Pinpoint Test AF : The TPMS (Tire Pressure Monitoring System) Warning RTT (RECONFIGURABLE Telltale) Indicator Is Never Or Always On
- Normal Operation and Fault Conditions
See TPMS Warning. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
If the tire pressure warning indicator message is missing for 5 seconds or less, the TPMS warning RTT warning indicator remains in its last indication state (on or off), based upon the last message received.
If the tire pressure warning indicator message is missing for 5 seconds or longer, the IPC flashes the TPMS warning RTT indicator for approximately 75 seconds, then illuminates the indication.
Possible Sources
- Low tire pressure
- Communication concern
- TPMS
- BCM
- GWM
- IPC
- AF1 CHECK THE TIRE PRESSURE
- Verify the tire pressure in all tires meets the recommended tire pressures on the vehicle certification label. REFER to: Identification Codes .
Do all the tires meet the recommended tire pressures?
Yes GO to AF2 No CORRECT the tire pressures. - AF2 CHECK THE MESSAGE CENTER OPERATION
- Ignition ON.
- Close all doors, liftgate and hood.
- Clear all message center warnings by pressing the OK button for each warning present.
- Monitor the door ajar RTT warning indicator.
- Open the driver door.
- Clear the message center popup warning.
- Monitor the door ajar RTT warning indicator.
Is the door ajar RTT warning indicator off with the door closed, and on with the door open?
Yes GO to AF3 No GO to Pinpoint Test A - AF3 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Using a diagnostic scan tool, perform the IPC self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to the IPC DTC Chart. Refer to Diagnostic Trouble Code (DTC) Chart No GO to AF4 - AF4 PERFORM THE BCM (BODY CONTROL MODULE) SELF-TEST
- Using a diagnostic scan tool, perform the BCM self-test.
Are any DTCs recorded?
Yes REFER to: Body Control Module (BCM) . No GO to AF5 - AF5 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to: Communications Network . No If the TPMS warning RTT indicator is never on, the system is operating correctly. If the TPMS warning RTT indicator is always on, DIAGNOSE the TPMS. REFER to: Tire Pressure Monitoring System (TPMS) .