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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 157 (Audio/Video - Non-DTC Based Diagnostics) >> Diagnosis And Testing >> Diagnosis And Testing - Poor Or No Am/Fm Audio Reception >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK THE ANTENNA CONNECTION 
    1. Turn the ignition off.
    2. Disconnect the Audio Antenna white connector at the TGW.
    3. Inspect the Audio Antenna connection.

      Is the Antenna connection clean and secure?

      Yes 

      • Go To  2

      No 

      • Repair the Antenna connection as needed.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  2. CHECK THE ANTENNA AND CABLE 
    1. Connect the (special tool #9977-6-FM, Antenna) to the antenna connection on the back of the TGW.
    2. Place the magnetic antenna on the roof of the vehicle.
    3. Drive the vehicle outside to a clear un-obstructed overhead view.
    4. Turn the ignition on.
    5. Turn the TGW on and set it to AM or FM band.
    6. Tune into several AM or FM stations.

      Is the audio reception still poor or not available?

      Yes 

      No 

      • Go To  3
  3. TEST THE ANTENNA BASE 
    Fig 1: Antenna Electrical Connectors & RF-Hub
    GC0148107Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Remove the headliner rear center header trim panel.
      NOTE:

      Be extremely careful not to pull too hard on the headliner which could cause it to be damaged.

    3. Disconnect the white Antenna cable connector (1) at the base.
    4. Connect the (special tool #9977-6-FM, Antenna) to the white Antenna cable connector at the antenna base.
    5. Place the magnetic antenna on the roof of the vehicle.
    6. Drive the vehicle outside to a clear un-obstructed overhead view.
    7. Turn the ignition on.
    8. Turn the TGW on and set it to AM or FM band.
    9. Tune into several AM or FM stations.

      Is the audio reception still poor or not available?

      Yes 

      • Go To  4

      No 

      • Replace the Antenna base in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  4. TEST THE ANTENNA CABLE 
    Fig 2: Special Tool & Antenna Cable
    GC0143945Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the (special tool #9977-6-FM, Antenna) from the Antenna cable.
    3. Connect the appropriate (special tool #9977-6-4, Jumper) (1) or (special tool #9977-6-2, Jumper) (1) to the Antenna cable (2) at the antenna base.
      Fig 3: Special Tool, Antenna Harness Connector & DVOM
      GC0143944Courtesy of CHRYSLER GROUP, LLC
    4. Connect the appropriate (special tool #9977-6-1, Adapter) (1) or (special tool #9977-6-3, Adapter) (1) to the Antenna cable (2) at the back of the TGW.
    5. Measure the Resistance across the tool terminals.

      Is the resistance above 52.5 or below 47.5 Ohms?

      Yes 

      • Go To  5

      No 

      • The source of the poor reception is not caused by the TGW, Antenna cable or the Antenna base.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  5. TEST THE ANTENNA CABLE FROM THE TGW TO INLINE CONNECTOR 
    Fig 4: Special Tool & Antenna Cable
    GC0143945Courtesy of CHRYSLER GROUP, LLC
    1. Disconnect the appropriate (special tool #9977-6-4, Jumper) or (special tool #9977-6-2, Jumper) from the Antenna cable at the antenna base.
    2. Remove the Left A-Pillar trim panel to access the audio antenna inline connector and disconnect it.
    3. Connect the appropriate (special tool #9977-6-4, Jumper) (1) or (special tool #9977-6-2, Jumper) (2) to the side of the Antenna cable (2) that leads to the TGW.
      Fig 5: Special Tool, Antenna Harness Connector & DVOM
      GC0143944Courtesy of CHRYSLER GROUP, LLC
    4. Measure the Resistance across the tool terminals.

      Is the resistance above 52.5 or below 47.5 Ohms?

      Yes 

      • Replace the section of antenna cable from the TGW to inline connector.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  6
  6. TEST THE ANTENNA CABLE FROM THE INLINE CONNECTOR TO THE ANTENNA BASE 
    Fig 6: Special Tool & Antenna Cable
    GC0143945Courtesy of CHRYSLER GROUP, LLC
    1. Disconnect the appropriate (special tool #9977-6-1, Adapter) or (special tool #9977-6-3, Adapter) from the rear of the TGW.
    2. Disconnect the appropriate (special tool #9977-6-4, Jumper) (1) or (special tool #9977-6-2, Jumper) (1) from the side of the Antenna cable (2) that leads to the TGW.
    3. Connect the appropriate (special tool #9977-6-4, Jumper) (1) or (special tool #9977-6-2, Jumper) (1) to the side of the Antenna cable (2) that leads to the Antenna base.
    4. Connect the appropriate (special tool #9977-6-1, Adapter) (1) or (special tool #9977-6-3, Adapter) (1) to the Antenna cable (2) at the antenna base.
      Fig 7: Special Tool, Antenna Harness Connector & DVOM
      GC0143944Courtesy of CHRYSLER GROUP, LLC
    5. Measure the Resistance across the tool terminals.

      Is the resistance above 52.5 or below 47.5 Ohms?

      Yes 

      • Replace the section of antenna cable from the inline connector to the antenna base.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • The source of the poor reception is not caused by the TGW, Antenna cable or the Antenna base.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .