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• When Monitored: • With the ignition on. • Set Condition: • The amplifier detects a shorted to ground condition on the speaker output circuit. Possible Causes (X201) AMPLIFIED LEFT FRONT DOOR SPEAKER (+) CIRCUIT SHORTED TO GROUND (X291) AMPLIFIED LEFT FRONT DOOR SPEAKER (-) CIRCUIT SHORTED TO GROUND LEFT FRONT DOOR SPEAKER AMPLIFIER 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: B146B-CHANNEL 3 AUDIO SPEAKER OUTPUT CIRCUIT LOW? 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 (X201) AMPLIFIED LEFT FRONT DOOR SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND Disconnect the Amplifier C1 harness connector. Measure the resistance between ground and the (X201) Amplified Left Is the resistance below 10K ohms? Yes >> Repair the (X201) Amplified Left Front Door Speaker (+) cir- cuit for a short to ground. Perform BODY VERIFICATION TEST VER-1. No >> Go To 3 PM AUDIO/VIDEO SYSTEMS- ELECTRICAL DIAGNOSIS 8A - 65 |