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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 (X209) AMPLIFIED LEFT I/P SPEAKER (+) CIRCUIT OPEN (X299) AMPLIFIED LEFT I/P SPEAKER (-) CIRCUIT OPEN LEFT FRONT I/P 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: B1463-CHANNEL 1 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 FRONT I/P SPEAKER Disconnect the Left I/P 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 Is the voltage present greater than 1 volt? Yes >> Replace the Amplified Left I/P Speaker in accordance with the service information. Perform BODY VERIFICATION TEST VER-1. No >> Go To 3 PM AUDIO/VIDEO SYSTEMS- ELECTRICAL DIAGNOSIS 8A - 45 |