B146D-CHANNEL 3 AUDIO SPEAKER OUTPUT CIRCUIT OPEN
For a complete wiring diagram Refer to Section 8W.
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When Monitored:
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Amplifier BUS wake-up. Amplifier reset with scan tool.
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Set Condition:
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The amplifier detects an open condition on the speaker output circuit.
Possible Causes
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(X209) AMPLIFIED LEFT FRONT SPEAKER (+) CIRCUIT OPEN
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(X299) AMPLIFIED LEFT FRONT SPEAKER (-) CIRCUIT OPEN
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AMPLIFIED LEFT FRONT SPEAKER
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AMPLIFIER
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Diagnostic Test
1.
CHECK FOR AN INTERMITTENT CONDITION
Turn the ignition on.
Turn the radio on.
With the scan tool, erase Amplifier DTCs.
With the scan tool, reset the amplifier.
With the scan tool, read Amplifier DTCs.
Does the scan tool display active: B146D-CHANNEL 3 AUDIO SPEAKER OUTPUT CIRCUIT OPEN?
Yes
No
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The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced,
pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
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Perform the BODY VERIFICATION TEST - VER 1.
(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
2.
CHECK THE OPERATION OF THE AMPLIFIED LEFT FRONT SPEAKER
Turn the ignition off.
Disconnect the Amplified Left Front Speaker harness connector.
Turn the ignition on.
Turn the radio on and turn the volume to mid level.
With a voltmeter set to read in A/C voltage, measure the voltage of the Amplified Left Front Speaker circuits in the Amplified Left Front Speaker harness connector.
Is the voltage present greater than 1 volt?
Yes
No
3.
CHECK THE (X209) AMPLIFIED LEFT FRONT SPEAKER (+) CIRCUIT FOR AN OPEN
Turn the ignition off.
Disconnect the Amplifier C1 harness connector.
Measure the resistance of the (X209) Amplified Left Front Speaker (+) circuit between the Amplifier C1 harness connector and the Amplified Left Front Speaker harness connector.
Is the resistance below 5.0 ohms?
Yes
No
4.
CHECK THE (X299) AMPLIFIED LEFT FRONT SPEAKER (-) CIRCUIT FOR AN OPEN
Measure the resistance of the (X299) Amplified Left Front Speaker (-) circuit between the Amplifier C1 harness connector and the Amplified Left Front Speaker harness connector.
Is the resistance below 5.0 ohms?
Yes
No