PINPOINT TEST Q : The TPMS Warning Indicator Is Never or Always On: Notes
NOTE:
The Tire Pressure Monitor (TPM) is also known as the Radio Transmitter Module (RTM).
Diagnostic Overview
Refer to Instrument Panel Cluster (IPC) , TPMS Warning Indicator.
NOTE:
If DTC U0140:00 sets in the IPC, other symptoms can also be present such as an inoperative high beam indicator, LH -RH turn indicators, instrument panel backlighting, and door ajar indication.
Normal Operation and Fault Conditions
If the tire pressure status message is missing for 5 seconds or less, the TPMS warning indicator remains in its last indication state (on or off) based on the last known good message received.
If the tire pressure status message is missing for more than 5 seconds, the IPC sets DTC U0140:00 and flashes the TPMS warning indicator for approximately 75 seconds then illuminates the TPMS warning indicator.