B1461-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT LOW
For a complete wiring diagram Refer to Section 8W.
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When Monitored:
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With the ignition on.
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Set Condition:
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The amplifier detects a shorted to ground condition on the speaker output circuit.
Possible Causes
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(X201) AMPLIFIED LEFT FRONT I/P SPEAKER (+) CIRCUIT SHORTED TO GROUND
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(X291) AMPLIFIED LEFT FRONT I/P SPEAKER (-) CIRCUIT SHORTED TO GROUND
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LEFT FRONT I/P SPEAKER
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AMPLIFIER
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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: B1461-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT LOW?
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 (X201) AMPLIFIED LEFT FRONT I/P SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND
Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
Disconnect the Left I/P Speaker harness connector.
Measure the resistance between ground and the (X201) Amplified Left Front I/P Speaker (+) circuit.
Is the resistance below 10K ohms?
Yes
No
3.
CHECK THE (X291) AMPLIFIED LEFT FRONT I/P SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND
Measure the resistance between ground and the (X291) Amplified Left Front I/P Speaker (-) circuit.
Is the resistance below 10K ohms?
Yes
No
4.
CHECK OPERATION OF THE AMPLIFIED LEFT FRONT I/P SPEAKER
Reconnect and reinstall the Left Front I/P Speaker.
Measure the resistance of the speaker circuit between the Amplifier C2 harness connector and ground.
Is the resistance below 10K ohms?
Yes
No