Diagnostic Test

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.

CHECK THE ANTENNA CONNECTION
1. Turn the ignition off.
2. Disconnect the AM/FM Audio Antenna white connector at the rear of the Radio.
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 BODY VERIFICATION TEST .
CHECK THE RADIO
1. Connect the (special tool #9977-6-FM, Antenna) to the antenna connection on the back of the Radio.
2. Place the magnetic test antenna on the roof of the vehicle.
3. Turn the ignition on.
4. Turn the Radio on and set it to AM or FM band.
5. Tune in to several AM and FM stations.
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 to the service information. Refer to MODULE, RADIO RECEIVER, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3

TEST THE ANTENNA CABLE

Turn the ignition off.

Disconnect the (special tool #9977-6-FM, Antenna) from the Antenna cable.

Courtesy of CHRYSLER GROUP, LLC

Connect the appropriate 50 Ohm test (special tool #9977-6-4, Jumper) (1) or (special tool #9977-6-2, Jumper) (1) to the Antenna cable (2) at the Antenna harness connector.
Disconnect the AM/FM Audio Antenna connector at the rear of the Radio.

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 Radio.

Courtesy of CHRYSLER GROUP, LLC

Measure the Resistance across the tool terminals.
Is the resistance between 52.5 and 47.5 Ohms?

Yes
- Replace the Antenna in accordance with Service Information. Refer to ANTENNA, SATELLITE, AUDIO, REMOVAL AND INSTALLATION .
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
No
- Go To 4

TEST THE ANTENNA CABLE FROM THE RADIO TO INLINE CONNECTOR

Disconnect the appropriate (special tool #9977-6-4, Jumper) or (special tool #9977-6-2, Jumper) from the antenna cable at the Antenna harness connector.
NOTE:
It may be necessary to remove Glove Box assembly to access the intermediate connector.

Refer to GLOVE BOX, INSTRUMENT PANEL, REMOVAL AND INSTALLATION .
Disconnect the AM/FM inline antenna connector.

Connect the appropriate 50 Ohm test (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 Radio.

Courtesy of CHRYSLER GROUP, LLC

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 Radio to inline connector.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
No
- Go To 5

TEST THE ANTENNA CABLE FROM THE INLINE CONNECTOR TO THE ANTENNA

Disconnect the appropriate (special tool #9977-6-1, Adapter) or (special tool #9977-6-3, Adapter) from the rear of the Radio.

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 harness connector.

Courtesy of CHRYSLER GROUP, LLC

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.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
No
- Replace the Radio Antenna in accordance in accordance with Service Information. Refer to ANTENNA, SATELLITE, AUDIO, REMOVAL AND INSTALLATION .
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .