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Diagnostic Test

  1. CHECK THE ANTENNA CONNECTION 
    1. Turn the ignition off.
    2. Disconnect the Radio C3 harness connector.
    3. Inspect the Audio Antenna harness 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 BODY VERIFICATION TEST .
  2. RADIO 
    1. Connect the antenna (special tool #9977-6-FM, Antenna) to the Radio C3 component connector.
    2. Place the test antenna base on the roof of the vehicle.
    3. Turn the ignition on.
    4. Drive the vehicle outside to an un-obstructed area.
    5. Turn the Radio on and select several different known good stations from the AM and FM bands.
    6. Note any of the following type of reception concerns being heard:
      • Silence
      • Static
      • Noise
      • Popping
      • Screeching
      • Hissing
      • Crackling
      • Humming
      • Weak Signal
      • Interference
      • Motor Sound

      Is the audio reception still poor or not available?

      Yes 

      • Replace the Radio in accordance with the service information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  3
  3. DETERMINE THE ANTENNA LOCATION 

    Does this vehicle have sales code RDL (Windshield Antenna)?

    Yes 

    • Go To  6

    No 

    • Go To  4
  4. ANTENNA 
    1. Turn the ignition off.
    2. Reconnect the Radio C3 harness connector.
    3. Disconnect the Radio Antenna harness connector.
    4. Connect the antenna (special tool #9977-6-FM, Antenna) to the Radio Antenna harness connector.
    5. Turn the Radio on and select several different known good stations from the AM and FM bands.
    6. Note any of the following type of reception concerns being heard:
      • Silence
      • Static
      • Noise
      • Popping
      • Screeching
      • Hissing
      • Crackling
      • Humming
      • Weak Signal
      • Interference
      • Motor Sound

      Is the audio reception still poor or not available?

      Yes 

      • Go To  5

      No 

      • Replace the Radio Antenna in accordance with the service information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  5. ANTENNA CABLE 
    GC0143945Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the antenna (special tool #9977-6-FM, Antenna) from the Radio Antenna harness connector.
    3. Connect the appropriate jumper (special tool #9977-6-4, Jumper) (1) or (special tool #9977-6-2, Jumper) (1) to the Radio Antenna harness connector (2) at the Antenna.
      GC0143944Courtesy of CHRYSLER GROUP, LLC
    4. Disconnect the Radio C3 harness connector.
    5. Connect the appropriate adapter (special tool #9977-6-1, Adapter) (1) or (special tool #9977-6-3, Adapter) (1) to the Radio C3 harness connector (2).
    6. Measure the resistance across the tool terminals.

      Is the resistance between 47.5 and 52.5 Ohms?

      Yes 

      • The source of the poor reception is not caused by the Radio, Antenna Cable or Radio Antenna.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Replace the Antenna Cable in accordance with the service information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  6. ANTENNA WITH SALES CODE RDL 
    1. Turn the ignition off.
    2. Reconnect the Radio C3 harness connector.
    3. Disconnect the Radio Antenna harness connector at the Radio Antenna Module.
    4. Connect the antenna (special tool #9977-6-FM, Antenna) to the Radio Antenna harness connector.
    5. Turn the Radio on and select several different known good stations from the AM and FM bands.
    6. Note any of the following type of reception concerns being heard:
      • Silence
      • Static
      • Noise
      • Popping
      • Screeching
      • Hissing
      • Crackling
      • Humming
      • Weak Signal
      • Interference
      • Motor Sound

      Is the audio reception still poor or not available?

      Yes 

      • Go To  7

      No 

      • Go To  8
  7. ANTENNA CABLE 
    GC0143945Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the antenna (special tool #9977-6-FM, Antenna) from the Radio Antenna harness connector.
    3. Connect the appropriate jumper (special tool #9977-6-4, Jumper) (1) or (special tool #9977-6-2, Jumper) (1) to the Radio Antenna harness connector (2) at the Antenna.
      GC0143944Courtesy of CHRYSLER GROUP, LLC
    4. Disconnect the Radio C3 harness connector.
    5. Connect the appropriate adapter (special tool #9977-6-1, Adapter) (1) or (special tool #9977-6-3, Adapter) (1) to the Radio C3 harness connector (2).
    6. Measure the resistance across the tool terminals.

      Is the resistance between 47.5 and 52.5 Ohms?

      Yes 

      • The source of the poor reception is not caused by the Radio, Antenna Cable or Radio Antenna.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Replace the Antenna Cable in accordance with the service information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  8. RADIO ANTENNA MODULE 
    1. Replace the Antenna Module in accordance with the service information. Refer to REMOVAL .
    2. Reconnect all Radio harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
    3. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    4. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
    5. Turn the ignition on.
    6. Drive the vehicle outside to an un-obstructed area.
    7. Turn the Radio on and select several different known good stations from the AM and FM bands.
    8. Note any of the following type of reception concerns being heard:
      • Silence
      • Static
      • Noise
      • Popping
      • Screeching
      • Hissing
      • Crackling
      • Humming
      • Weak Signal
      • Interference
      • Motor Sound

      Is the audio reception still poor or not available?

      Yes 

      • Replace the Radio Antenna in accordance with the service information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • The source of the poor reception was caused by the Radio Antenna Module.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
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