B146C-CHANNEL 3 AUDIO SPEAKER OUTPUT CIRCUIT HIGH
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 short to battery condition on the output circuit.
Possible Causes
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(X209) AMPLIFIED LEFT FRONT SPEAKER (+) CIRCUIT SHORT TO VOLTAGE
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(X299) AMPLIFIED LEFT FRONT SPEAKER (-) CIRCUIT SHORT TO VOLTAGE
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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: B146C-CHANNEL 3 AUDIO SPEAKER OUTPUT CIRCUIT HIGH?
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 FOR VOLTAGE ON THE (X209) AMPLIFIED LEFT FRONT SPEAKER (+) CIRCUIT
Turn the ignition off.
Disconnect the Amplifier C1 harness connector.
Disconnect the Amplified Left Front Speaker harness connector.
Turn the ignition on.
Measure for voltage on the (X209) Amplified Left Front Speaker (+) circuit.
Is the voltage above 10.0 volts?
Yes
No
3.
CHECK FOR VOLTAGE ON THE (X299) AMPLIFIED LEFT FRONT SPEAKER (-) CIRCUIT
Measure for voltage on the (X299) Amplified Left Front Speaker (-) circuit.
Is the voltage above 10.0 volts?
Yes
No