2014 Jeep Wrangler JK Factory Service Manual 08 - Electrical

8T - Navigation/Telecommunication

HANDS FREE PHONE

A Uconnect™ Hands Free Phone system is factory-installed optional equipment. This system allows hands free use of compatible mobile phones for sending and receiving phone calls and text messages as well as for streaming audio from those devices through the audio system in the vehicle. The Hands Free Phone system includes the following major components, which are described in further detail elsewhere in this service information:

The EMIC, the EVIC switches, the HFM and the RRM each also contain a microcontroller and programming that allow them to communicate with other electronic modules in the vehicle over either the Local Interface Network (LIN) data bus or the Controller Area Network - Interior High Speed (CAN-IHS) data bus. (Refer to 08 - Electrical/8E - Electronic Control Modules/COMMUNICATION - Description) .

The Uconnect™ Hands Free Phone system components cannot be adjusted or repaired. If any Hands Free Phone system component is damaged or ineffective, that component must be replaced. The Hands Free Phone system software is flash programmable.

NAVIGATION

A factory-installed satellite navigation system based upon the Global Positioning System (GPS) is an available option on this vehicle. A color touchscreen electronic display in the Radio Receiver Module (RRM) (also known as the radio or the head unit) provides a graphical interface for programming, searching for and selecting destinations.

This navigation system provides visual guidance through dynamic maps, while voice prompts through the audio system of the vehicle provide the vehicle operator with audible alerts and directions coordinated with the visual displays. The system also displays and logs valuable trip information such as speed, posted speed limit, distance and Estimated Time of Arrival (ETA).

The navigation system includes the following major components, which are described in further detail elsewhere in this service information:

The RRM also contains a microcontroller and programming that allows it to communicate with other electronic modules in the vehicle using the Controller Area Network - Interior High Speed (CAN - IHS) data bus. (Refer to 08 - Electrical/8E - Electronic Control Modules/COMMUNICATION - Description) .

The navigation system components cannot be adjusted or repaired. If any of the navigation system components is damaged or ineffective, that component must be replaced. The external combination antenna can be repaired separately from the RRM. The navigation system software as well as the map data is flash programmable through a Universal Serial Bus (USB) port.

HANDS FREE PHONE

The Uconnect™ Hands Free Phone system relies upon Bluetooth™ technology to enable wireless connectivity between Bluetooth™ compatible, paired and turned On mobile devices and the on-board entertainment system components. This system also relies upon Advanced Speech Recognition (ASR) software to enable Voice Commands to control the mobile device as well as the components and features of some other on-board systems.

The system will recognize up to ten Bluetooth™ compatible devices, each of which is identified within the system by the name acquired from the device during the pairing process. The Hands Free Phone system will communicate with a paired device that is anywhere within the vehicle. However, covering the paired device with a metal object may block the signal.

The Hands Free Phone system is operated in one of two ways: actively or passively. Active operation begins with the vehicle operator depressing a push button in the Electronic Vehicle Information Center (EVIC) switch pod in the left horizontal spoke of the steering wheel. The Uconnect™ Voice Recognition (VR) (also known as Voice Command) button is depressed for hands free Voice Command access to available features other than the phone, or the Uconnect™ Phone (Phone is identified by a phone handset icon) button is depressed for hands free phone access.

The VR or Phone button press provides a resistor multiplexed input to the Steering Control Module (SCM) in the right (also known as the speed control) switch pod. The SCM sends a switch status message over the Local Interface Network (LIN) data bus to the ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN). The EMIC is a gateway to the CAN - Interior High Speed (CAN-IHS) data bus and sends an electronic switch press message over the CAN-IHS data bus to the Hands Free Module (HFM) (also known as the Bluetooth™ module) and the Radio Receiver Module (RRM) (also known as the radio or the head unit).

When the RRM receives the electronic switch press message, the RRM suppresses any current audio output and issues an audible beep to indicate that the VR hardware within the HFM is prepared to receive a Voice Command. Part of the Uconnect™ Hands Free Phone system hardware includes the VR microphone integral to the driver side upper A-pillar trim. The microphone provides a hard wired input of Voice Commands to the VR engine within the HFM, and the ASR software converts that input into an electronic instruction message broadcast over the CAN-IHS data bus to invoke the appropriate system response. If no appropriate Voice Command is received within a few seconds following the audible beep, the system will provide an audible verbal output listing a menu of the available Voice Command options.

Passive operation begins when an incoming cellular call is received. If the Bluetooth™ phone is Short Message Service (SMS) text message capable and compatible with the Uconnect™ system (see the Uconnect™ web site), passive operation will also begin when an SMS text message is received. The call or SMS text message is relayed to the Bluetooth™ transceiver embedded within the RRM. The Bluetooth™ transceiver then instructs the RRM to announce the incoming call or message. The vehicle operator presses the Uconnect™ Phone button in the steering wheel switch pod or the soft button that will appear in the RRM display to accept the call or to accept the message.

The Bluetooth™ transceiver connects the voices of the two phone parties using outputs through the audio system speakers and inputs through the Uconnect™ hands free microphone. In the case of a text message, the Bluetooth™ transceiver sends the message to the VR hardware and the ASR software converts the message from text to voice and plays it through the audio system speakers. The text message can then be replied to by depressing the Uconnect™ VR button and giving an SMS Voice Command to select from several predetermined short text phrase responses.

The Hands Free Phone system operates on battery current received through a fused B(+) circuit, but also monitors the ignition switch status through electronic messages received over the CAN-IHS data bus. If a call is in progress when the status of the ignition switch transitions to Off, the system will continue to operate until the call has been completed.

The RRM receives electronic message inputs over the CAN-IHS data bus related to the Hands Free Phone system. The RRM is also connected to the CAN-C data bus; however, the RRM is not a CAN gateway. All electronic message outputs of the RRM are carried over the CAN-IHS data bus. When the HFM or the RRM monitors a problem in any of the audio system circuits and components, or in any of the Bluetooth™ transceiver circuits, it stores a fault code or Diagnostic Trouble Code (DTC) in its memory circuit.

The hard wired circuits between components related to the HFM, the RRM and the Hands Free Phone system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin out information and location views for the various wire harness connectors, splices and grounds.

However, conventional diagnostic methods will not prove conclusive in the diagnosis of the HFM, the RRM or the electronic controls and communication between modules and other devices that provide some features of the Hands Free Phone system. The most reliable, efficient and accurate means to diagnose the HFM, the RRM or the electronic controls and communication related to Hands Free Phone system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

NAVIGATION

The optional navigation system is active whenever the Radio Receiver Module (RRM) (also known as the radio or the head unit) electronic display is powered On. If a navigation system menu or map isn’t being actively displayed, the system is still operating in the background. The menu, map or route that was active when the RRM was powered Off along with all other user-relevant information is saved in nonvolatile memory by the navigation module for display again the next time the RRM is powered On and the navigation system is selected.

Once a destination is selected, the navigation system uses information from stored map data to quickly calculate a route. As the vehicle is driven along that route, the vehicle operator is guided with visual displays and voice prompts. Any variances from that route will cause the navigation system to automatically recalculate and deliver a revised route to the chosen destination.

All vehicles have their original map and Points-Of-Interest (POI) data stored in nonvolatile flash memory integral to the navigation module integral and internal to the RRM. Updated map and POI data as well as updated navigation software for these vehicles can be uploaded to the system using Universal Serial Bus (USB) media. The originally installed data is based upon the market for which the vehicle was manufactured. Navigation software updates are also uploaded to the system using USB media.

The Global Positioning System (GPS) receiver of the navigation module is capable of acquiring and tracking GPS signal inputs through the roof-mounted combination antenna from numerous satellites simultaneously to calculate and display the position and direction of the vehicle. However, when access to satellite signals is blocked by bridges, tunnels or other obstacles, the navigation module relies upon Dead Reckoning (DR) to aid in calculating vehicle position and direction. The navigation module uses pulse signals from the wheel speed sensors, a Reverse gear indicator input and an internal electronic gyroscope sensor to provide DR vehicle position and direction calculations to supplement GPS satellite signals.

The user input mechanism for the navigation system is the RRM touchscreen. For safety reasons some input, editing and setting features of the navigation system are restricted when the vehicle is in motion or when a hands free phone call is active. This includes many features that require touchscreen inputs.

