B1475-CHANNEL 5 AUDIO SPEAKER OUTPUT CIRCUIT LOWFor a complete wiring diagram Refer to Section 8W.When Monitored:With the ignition on.Set Condition:The amplifier detects a shorted to ground condition on the speaker output circuit.
Possible Causes(X205) AMPLIFIED LEFT REAR SPEAKER (+) CIRCUIT SHORTED TO GROUND(X295) AMPLIFIED LEFT REAR SPEAKER (-) CIRCUIT SHORTED TO GROUNDLEFT REAR SPEAKERAMPLIFIER
Diagnostic Test1.CHECK FOR AN INTERMITTENT CONDITIONTurn the ignition on, then off, and then on again.With the scan tool, read Amplifier DTCs.Does the scan tool display active: B1475-CHANNEL 5 AUDIO SPEAKER OUTPUT CIRCUIT LOW?YesGo To 2NoThe 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.Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)2.CHECK THE (X205) AMPLIFIED LEFT REAR SPEAKER (+) CIRCUIT FOR A SHORT TO GROUNDTurn the ignition off.Disconnect the Amplifier C2 harness connector.Disconnect the Left Rear Speaker harness connector.Measure the resistance between ground and the (X205) Amplified Left Rear Speaker (+) circuit.Is the resistance below 10K ohms?YesRepair the (X205) Amplified Left Rear Speaker (+) circuit for a short to ground.Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)NoGo To 33.CHECK THE (X295) AMPLIFIED LEFT REAR SPEAKER (-) CIRCUIT FOR A SHORT TO GROUNDMeasure the resistance between ground and the (X295) Amplified Left Rear Speaker (-) circuit.Is the resistance below 10K ohms?YesRepair the (X295) Amplified Left Rear Speaker (-) for a short to ground.Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)NoGo To 44.CHECK OPERATION OF THE AMPLIFIED LEFT REAR SPEAKERReconnect and reinstall the Left Rear Speaker.Measure the resistance of the speaker circuit between the Amplifier C2 harness connector and ground.Is the resistance below 10K ohms?YesReplace the Left Rear Speaker in accordance with the service information.Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)NoReplace the amplifier in accordance with the service information.Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)