Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 289
4.
CHECK OPERATION OF THE AMPLIFIED SUBWOOFER
Turn the ignition off.
Reconnect the Subwoofer harness connector.
Measure the resistance of the speaker circuit between the Amplifier C1 harness connector and ground..
Is the resistance below 10K ohms?
Yes
>> Replace the Subwoofer 1 in accordance with the service information.
Perform BODY VERIFICATION TEST VER-1.
No
>> Replace the Amplifier in accordance with the service information.
Perform BODY VERIFICATION TEST VER-1.
8A - 82
AUDIO - ELECTRICAL DIAGNOSTICS
LX
B1480-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT HIGH
For a complete wiring diagram Refer to Section 8W.
LX
AUDIO - ELECTRICAL DIAGNOSTICS
8A - 83
•
When Monitored:
•
With the ignition on.
•
Set Condition:
•
The Amplifier detects a short to battery condition on the output circuit.
Possible Causes
(X300) AMPLIFIED SUBWOOFER 1 (+) CIRCUIT SHORT TO VOLTAGE
(X390) AMPLIFIED SUBWOOFER 1 (-) CIRCUIT SHORT TO VOLTAGE
AMPLIFIER
Diagnostic Test
1.
CHECK FOR AN INTERMITTENT CONDITION
Turn the ignition on, then off, and then on again.
With the scan tool, read Amplifier DTCs.
Does the scan tool display active: B1480-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT HIGH?
Yes
>> Go To 2
No
>> The conditions that caused this code to set are not present at this time. Using the wiring diagram/sche-
matic as a guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST VER-1.
2.
CHECK FOR VOLTAGE ON THE (X300) AMPLIFIED SUBWOOFER 1 (+) CIRCUIT
Turn the ignition off.
Disconnect the Amplifier C1 harness connector.
Disconnect the Amplified Subwoofer 1 harness connector.
Turn the ignition on.
Measure for voltage on the (X300) Amplified Subwoofer 1 (+) circuit.
Is the voltage above 10.0 volts?
Yes
>> Repair the (X300) Amplified Subwoofer 1 (+) circuit for a short to voltage.
Perform BODY VERIFICATION TEST VER-1.
No
>> Go To 3
3.
CHECK FOR VOLTAGE ON THE (X390) AMPLIFIED SUBWOOFER 1 (-) CIRCUIT
Measure for voltage on the (X390) Amplified Subwoofer 1 (-) circuit.
Is the voltage above 10.0 volts?
Yes
>> Repair the (X390) Amplified Subwoofer 1 (-) circuit for a short to voltage.
Perform BODY VERIFICATION TEST VER-1.
No
>> Replace the Amplifier in accordance with the service information.
Perform BODY VERIFICATION TEST VER-1.
8A - 84
AUDIO - ELECTRICAL DIAGNOSTICS
LX
B1481-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT OPEN
For a complete wiring diagram Refer to Section 8W.
LX
AUDIO - ELECTRICAL DIAGNOSTICS
8A - 85
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