Test T: The Wrench Indicator is Never/Always On

PINPOINT TEST T: THE WRENCH INDICATOR IS NEVER/ALWAYS ON

T1-T3:

Normal Operation
The instrument cluster receives the wrench warning indicator status from the powertrain control module (PCM) for the electronic throttle control (ETC) concerns and the transmission control module (TCM) for transaxle concerns over the communication network. When a system concern is detected, the PCM or the TCM sets a DTC and sends the instrument cluster a command signal to illuminate the wrench warning indicator.

Possible Causes
- PCM
- Instrument cluster