General Information

Tire Pressure Monitoring
C1611 Vehicle signal(VSS) time out - General Information

Component Location





General Description

The TPMS system is the shorten word of Tire Pressure Monitoring System. This system monitors the pressure of the tire and when it drops below a certain pressure, the TPMS ECU makes the warning lamp turn on for notifying the driver. This system consists of TPMS ECU(or TPMS Receiver), Initiators and TPMS sensors. Among components of TPMS system, the TPMS sensor is installed at each wheel rim. and its role is to measure the air pressure and the temperature of the tire and then it transmits its signals to TPMS ECU. The communication from TPMS sensors is done via RF(Radio Frequency) at a frequency.
The TPMS ECU gets signals of the vehicle speed and then uses thoses for auto-learning and judgment for DTC.

DTC Description

The TPMS ECU sets DTC B1611 if vehicle speed signal has not been received through the CAN signal.

DTC Detecting Condition





Diagnostic Circuit Diagram










Signal Waveform & Data