Jeep Liberty KJ. Manual — part 1431
3.
CHECK THE REMOTE RADIO CONTROL SWITCH VOLTAGE
Turn the ignition on.
With the Scan Tool, enter Body Computer then Sensors and monitor the Radio Control SW voltage.
Is the voltage above 3.8 volts?
Yes
>> Go To 4
No
>> Go To 8
4.
CLOCKSPRING OPEN
Turn the ignition on.
Turn the Radio on.
Disconnect the Clockspring C1 harness connector.
Connect a jumper wire between the Radio Control MUX circuit and the Radio Control MUX Return circuit.
Did the radio change stations?
Yes
>> Repair the Radio Control MUX circuit or the Radio Control MUX Return circuit for an open between the
clockspring and the splice to the switches. If OK, replace the Clockspring.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 5
5.
OPEN RADIO CONTROL MUX RETURN CIRCUIT
Turn the ignition off.
Disconnect the Clockspring C1 harness connector.
Disconnect the BCM C2 harness connector.
Measure the resistance of the Radio Control MUX Return circuit between the BCM C2 connector and the Clock-
spring C1 connector.
Is the resistance below 5.0 ohms?
Yes
>> Go To 6
No
>> Repair the Radio Control MUX Return circuit for an open between the clockspring and the BCM.
Perform BODY VERIFICATION TEST - VER 1.
6.
OPEN RADIO CONTROL MUX CIRCUIT
Turn the ignition off.
Disconnect the Clockspring C1 harness connector.
Disconnect the BCM C2 harness connector.
Measure the resistance of the Radio Control MUX circuit between the BCM C2 connector and the Clockspring C1
connector.
Is the resistance below 5.0 ohms?
Yes
>> Go To 7
No
>> Repair the Radio Control MUX circuit for an open between the clockspring and the BCM.
Perform BODY VERIFICATION TEST - VER 1.
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AUDIO/VIDEO - ELECTRICAL DIAGNOSTICS
KJ
7.
BODY CONTROL MODULE - OPEN INTERNALLY
If there are no possible causes remaining, view repair.
Repair
Replace the Body Control Module in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1.
8.
LEFT REMOTE RADIO SWITCH SHORTED TO GROUND
WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait 2 minutes
before proceeding.
CAUTION: Do not place an intact undeployed airbag module face down on a hard surface, the airbag mod-
ule will propel into the air if accidently deployed.
Remove the Driver Airbag Module.
Disconnect the Left Remote Radio Switch harness connector.
Turn the ignition on, reconnect the battery.
With the Scan Tool, enter Body Computer then Sensors and monitor the Radio Control SW voltage.
Is the voltage above 3.8 volts?
Yes
>> Replace the Left Remote Radio Switch.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 9
9.
RIGHT REMOTE RADIO SWITCH SHORTED TO GROUND
WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait 2 minutes
before proceeding.
CAUTION: Do not place an intact undeployed airbag module face down on a hard surface, the airbag mod-
ule will propel into the air if accidently deployed.
Remove the Driver Airbag Module.
Disconnect the Right Remote Radio Switch harness connector.
Turn the ignition on, reconnect the battery.
With the Scan Tool, enter Body Computer then Sensors and monitor the Radio Control SW voltage.
Is the voltage above 3.8 volts?
Yes
>> Replace the Right Remote Radio Switch.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 10
10.
CHECK THE CLOCKSPRING
Turn the ignition off.
Disconnect the Clockspring C3 harness connector.
Turn the ignition on.
With the Scan Tool, enter Body Computer then Sensors and monitor the Radio Control SW voltage.
Is the voltage above 3.8 volts?
Yes
>> Go To 11
No
>> Go To 12
KJ
AUDIO/VIDEO - ELECTRICAL DIAGNOSTICS
8A - 29
11.
RADIO CONTROL MUX CIRCUIT SHORTED TO GROUND AT THE SWITCH
Turn the ignition off.
Disconnect the Clockspring C3 harness connector.
NOTE: Ensure both remote radio switches are disconnected.
Measure the resistance between ground and the Radio Control MUX circuit at the clockspring C3 harness connec-
tor.
Is the resistance below 5.0 ohms?
Yes
>> Repair the Radio Control MUX circuit for a short to ground between the clockspring and the remote
radio switches.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Repair the Radio Control MUX circuit for a short to the Radio Control MUX Return circuit between the
clockspring and the remote radio switches.
Perform BODY VERIFICATION TEST - VER 1.
12.
CLOCKSPRING SHORTED TO GROUND
Turn the ignition off.
Disconnect the Clockspring C1 harness connector.
Turn the ignition on.
With the Scan Tool, enter Body Computer then Sensors and monitor the Radio Control SW voltage.
Is the voltage above 3.8 volts?
Yes
>> Replace the Clockspring in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 13
13.
RADIO CONTROL MUX CIRCUIT SHORTED TO GROUND
Turn the ignition off.
Disconnect the Clockspring C1 harness connector.
Disconnect the BCM C2 harness connector.
Measure the resistance between ground and the Radio Control MUX circuit.
Is the resistance below 5.0 ohms?
Yes
>> Repair the Radio Control MUX circuit for a short to ground between the clockspring and the BCM.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 14
14.
RADIO CONTROL MUX CKT SHORTED TO THE RADIO CONTROL MUX RETURN CKT
Turn the ignition off.
Disconnect the Clockspring C1 harness connector.
Disconnect the BCM C2 harness connector.
Measure the resistance between the Radio Control MUX circuit and the Radio Control MUX Return circuit.
Is the resistance below 5.0 ohms?
Yes
>> Repair the Radio Control MUX circuit for a short to the Radio Control MUX Return circuit between the
clockspring and the BCM.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Replace the Body Control Module in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1.
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AUDIO/VIDEO - ELECTRICAL DIAGNOSTICS
KJ
AUDIO/VIDEO
TABLE OF CONTENTS
page
page
AUDIO/VIDEO
AMPLIFIER CHOKE AND RELAY
CHOKE AND RELAY . . . . . . . . . . . . . . . . . . . . . . . . . 35
ANTENNA BODY & CABLE
AND CABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
ANTENNA CABLE - SATELLITE RADIO
ANTENNA MODULE
ANTENNA MODULE . . . . . . . . . . . . . . . . . . . . . . . . . 44
ANTENNA-SATELLITE RADIO
CD CHANGER
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
INSTRUMENT PANEL ANTENNA CABLE
QUARTER GLASS INTEGRAL ANTENNA
GLASS INTEGRAL ANTENNA . . . . . . . . . . . . . . . . 53
RADIO
RADIO NOISE SUPPRESSION COMPONENTS
RECEIVER-SATELLITE
REMOTE SWITCHES
SWITCHES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
SPEAKER
KJ
AUDIO/VIDEO
8A - 31
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