The navigation module receives electronic message inputs within the RRM over the Controller Area Network - Interior High Speed (CAN-IHS) data bus; however, the RRM is not a CAN gateway. All electronic message outputs of the navigation module and the RRM are carried over the CAN-IHS data bus. When the RRM monitors a problem in any of the navigation system antenna circuits, it stores a fault code or Diagnostic Trouble Code (DTC) in its memory circuit. The external combination antenna may be diagnosed separately from the RRM.

The hard wired circuits between components related to the RRM and the navigation system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin out information and location views for the various wire harness connectors, splices and grounds.

However, conventional diagnostic methods will not prove conclusive in the diagnosis of the RRM or the electronic controls and communication between modules and other devices that provide some features of the navigation system. The most reliable, efficient and accurate means to diagnose the RRM or the electronic controls and communication related to navigation system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

DIAGNOSIS AND TESTING - HANDS FREE PHONE

WARNING:

To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in accidental airbag deployment.

The hard wired circuits between components related to the Hands Free Module (HFM) (also known as the Bluetooth™ module), the Radio Receiver Module (RRM) (also known as the radio or the head unit) and the Uconnect™ Hands Free Phone system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin out information and location views for the various wire harness connectors, splices and grounds.

However, conventional diagnostic methods will not prove conclusive in the diagnosis of the HFM, the RRM or the electronic controls and communication between modules and other devices that provide some features of the Uconnect™ Hands Free Phone system. The most reliable, efficient and accurate means to diagnose the HFM, the RRM or the electronic controls and communication related to Uconnect™ Hands Free Phone system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.



NOTE:

Validation and diagnosis of many of the conditions listed below will require access to both the paired Bluetooth™ device and the PIN required for that device.


HANDS FREE PHONE DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION

PHONE NOT AVAILABLE

1. Bluetooth phone not paired to the HFM.

1. Be certain that the phone is Bluetooth compatible and is paired to the HFM.

2. Bluetooth phone not present or turned Off.

2. Be certain that the paired phone is present, turned On and that the Bluetooth option is enabled in the phone.

3. Bluetooth phone has low battery.

3. At low battery levels, some phones will turn Off Bluetooth functionality. Be certain that the phone battery is charged to an adequate level.

4. The boot procedure for the HFM, the phone or both did not complete successfully.

4. Cycle both the HFM and the phone Off, then On again in an attempt to complete a successful boot procedure.

5. A phone freeze has occurred.

5. Power cycle the phone. Refer to the operator’s manual for the phone.

PHONE PAIRING FAILED

1. The phone is not Bluetooth enabled.

1. The Bluetooth transceiver requires that the cellular phone be Bluetooth enabled. The phone must be upgraded to one that is Bluetooth enabled. A list of suggested phones is available at: http://www.chrysler.com/uconnect

2. The phone does not support the Bluetooth Hands Free Profile.

2. The Bluetooth transceiver requires that the cellular phone support the Hands Free Profile. The phone must be upgraded to one that supports the Hands Free Profile. A list of suggested phones is available at: http://www.chrysler.com/uconnect

3. Incorrect discovered Bluetooth device selected in phone.

3. Be certain to select Uconnect in the discovered Bluetooth™ devices in the phone for pairing.

4. The PIN of the phone is not the same as the PIN assigned by the HFM during pairing.

4. The PIN assigned by the HFM during pairing must match the PIN of the phone.

5. Phone pairing is locked (password protected).

5. To unlock phone pairing in the phone, be certain that password protection is turned Off.

6. The HFM has reached the maximum number of allowed devices paired.

6. Remove one of the previously paired devices from the paired list of the HFM.

7. The phone has reached the maximum number of allowed devices paired.

7. Remove one of the previously paired devices from the paired list of the phone, or delete the pairing history from the phone. Refer to the operator’s manual for the phone.

