Dodge Durango (HB). Manual — part 180
B1486-CHANNEL 8 AUDIO SPEAKER OUTPUT CIRCUIT OPEN (CONTINUED)
3.
CHECK THE (X301) AMPLIFIED SUBWOOFER 2 (+) CIRCUIT FOR AN OPEN
Turn the ignition off.
Disconnect the Amplifier C1 harness connector.
Measure the resistance of the (X301) Amplified Subwoofer 2 (+) circuit
between the Amplifier C1 harness connector and the Amplified Sub-
woofer harness connector.
Is the resistance below 5.0 ohms?
Yes
>> Go To 4
No
>> Repair the (X301) Amplified Subwoofer 2 (+) circuit for an
open.
Perform BODY VERIFICATION TEST VER-1.
4.
CHECK THE (X391) AMPLIFIED SUBWOOFER 2 (-) CIRCUIT FOR AN OPEN
Turn the ignition off.
Disconnect the Amplifier C1 harness connector.
Measure the resistance of the (X391) Amplified Subwoofer 2 (-) circuit
between the Amplifier C1 harness connector and the Amplified Sub-
woofer harness connector.
Is the resistance below 5.0 ohms?
Yes
>> Replace the Amplifier in accordance with the service infor-
mation.
Perform BODY VERIFICATION TEST VER-1.
No
>> Repair the (X391) Amplified Subwoofer 2 (-) circuit for an
open.
Perform BODY VERIFICATION TEST VER-1.
HB
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
8A - 161
B1487-CHANNEL 8 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER
8A - 162
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
HB
B1487-CHANNEL 8 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER (CONTINUED)
For the Amplifier 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. Radio volume at 25 or higher.
•
Set Condition:
The amplifier detects that the output circuits are shorted together.
Possible Causes
(X301) AMPLIFIED SUBWOOFER 2 (+) CIRCUIT SHORTED TO THE (X391) AMPLIFIED SUBWOOFER 2 (-)
CIRCUIT
AMPLIFIED SUBWOOFER 2
AMPLIFIER
Diagnostic Test
1.
CHECK FOR AN INTERMITTENT CONDITION
Turn the ignition on, then off, and then on again.
With the scan tool, erase Amplifier DTCs.
Turn the radio on.
Turn the volume level to 25.
With the scan tool, read Amplifier DTCs.
Does the scan tool display active: B1487-CHANNEL 8 AUDIO
SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER?
Yes
>> Go To 2
No
>> The conditions that caused this code to set are not
present at this time. Using the wiring diagram/schematic
as a guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST VER-1.
2.
CHECK THE OPERATION OF THE AMPLIFIED SUBWOOFER 2
Disconnect the Amplified Subwoofer 2.
Measure the resistance of the speaker between the two terminals.
Is the resistance of the speaker less than 1 ohm?
Yes
>> Replace the Amplified Subwoofer in accordance with the service information.
Perform BODY VERIFICATION TEST VER-1.
No
>> Go To 3
HB
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
8A - 163
B1487-CHANNEL 8 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER (CONTINUED)
3.
CHECK THE (X301) AMPLIFIED SUBWOOFER 2 (+) CIRCUIT, AND THE (X391) AMPLIFIED SUBWOOFER
2 (-) CIRCUITS FOR A SHORT TOGETHER
Turn the ignition off.
Disconnect the Amplifier C1 harness connector.
Measure the resistance between the (X301) Amplified Subwoofer 2 (+)
circuit, and the (X391) Amplified Subwoofer 2 (-) circuit.
Is the resistance below 10K ohms?
Yes
>> Repair the (X301) Amplified Subwoofer 2 (+) circuit, and
the (X391) Amplified Subwoofer 2 (-) circuit for a short
together.
Perform BODY VERIFICATION TEST VER-1.
No
>> Replace the Amplifier in accordance with the service infor-
mation.
Perform BODY VERIFICATION TEST VER-1.
8A - 164
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
HB
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