Pinpoint Test Ag : The Powertrain Malfunction (Wrench) RTT (RECONFIGURABLE Telltale) Indicator Is Never Or Always On: Notes

WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.

Normal Operation and Fault Conditions

See Powertrain Malfunction (Wrench) RTT Warning Indicator. Refer to: Message Center - System Operation and Component Description .

If the transmission service required, engine service required, AWD service required, TRCM service required or body service required message is missing for less than 5 seconds, the IPC defaults the powertrain malfunction (wrench) RTT indicator to the last indication state (on or off), based upon the last message received.

If the transmission service required, engine service required, AWD service required, TRCM service required or body service required message is missing for 5 seconds or longer, the IPC defaults the powertrain malfunction (wrench) RTT indicator on.

Possible Sources

Communication concern
GWM concern
BCM concern
PCM concern
TRCM concern
IPC