Remote Starting System: Operation
WARNING: This page is about a different car, the 2022 Chrysler Voyager and 2022 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
All of the following conditions must be met before the engine will remote start:
Remote Start Operation:
- The Radio Frequency Hub (RFH) detects that the remote start button has been pressed twice,
- The RFH then broadcasts a message over the security K-line to the Keyless Ignition Node (KIN).
- The Body Control Module receives the "Starter Enable" request over the CAN-C bus.
- Once the following conditions have been met, the BCM broadcasts the request over the CAN-C bus:
- Shift lever in PARK
- Doors closed
- Hood closed
- HAZARD switch off
- BRAKE switch inactive (brake pedal not pressed)
- Battery at an acceptable charge level
- FOB PANIC button not pressed
- System not disabled from previous remote start event
- Vehicle theft alarm not active
- Ignition in OFF state
- Suitable fuel level condition
- The Powertrain Control Module (PCM) receives the "Starter Enable" request over the CAN-C bus.
- The PCM applies a Low Side Driver (LSD) as needed to energize the starter relay.
- Starter Relay K1 is actuated. This relay is powered by a dedicated 10A fuse in the Power Distribution Center (PDC) allowing the starter to crank.
The optional Smart Remote Start system - which operates from as far as 200 feet - not only starts the vehicle via fob activation, but also activates the climate control and (if equipped) the optional heated/ventilated seats and optional heated steering wheel depending on temperatures outside and inside the car.
The remote start antenna is used to provide a greater range for remote start operation and is connected to, and monitored by the RFH. The RFH will perform self- diagnostics on the attached remote start antenna to determine if it is connected to the RFH and drawing current.