Description And Operation

The Radio Frequency Hub (RFH) has the following features:

• Keyless Go. Refer to KEYLESS GO, DESCRIPTION AND OPERATION .
• Tire Pressure Monitoring (TPM). Refer to TIRE PRESSURE MONITORING, DESCRIPTION AND OPERATION .
• Passive Entry (PE). This information is listed below.

Courtesy of CHRYSLER GROUP, LLC

The RFH is located under the dashboard cover above the center display of the dashboard (shown in red in the black circle).

Courtesy of CHRYSLER GROUP, LLC

An overhead view of the RFH location in the IP.

Passive Entry (PE) Function 

The PE function allows the user to lock and unlock the doors simply by interacting with the front door handle. The doors are unlocked or locked if the RFH detects the presence of a valid FOBIK near the vehicle.

Up to 8 programmed FOBIKs can be stored and recognize by the RFH.

Courtesy of CHRYSLER GROUP, LLC

PE Antenna Locations
1 - Antenna on the rear door left side	4 - Antenna on center floor console
2 - Antenna on the rear door right side	5 - Antenna on rear cross-member (trunk area)
3 - Antenna on cross-member behind the rear fascia

Each Passive Entry (PE) antenna is connected to the RFH with two wires.

Courtesy of CHRYSLER GROUP, LLC

The front door handles are equipped with an internal proximity capacitance sensor which detects the user's hand.

The sensor generates an electric voltage whenever the user's fingers are detected in the proximity of the antenna.

When the RFH module receives the signal from the sensor, the RFH checks for the presence of a valid FOBIK.

Courtesy of CHRYSLER GROUP, LLC

The RFH uses a Low Frequency (LF) radio signals that interrogates the FOBIK which replies with a High-Frequency (HiFi) radio signal. If the FOBIK is valid, the RFH will request that the BCM to unlock the doors.

If the FOBIK battery voltage is too low, and cannot be identified by the RFH, there is an emergency procedure that permits the vehicle to be started.

If the key fob battery is discharged, proceed as follows to start the vehicle:

Lift the front armrest and lay the key fob on the key fob outline found on the floor of the armrest compartment while pushing the START/STOP button to start the ignition.

Courtesy of CHRYSLER GROUP, LLC

A tactile button is present on the front door handles which allows the user to request centralized locking of all doors. By pressing the button, the RFH modules sends the request to lock the doors to the BCM. The door lock request will be sent by RFH only if there is a presence of a valid FOBIK.

If a valid FOBIK is inside the passenger compartment when the last door is locked, the doors will be unlocked (Safe lock Function).

Courtesy of CHRYSLER GROUP, LLC

The handles are provided with courtesy lighting that will illuminate the inside of the handle and the area below where the handle is attached to the door.

• 1 - lamp to illuminate the area inside
• 2 - lamp to illuminate the area below

The lighting is enabled in the following cases:

• The door locking state changes from the "door locked" to "door unlocked"
• When the door is opened (only if the lighting was initially OFF)
• At KEY OFF

The lights are turned off in the following cases:

• - The doors go from the "door unlocked" to the "door locked" state
• - When about three minutes have passed since a "door unlock" command, without performing a KEY ON or a "door lock" request
• - At KEY ON

The lighting within the handles are LED. They are enabled and disabled by the BCM.

Courtesy of CHRYSLER GROUP, LLC

1	+15 for BCM
2	Parking lever position signal
3	Brake pedal status signal
4	Signal 2 (positive) from the ESS On/Off switch
5	N/A
6	RFH ground (from body)
8	+30 power supply for RFH
9	Signal 1 (positive) from the ESS On/Off switch
10	LIN for Hands Free
11	CAN-C (-) (Low)
12	CAN-CH (+) (High)
13	Backlight control for the ESS On/Off switch
14	N/A
15	N/A
16	N/A

Courtesy of CHRYSLER GROUP, LLC

1	Antenna signal (rear bumper)
2	Antenna signal (center floor console)
3	Antenna signal (trunk)
4	Antenna signal (rear right door)
5	Antenna signal (rear left door)
6	Left front handle signal
7	Right front handle signal
8	N/A
9	N/A
10	Trunk switch signal
11	Antenna return signal (rear bumper)
12	Antenna return signal (center floor console)
13	Antenna return signal (trunk)
14	Antenna return signal (rear right door)
15	Antenna return signal (rear left door)
16	Left front handle ground
17	Right front handle ground