Operation

OPERATION

The remote start indicator gives an indication to the vehicle operator of the system status. This indicator is controlled by the instrument cluster logic circuit based upon cluster programming and electronic messages received over the Controller Area Network (CAN) data bus from the Front Control Module (FCM) and the Wireless Ignition Node (WIN) (also known as the Sentry Key Immobilizer Module/SKIM, the Sentry Key REmote Entry Module/SKREEM or the Wireless Control Module/WCM).

The remote start indicator function of the reconfigurable dot matrix Organic Light Emitting Diode (OLED) display unit is completely controlled by the instrument cluster logic circuit, and that logic will allow this indicator to operate whenever the instrument cluster receives a battery current input on the fused B(+) circuit. Therefore, the OLED remote start indications can be illuminated regardless of the ignition switch position. The instrument cluster will turn ON the remote start indicator for the following reasons:

- Key Not In Ignition - Remote Start Active Messages - Each time the cluster receives a combination of electronic key not inserted and remote start active messages from the FCM, the INSERT KEY TURN TO ON textual message is displayed. The message is displayed for about five seconds, until the cluster arbitrator logic determines that another display request has priority, or until the key is inserted into the ignition, whichever occurs first.
- Key In Ignition - Remote Start Active Messages - Each time the cluster receives a combination of electronic key inserted and remote start active messages from the FCM and ignition LOCK or ignition OFF messages from the WIN, the TURN TO ON textual message is displayed. The message is displayed for about five seconds, until the cluster arbitrator logic determines that another display request has priority, or until the ignition is turned to the ON position, whichever occurs first.

The FCM continually monitors the remote start system inputs and the WIN to determine the proper outputs to the remote start components. The FCM then sends the proper lamp-ON or lamp-OFF message to the ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN).

For proper diagnosis of the remote start system, the WIN, the FCM, the EMIC, the CAN data bus or the electronic communication related to remote start indicator operation a diagnostic scan tool is required. Refer to the appropriate diagnostic information.