of the output turn the TREAD indicator lamp on when pressure in one or more tires associated with the TPMS receiver unit have reported a pressure below the warning level threshold. Four of them turn the LED indicator lamp on when pressure in corresponding tire is below the warning level threshold. The other output turn the TPMS Warning indicator bulb on when the TPMS receiver unit has detected a system fault.
[Turn the LED indicator lamp on]
1 When front left tire pressure is below allowed threshold.
2 When rapid leak is detected by the front left sensor.
3 Indicates that tire needs to be re-inflated to placard pressure / repaired.
[Turn the LED indicator lamp off]
1 Under-inflation : When front left tire pressure is above (warning threshold + hysteresis).
2 Leak : When front left tire pressure is above (leak warning threshold) OR on Ignition cycle off to on.

DTC Description

This DTC indicates that the LED (Tire Under Inflation / Leak Warning) lamp is short circuit to 12V and therefore cannot be turned on. The most likely failure is harness / instrument cluster / connector / receiver short circuit.

DTC Detecting Condition





Schematic Diagram