Normal Operation

The start/stop switch is hardwired to the Remote Function Actuator (RFA) module and is used to either start the vehicle or switch the ignition modes. The start/stop switch has a run LED that is illuminated when ignition is switched out of the OFF mode, or the engine is started. The LED flashes as a confirmation when the Intelligent Access (IA) key programming mode is entered. The start/stop switch run LED receives voltage and ground from the RFA module.

• DTC B125D:11 (Ignition Run LED Circuit: Short To Ground) - a continuous memory and on-demand DTC that sets when the run LED output circuit from the RFA module is shorted to ground.
• DTC B125D:15 (Ignition Run LED Circuit: Short To Battery or Open) - an on-demand DTC that sets when the run LED output circuit from the RFA module is shorted to battery or is open.

This pinpoint test is intended to diagnose the following: 

• Wiring, terminals or connectors
• Start/stop switch
• RFA module