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• When Monitored: • Amplifier Bus wake-up. Amplifier reset with scan tool. • Set Condition: • The Amplifier detects an open condition on the speaker output circuit. Possible Causes (X201) AMPLIFIED LEFT REAR DOOR SPEAKER (+) CIRCUIT OPEN (X291) AMPLIFIED LEFT REAR DOOR SPEAKER (-) CIRCUIT OPEN LEFT REAR DOOR SPEAKER AMPLIFIER 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 >> Go To 2 No >> The conditions that caused this code to set are not present at this time. Using the wiring diagram/sche- matic as a guide, inspect the wiring and connectors. Perform BODY VERIFICATION TEST VER-1. 2. CHECK THE OPERATION OF THE LEFT REAR DOOR SPEAKER Disconnect the Left Rear Door Speaker harness connector. 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 Rear Door Speaker circuits in Is the voltage present greater than 1 volt? Yes >> Replace the Amplified Left Rear Door Speaker in accordance with the service information. Perform BODY VERIFICATION TEST VER-1. No >> Go To 3 3. CHECK THE (X201) AMPLIFIED LEFT REAR DOOR SPEAKER (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance of the (X201) Amplified Left Rear Door Speaker (+) circuit between the Amplifier C1 harness Is the resistance below 5.0 ohms? Yes >> Go To 4 No >> Repair the (X201) Amplified Left Rear Door Speaker (+) circuit for an open. Perform BODY VERIFICATION TEST VER-1. 8A - 42 AUDIO - ELECTRICAL DIAGNOSTICS LX |