8. The boot procedure for the HFM, the phone or both did not complete successfully.

8. Cycle both the HFM and the phone Off, then On again in an attempt to complete a successful boot procedure.

9. A phone freeze has occurred.

9. Perform a hard reset (power cycle) to the phone. Refer to the operator’s manual for the phone.
PHONE WILL NOT RECONNECT AFTER PAIRING

1. Bluetooth settings in phone are incorrect.

1. Bluetooth settings in phone should be set to auto-connect or select Uconnect™ as a trusted device in phone.

2. Phone pairing is locked (password protected).

2. To unlock phone pairing in the phone, be certain that password protection is turned Off.

3. The boot procedure for the HFM, the phone or both did not complete successfully.

3. Cycle both the HFM and the phone Off, then On again in an attempt to complete a successful boot procedure.

4. A phone freeze has occurred.

4. Perform a hard reset (power cycle) to the phone. Refer to the operator’s manual for the phone.

POOR VOICE RECOGNITION

1. User is not waiting for the beep tone acknowledgement before issuing Voice Commands.

1. Be certain the user knows to wait for the acknowledgement beep tone prior to issuing Voice Commands.

2. User is not issuing Voice Commands in a smooth and consistent speaking voice.

2. Be certain the user is issuing Voice Commands in a normal, smooth and consistent speaking voice. The Advanced Speech Recognition (ASR) engine is designed to recognize normal speech patterns and at a normal tone. Some users tend to speak to a computer loud and slow, which results in reduced performance.

3. User is not using proper Voice Command syntax.

3. User must speak using proper Voice Command syntax.

4. High noise levels within the passenger compartment.

4. ASR engine performance is increased when noise conditions in the passenger compartment are lowered. Ideal conditions include having the windows closed and the blower fan set to Low or Off.

5. Passengers are talking while the user is attempting to issue a Voice Command.

5. Although designed to focus on sounds from the driver’s seated position, the directional microphone will pick up sounds from any seating position in the vehicle. ASR engine performance is increased in low noise environments.

6. Foreign objects interfering with microphone input.

6. Verify that there are no foreign objects hanging from the inside rear view mirror or driver side sun visor that could be interfering with microphone reception.

7. The incorrect Uconnect switch button is being depressed.

7. Phone features are accessed using the Uconnect Phone button on the steering wheel or the Phone button in the RRM. Other Uconnect Voice Command features are accessed using either Uconnect VR button.

8. Microphone failure.

8. Use a diagnostic scan tool and the appropriate diagnostic procedures for further diagnosis of the microphone.
PHONE BOOK DOES NOT DOWNLOAD

1. Phone does not support the Phone Book Access Profile (PBAP).

1. The Uconnect system requires that the cellular phone support the PBAP profile. To enable the Uconnect phone book download feature, the phone must be upgraded to one that is PBAP enabled. A list of suggested phones is available at: http://www.chrysler.com/uconnect

2. Phone book transfer not enabled in phone during pairing.

2. Be certain that phone book transfer is accepted or enabled in the phone during pairing to enable the Uconnect phone book download feature.

3. Missing contacts from downloaded phone book.

3. Only contacts with a phone number are downloaded from phone and the number of contacts downloaded is limited to 1000.

PHONE BOOK NAMES NOT RECOGNIZED CONSISTENTLY

1. User is not waiting for the beep tone acknowledgement before issuing Voice Commands.

1. Be certain the user knows to wait for the acknowledgement beep tone prior to issuing Voice Commands.

2. User is not issuing Voice Commands in a smooth and consistent speaking voice.

2. Be certain the user is issuing Voice Commands in a normal, smooth and consistent speaking voice. The Advanced Speech Recognition (ASR) engine is designed to recognize normal speech patterns and at a normal tone. Some users tend to speak to a computer loud and slow, which results in reduced performance.

3. User is not using proper Voice Command syntax.

3. User must speak using proper Voice Command syntax (i.e.: say Call - then name, or say Dial - then number).

4. Phone book names too short.

4. For increased performance, it is recommended to use both first and last names for phone book entries. Example: Daniel Johnson as opposed to Dan.

5. Name not spoken by user as it appears in the phone book.

5. Speak the full contact name as it appears in the phone book. Do not use nicknames.

6. Multiple similar sounding names in the phone book.

6. For increased performance it is recommended that the user do not enter similar sounding names in the phone book.

7. Phone book download not yet completed.

7. Depending upon the size of the contact list on the phone, the download may not have had time to complete. If the Phone Book button on the RRM phone screen appears greyed out, the contact list download is still in progress. Wait until download completes.

