Jeep Grand Cherokee WK. Manual — part 227
B142D-AUDIO ANTENNA NOT CONNECTED (CONTINUED)
3.
RADIO
NOTE: Reconnect all previously disconnected components.
NOTE: Move vehicle outside approximately 30ft from any structure.
Turn the ignition and radio on.
With the Scan Tool, erase the audio DTC’s, put the radio in seek up and down mode for 2 loops around the band
cycle before proceeding.
With the Scan Tool, read the audio DTC’s.
Did this DTC reset?
Yes
>> Replace the radio in accordance with the service information.
Perform the BODY VERIFICATION TEST-VER1.
No
>> Test Complete.
8A - 44
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
WK
B142F-SATELLITE RADIO ANTENNA NOT CONNECTED
For the Audio System circuit diagram (Refer to 8 - ELECTRICAL/AUDIO - SCHEMATICS AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
•
With the ignition on and the Satellite Radio in seek mode.
•
Set Condition:
•
With the radio in seek mode for two loops around the band. The radio does not detect an antenna
connection or does not receive a radio satellite signal.
Possible Causes
BAD ANTENNA CONNECTION
SATELLITE RADIO RECEIVER
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
Diagnostic Test
1.
Test Antenna
Turn the ignition off.
Disconnect the Satellite Radio Antenna connector.
Inspect the Satellite Radio Antenna connection.
Was the Antenna connection clean and secure?
Yes
>> Go To 2
No
>> Repair the Antenna connection as needed.
Perform the BODY VERIFICATION TEST — VER1.
2.
SATELLITE RADIO ANTENNA
Refer to the Audio System in the service information and test the antenna in accordance with the service procedure.
Is the Antenna ok?
Yes
>> Go To 3
No
>> Repair or replace the Antenna assembly as necessary.
Perform the BODY VERIFICATION TEST — VER1.
WK
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
8A - 45
B142F-SATELLITE RADIO ANTENNA NOT CONNECTED (CONTINUED)
3.
SATELLITE RADIO RECEIVER
NOTE: Reconnect all previously disconnected components.
NOTE: Move vehicle outside approximately 30ft from any structure.
Turn the ignition and radio on.
With the Scan Tool, erase the audio DTC’s, put the satellite radio in seek up and down mode for 2 loops around the
band cycle before proceeding.
With the Scan Tool, read the audio DTC’s.
Did this DTC reset?
Yes
>> Replace the Satellite Radio Receiver in accordance with the service information.
Perform the BODY VERIFICATION TEST-VER1.
No
>> Test Complete.
8A - 46
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
WK
B221E-RADIO INTERNAL
For the Audio System circuit diagram (Refer to 8 - ELECTRICAL/AUDIO - SCHEMATICS AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
•
Continuously with the ignition on and radio turned on.
•
Set Condition:
•
The code will set if the radio detects a radio internal failure.
Possible Causes
RADIO INTERNAL FAILURE
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
Diagnostic Test
1.
Verify DTC B221E-RADIO INTERNAL IS ACTIVE
NOTE: If a DTC is set, erase the DTC and attempt to reset the
DTC. If the DTC resets, follow test.
This is an internal radio failure
View repair
Does the DTC reset and read B221E-Radio Internal?
Repair
Replace the Radio in accordance with the service informa-
tion.
Perform the BODY VERIFICATION TEST — VER 1.
WK
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
8A - 47
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