PINPOINT TEST V : The Powertrain Malfunction (Wrench) Message Center Warning Indicator Is Never or Always On: Notes

Diagnostic Overview

Refer to Message Center , Powertrain Malfunction (Wrench) Message Center Indicator.

NOTE: If DTC U0100:00 sets in the IPC, other symptoms can also be present such as an inoperative speedometer, tachometer or temperature gauge.

Normal Operation and Fault Conditions

If the engine service required, transmission malfunction indicator request or AWD lock status message is missing for less than 5 seconds, the powertrain malfunction (wrench) message center warning indicator remains in the last indication mode (on/off) based upon the last known good message.

If the engine service required, transmission malfunction indicator request or AWD lock status message is missing for 5 seconds or longer, the IPC sets DTC U0100:00 and defaults the powertrain malfunction (wrench) message center warning indicator on.