8. High noise levels within the passenger compartment.

8. ASR engine performance is increased when noise conditions in the passenger compartment are lowered. Ideal conditions include having the windows closed and the blower fan set to Low or Off.

9. Passengers are talking while the user is attempting to issue a Voice Command.

9. Although designed to focus on sounds from the driver’s seated position, the directional microphone will pick up sounds from any seating position in the vehicle. ASR engine performance is increased in low noise environments.

10. Foreign objects interfering with microphone input.

10. Verify that there are no foreign objects hanging from the inside rear view mirror or the driver side sun visor that could be interfering with microphone reception.

11. The incorrect Uconnect switch button is being depressed.

11. Phone features are accessed using the Uconnect Phone button on the steering wheel or the Phone button in the RRM. Other Uconnect Voice Command features are accessed using either Uconnect VR button.

12. Microphone failure.

12. Use a diagnostic scan tool and the appropriate diagnostic procedures for further diagnosis of the microphone.

POOR PHONE AUDIO QUALITY

1. High noise levels within the passenger compartment.

1. ASR engine performance is increased when noise conditions in the passenger compartment are lowered. Ideal conditions include having the windows closed and the blower fan set to Low or Off.

2. Passengers are talking while the user is attempting to issue a Voice Command.

2. Although designed to focus on sounds from the driver’s seated position, the directional microphone will pick up sounds from any seating position in the vehicle. ASR engine performance is increased in low noise environments.

3. Foreign objects interfering with microphone input.

3. Verify that there are no foreign objects hanging from the inside rear view mirror or the driver side sun visor that could be interfering with microphone reception.

4. Microphone failure.

4. Use a diagnostic scan tool and the appropriate diagnostic procedures for further diagnosis of the microphone.

NO PHONE AUDIO

1. The settings in the phone cause the phone audio to be routed to a handset.

1. Route the phone audio to the hands free device.

CALL LOG INOPERATIVE OR INACCURATE

1. Call log not supported by phone.

1. The Uconnect system requires that the cellular phone support the call log feature. To enable the Uconnect call log feature, the phone must be upgraded to one that is call log enabled. A list of suggested phones is available at: http://www.chrysler.com/uconnect

2. The phone is not providing accurate call log data.

2. Refer to the operator’s manual for the phone.

AUDIO OUTPUT TOO LOW

1. Volume setting on the Bluetooth device set too low.

1. Set the volume of the phone or other Bluetooth device to about three quarters (3/4) of full or maximum volume.

2. Volume setting on the RRM set too low.

2. Set the volume of the RRM to the desired level during an active Uconnect Hands Free Phone call session.

DIAGNOSIS AND TESTING - NAVIGATION

WARNING:

To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in accidental airbag deployment.

The hard wired circuits between components related to the Radio Receiver Module (RRM) (also known as the radio or the head unit) and the Uconnect™ Navigation system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin out information and location views for the various wire harness connectors, splices and grounds.

However, conventional diagnostic methods will not prove conclusive in the diagnosis of the RRM or the electronic controls and communication between modules and other devices that provide some features of the Uconnect™ Navigation system. The most reliable, efficient and accurate means to diagnose the RRM or the electronic controls and communication related to Uconnect™ Navigation system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

STANDARD PROCEDURE - NAVIGATION SYSTEM - RESTORE OR UPDATE

Navigation System map and Point-Of-Interest (POI) data updates may become available occasionally through the Navteq Maps web site (www.navigation.com). The updated information as well as some additional feature applications can be downloaded and copied to Universal Serial Bus (USB) media for transfer and installation to the navigation module within the Radio Receiver Module (RRM) (also known as the radio or the head unit) in the vehicle. These are fee-based applications and updates, which are made at the option and expense of the customer.

However, a new RRM is equipped with only a standard base version of the map and POI data. Before an original RRM is replaced by the dealer with a new unit, the version of the map and POI data on the original RRM must be noted. If the version of the map and POI data found on the new RRM is not equal to or newer than the version that was found on the replaced RRM, updated data will have to be downloaded and installed to the new RRM at the expense of the dealer.