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

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 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 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
• AWD module concern (with torque vectoring differential)
• BCM concern
• PCM concern (without torque vectoring differential)
• IPC